News
Phosphine-thioetehr ligands, twice in one month: a paper on palladium and a new project on chromium
July turned out to be a phosphine-thioether month for us — a paper out on palladium, a new project funded on chromium. Different metals, different olefins, same ligand backbone, and, as it happens, the same line of reasoning.
The paper
Our work on cationic allyl palladium complexes with bidentate phosphine-thioether ligands is out in Applied Organometallic Chemistry: In this work a series of (P~S)Pd (allyl) complexes tested as single-component catalysts for the vinyl-addition polymerization of norbornenes.
The activities are moderate, and that is not what this paper is about. The real issue is older and more intractable: why has this ligand family, which seems promising on paper, never performed well in polymerization? Its (P, O) relatives are some of the best catalysts known for polar copolymerization; the sulfur analogues have a very similar chelating pocket, have been studied since the early 2000s, and still have never delivered.
Our complexes simply refused to start. At room temperature — no polynorbornene, and no palladium black either. Nothing was decomposing, nothing was starting. That points at initiation rather than stability: the allyl ligand was not making the η3→ η1 shift needed for the first insertion. So we checked. We built the same ligand around a preformed Pd-CH3 bond, which needs no allyl rearrangement to get going. It gave over 99% yield in under a minute. The ligand was never the only problem — the allyl group was the comparable one.
There is a second layer to this. Variable-temperature NMR reveals several palladium species coexisting in slow exchange. The hemilabile sulfur donor and the rotational isomerism of the allyl group together spread palladium across a set of stable, interconverting forms — and it appears that only a minority of them ever enter the catalytic cycle. Pregosin's group flagged these dynamics back in 1995. Sorting out which species is which, and what each of them is doing, is a job for a dedicated kinetic study.
Special congratulations to Alexandra Knyazeva for the first scientific paper!
Full article is available via link.
The project
The second July event follows straight from the first. Our new project — "Selective oligomerization of ethylene in the presence of chromium catalysts with phosphine-thioether (P, S) ligands: rational design of catalytic systems for 1-octene production" received funding from the Russian Science Foundation.
On palladium we learned that the hemilability of the sulfur donor is not a nuisance to be engineered away: it decides which species you actually have in solution, and therefore what your catalyst does. On chromium we intend to use that deliberately — in selective ethylene oligomerization, the split between trimerization and tetramerization comes down to exactly this kind of control, and 1-octene is the target.
This is the direction we plan to grow. More as the results come in.
Norbornene lab back in the mountains: Mikitaev's Readings 2026
On July 5-10th, our team returned to the Elbrus region for the XXII International Scientific and Practical Conference "New Polymer Composite Materials. Mikitaev's Readings" — held, as always, right at the foot of the highest mountain in Russia.
Maxim and Jane came with results from two of our key directions: new polymer materials for membrane gas separation and highly active catalysts for the polymerization of cycloolefins. Both talks were met with genuine interest and grew into lively discussions — on the fundamentals of polymerization, on the rational design of polymers, and on where these materials could actually be put to work.
That's the thing about Mikitaev's Readings: it's never just a series of talks. It's one of those rare venues where professional conversation flows freely, and fundamental questions sit right next to technological problems. New ideas — including a couple of possible joint projects — took shape on the spot, some with colleagues we've known for years, some with people we met for the first time this week. The long evenings, the friendly dinners and the science talk that ran well past the official sessions did the rest.
The program reached beyond chemistry as well. One of the highlights was a brilliant historical lecture on the first Russian Academy of Sciences expedition to Elbrus — a fresh look at how the Caucasus was explored, and a reminder of how special this place really is. We were also happy to see the team featuring our colleague take the win in the intellectual quiz.
Our huge thanks to Svetlana Yu. Khashirova and the whole organizing team for the flawless event, the rich scientific and cultural program, and the warm southern hospitality.
See you next year!
Maxim and Jane came with results from two of our key directions: new polymer materials for membrane gas separation and highly active catalysts for the polymerization of cycloolefins. Both talks were met with genuine interest and grew into lively discussions — on the fundamentals of polymerization, on the rational design of polymers, and on where these materials could actually be put to work.
That's the thing about Mikitaev's Readings: it's never just a series of talks. It's one of those rare venues where professional conversation flows freely, and fundamental questions sit right next to technological problems. New ideas — including a couple of possible joint projects — took shape on the spot, some with colleagues we've known for years, some with people we met for the first time this week. The long evenings, the friendly dinners and the science talk that ran well past the official sessions did the rest.
The program reached beyond chemistry as well. One of the highlights was a brilliant historical lecture on the first Russian Academy of Sciences expedition to Elbrus — a fresh look at how the Caucasus was explored, and a reminder of how special this place really is. We were also happy to see the team featuring our colleague take the win in the intellectual quiz.
Our huge thanks to Svetlana Yu. Khashirova and the whole organizing team for the flawless event, the rich scientific and cultural program, and the warm southern hospitality.
See you next year!
OdanLab x Norbornene Lab : A New Wave of Lab Modernization
Happy Vsevolod and Fedor together with the presenters of OdanLab - Fedor Kluev, Dr. Denis Chusov, Dr. Oleg Afanasyev (from left to right). Seems like almost perfectly ordered gradient — tallest to shortest
On June 16th, our lab attended a lecture and hands-on seminar dedicated to OdanChem and, more specifically, to their OdanLab platform — a digital toolkit aimed at modernizing everyday laboratory work. The meeting was organized for the personnel of TIPS RAS.
The project was presented by our colleagues from the Laboratory of the effective catalysis of INEOS RAS — Dr. Denis Chusov, Dr. Oleg Afanasyev, and Fedor Kluev — who walked us through the philosophy behind the platform and demonstrated it in practice. What stood out most is that this is a product built by scientists for scientists: the tools clearly grow out of real bench experience rather than abstract software design.
OdanLab brings several familiar pain points under one roof, including an electronic lab notebook, a reagent inventory database, and a spectral data repository, combined with AI-powered instruments for tasks such as structure identification. Seeing these components work together — and seeing how naturally they map onto the way a synthetic lab actually operates — made for a genuinely engaging session.
For us, the seminar was more than a product demo.
As a team that spends a lot of time on synthesis, catalysis, and the mountains of spectral and characterization data that come with them, we are always looking for ways to keep our workflows organized and our records reliable. It was a useful reminder that we don't have to stand still — that there are thoughtful, science-driven tools out there worth keeping an eye on as we look to streamline our own processes.
We're grateful to Denis, Oleg, and Fedor for the lecture and the practical session, and for sharing a project that reflects the kind of initiative we like to see in our community. You can explore the platform yourself at lab.odanchem.org.
The project was presented by our colleagues from the Laboratory of the effective catalysis of INEOS RAS — Dr. Denis Chusov, Dr. Oleg Afanasyev, and Fedor Kluev — who walked us through the philosophy behind the platform and demonstrated it in practice. What stood out most is that this is a product built by scientists for scientists: the tools clearly grow out of real bench experience rather than abstract software design.
OdanLab brings several familiar pain points under one roof, including an electronic lab notebook, a reagent inventory database, and a spectral data repository, combined with AI-powered instruments for tasks such as structure identification. Seeing these components work together — and seeing how naturally they map onto the way a synthetic lab actually operates — made for a genuinely engaging session.
For us, the seminar was more than a product demo.
As a team that spends a lot of time on synthesis, catalysis, and the mountains of spectral and characterization data that come with them, we are always looking for ways to keep our workflows organized and our records reliable. It was a useful reminder that we don't have to stand still — that there are thoughtful, science-driven tools out there worth keeping an eye on as we look to streamline our own processes.
We're grateful to Denis, Oleg, and Fedor for the lecture and the practical session, and for sharing a project that reflects the kind of initiative we like to see in our community. You can explore the platform yourself at lab.odanchem.org.
Starting Spring Amid Winter Scenery: Maxim in Siberia
Maxim with Sergei Ponomarenko, Director of the Institute of Synthetic Polymer Materials of the Russian Academy of Sciences
In late March, Maxim Bermeshev participated in the All-Russian Youth School-Conference on Current Problems of Organic Chemistry held in Sheregesh, Siberia. The event made a very positive impression due to its excellent organization, engaging scientific program, and welcoming atmosphere, which fostered both professional discussions and informal interactions among colleagues.
The trip proved to be memorable in more ways than one. Siberia welcomed the participants with anything but a cold reception: the hospitality was exceptionally warm, and the overall spirit of the meeting made the scientific exchange particularly enjoyable. It was also Maxim’s first experience skiing — an accomplishment that may not yet rival catalyst development but certainly added a new dimension to the trip.
At the conference, Maxim delivered a presentation on the development of catalysts for the polymerization of cyclic olefins. His talk sparked engaging discussions and helped establish several new and promising contacts with fellow researchers specializing in organic synthesis.
Overall, the conference combined high-level science, productive networking, and a surprisingly cozy Siberian atmosphere.
The trip proved to be memorable in more ways than one. Siberia welcomed the participants with anything but a cold reception: the hospitality was exceptionally warm, and the overall spirit of the meeting made the scientific exchange particularly enjoyable. It was also Maxim’s first experience skiing — an accomplishment that may not yet rival catalyst development but certainly added a new dimension to the trip.
At the conference, Maxim delivered a presentation on the development of catalysts for the polymerization of cyclic olefins. His talk sparked engaging discussions and helped establish several new and promising contacts with fellow researchers specializing in organic synthesis.
Overall, the conference combined high-level science, productive networking, and a surprisingly cozy Siberian atmosphere.
Bye 2025! Welcome 2026!
Our Team Rings in the New Year with Laughter, Awards, and Festive Cheer
The air was buzzing with festive energy as our team gathered to bid a fond farewell to the past year and welcome the new one with open arms. The celebration kicked off with a look back at the year's journey. Colleagues shared their brightest moments reminding us all of how much we had accomplished.
Special medals were handed out for a variety of categories that captured our team's spirit. We honored the "Achievement of the Year" (took by Gleb), humorously (or not) acknowledged the Failure of the Year (awarded to Dmitry) as our best learning opportunity, and crowned the official Storyteller-Liar of the Year (Petr won). Moreover, Fedor won in the race for the prize of Zoomer of the Year. Congratulations to the laureates!
Full of cheer, our team joined colleagues from other departments, merging our celebration into a larger company-wide party. The laughter and good conversations continued late into the night, strengthening bonds across the company. It was the perfect start to what we hope will be another fantastic year together.
The air was buzzing with festive energy as our team gathered to bid a fond farewell to the past year and welcome the new one with open arms. The celebration kicked off with a look back at the year's journey. Colleagues shared their brightest moments reminding us all of how much we had accomplished.
Special medals were handed out for a variety of categories that captured our team's spirit. We honored the "Achievement of the Year" (took by Gleb), humorously (or not) acknowledged the Failure of the Year (awarded to Dmitry) as our best learning opportunity, and crowned the official Storyteller-Liar of the Year (Petr won). Moreover, Fedor won in the race for the prize of Zoomer of the Year. Congratulations to the laureates!
Full of cheer, our team joined colleagues from other departments, merging our celebration into a larger company-wide party. The laughter and good conversations continued late into the night, strengthening bonds across the company. It was the perfect start to what we hope will be another fantastic year together.
New (NHC)Pd–phosphine catalysts - available in Journal of Catalysis
A new series of palladium complexes has been developed that serve as effective catalysts for the vinyl-addition polymerization of substituted norbornenes These polymers are utilized to produce various thermally and chemically stable materials, as well as materials for optoelectronic applications. The results are published in Journal of Catalysis.
The complexes comprise three key components: a central palladium atom coordinated by a phosphine ligand and a specialized N-heterocyclic carbene ligand. Due to their unique structure and the presence of a specific counterion, these complexes remain active and stable even when exposed to air under ambient conditions, significantly facilitating polymer production.
A unique feature of these complexes is that the weaker the bond between palladium and phosphorus (i.e., the longer the Pd–P bond), the faster and more actively the polymerization process is initiated. Conversely, a stronger Pd–P bond results in longer polymer chains. Moreover, compared to existing analogs, these new complexes enable the production of longer polymer chains and can operate at higher temperatures. These characteristics make them highly promising for the development of new materials with diverse functions and properties.
Full article is available via link.
The complexes comprise three key components: a central palladium atom coordinated by a phosphine ligand and a specialized N-heterocyclic carbene ligand. Due to their unique structure and the presence of a specific counterion, these complexes remain active and stable even when exposed to air under ambient conditions, significantly facilitating polymer production.
A unique feature of these complexes is that the weaker the bond between palladium and phosphorus (i.e., the longer the Pd–P bond), the faster and more actively the polymerization process is initiated. Conversely, a stronger Pd–P bond results in longer polymer chains. Moreover, compared to existing analogs, these new complexes enable the production of longer polymer chains and can operate at higher temperatures. These characteristics make them highly promising for the development of new materials with diverse functions and properties.
Full article is available via link.
Membrane materials based on polynorbornene triethylene glycol groups
The first scientific results of 2026 are out! A norbornene with a triethylene glycol moiety has been used to create a novel CO2-selective polymeric material. The developed material is a credible candidate for industrial gas separation membranes due to its high CO2 permeability and CO2/N2 selectivity (above 2008 Robeson's upper bound), time stability, and ease of synthesis. A thorough study of its gas transport properties has not only shown how CO2 interacts with the polymer matrix, but it has also led to a new way of predicting the gas transport properties of polymer membranes.
More specifically, analyzing gas solubility coefficients, a set of Abraham coefficients can be calculated, which is some “fingerprint” of the polymer. Using this “fingerprint”, we can quite exactly predict gas transport characteristics for the gases difficult to be studied experimentally, for example, H2S or NH3.
We would also like to give a special mention to Diana Sadykova, for whom this is a first co-authored publication. Her journey from her initial visit to this achievement stands as a powerful reminder that hard work and perseverance are truly rewarded. Our warmest congratulations on this significant milestone, Diana!
Full article is available via link.
More specifically, analyzing gas solubility coefficients, a set of Abraham coefficients can be calculated, which is some “fingerprint” of the polymer. Using this “fingerprint”, we can quite exactly predict gas transport characteristics for the gases difficult to be studied experimentally, for example, H2S or NH3.
We would also like to give a special mention to Diana Sadykova, for whom this is a first co-authored publication. Her journey from her initial visit to this achievement stands as a powerful reminder that hard work and perseverance are truly rewarded. Our warmest congratulations on this significant milestone, Diana!
Full article is available via link.
Effect of plasma treatment on membrane properties of polynorbornene
Finishing the year strong! As a team of experienced specialists in the synthesis of vinyl-addition polynorbornenes, we have pioneered diverse synthetic routes to high-performance membrane materials. This time, however, we have pushed the boundaries even further. Our latest paper explores innovative surface modification of vinyl-addition polynorbornene using low-temperature plasma treatment, unlocking enhanced properties for advanced applications.
Low-temperature plasma treatment effectively enhances the gas separation performance of a commercially viable polymer (PENB), significantly improving selectivity for various gas pairs (O₂/N₂, He/CH₄, H₂/CH₄) . This surface modification, stable over time, unlocks advanced transport properties and even surpasses established industry benchmarks for gas separation membranes. As the result, the membrane performance for plasma-treated and APENB samples exeeds H2/CH4 Robeson upper bound.
Read more in the Journal of Membrane Science.
Low-temperature plasma treatment effectively enhances the gas separation performance of a commercially viable polymer (PENB), significantly improving selectivity for various gas pairs (O₂/N₂, He/CH₄, H₂/CH₄) . This surface modification, stable over time, unlocks advanced transport properties and even surpasses established industry benchmarks for gas separation membranes. As the result, the membrane performance for plasma-treated and APENB samples exeeds H2/CH4 Robeson upper bound.
Read more in the Journal of Membrane Science.
Anthracene-based membrane materials
Our lab, in collaboration with colleagues, developed new membrane materials based on polynorbornenes featuring modified dihydroanthracene side chains with methyl groups.
A key achievement is the combination of two strategies to enhance gas transport properties: the incorporation of polycyclic fragments and methyl groups into rigid-chain glassy polymers. This combined approach produces a synergistic effect that cannot be achieved by either method alone.
The experimental membranes demonstrated outstanding performance: maximum CO₂ permeability reached 1600 Barrer, and selectivity coefficients were 41 for the CO₂/N₂ pair and 4.8 for the O₂/N₂ pair. These values significantly exceed those of similar polymers lacking methyl groups.
Read more in the Journal of Polymer Science.
A key achievement is the combination of two strategies to enhance gas transport properties: the incorporation of polycyclic fragments and methyl groups into rigid-chain glassy polymers. This combined approach produces a synergistic effect that cannot be achieved by either method alone.
The experimental membranes demonstrated outstanding performance: maximum CO₂ permeability reached 1600 Barrer, and selectivity coefficients were 41 for the CO₂/N₂ pair and 4.8 for the O₂/N₂ pair. These values significantly exceed those of similar polymers lacking methyl groups.
Read more in the Journal of Polymer Science.
Progress in germanium-substituted polynorbornenes
Last week, our team presented the latest results on a novel two-step method for synthesizing polynorbornenes containing germanium substituents. This approach enables the efficient incorporation of germanium atoms into the polymer chain. The key advantage of the developed synthetic procedure is the single-step synthesis of Ge-containing monomers based on the hydrogermylation reaction. Existing methods rely on multistep procedures, including the preparation of Grignard derivatives, which are labor-intensive. The approach proposed in this work opens new possibilities for modifying the properties of polynorbornenes.
The authors conducted a comprehensive study of the structure-property relationships in a series of polynorbornenes. Particular attention was given to a comparative analysis of the effects of silicon- and germanium-based substituents on the physicochemical properties of the polymers. A pronounced effect on the polymer properties was observed for polynorbornenes with triethylgermanium (GeEt₃) substituents. Apparently, the ethyl moiety functions for the germanium atom in the same way that the methyl group does for silicon, forming the "magic" group for gas separation membranes (SiMe₃).
As a result, polymers bearing GeEt₃ substituents exhibit enhanced selectivity in separating CO₂ from other gases, combined with high permeability. This combination of high permeability and selectivity highlights the potential applicability of germanium-containing polynorbornenes in gas separation processes, such as capturing and concentrating carbon dioxide.
The results of the study were published in the Journal of Membrane Science.
The authors conducted a comprehensive study of the structure-property relationships in a series of polynorbornenes. Particular attention was given to a comparative analysis of the effects of silicon- and germanium-based substituents on the physicochemical properties of the polymers. A pronounced effect on the polymer properties was observed for polynorbornenes with triethylgermanium (GeEt₃) substituents. Apparently, the ethyl moiety functions for the germanium atom in the same way that the methyl group does for silicon, forming the "magic" group for gas separation membranes (SiMe₃).
As a result, polymers bearing GeEt₃ substituents exhibit enhanced selectivity in separating CO₂ from other gases, combined with high permeability. This combination of high permeability and selectivity highlights the potential applicability of germanium-containing polynorbornenes in gas separation processes, such as capturing and concentrating carbon dioxide.
The results of the study were published in the Journal of Membrane Science.
Young scientists in Saint Petersburgh
From October 27th to 30th, our lab participated in the 17th St. Petersburg Conference of Young Scientists with International Participation, titled "Modern Problems in Polymer Science. The conference was organized by the Institute of Polymer Science in Saint Petersburg. Our members have been attending the conference with enthusiasm every year since 2019, making this journey one of the traditions we uphold.
Our delegation consisted of three young scientists—Petr, Valeriia, and Diana—and several experienced researchers. Dr. Maxim Bermeshev delivered the plenary lecture on functional polymer materials based on cyclic hydrocarbons. Despite having his lecture early on Monday morning, Maxim was cheerful and provided a smooth introduction to the entire conference week. Petr presented his latest results on the bis-silylation reaction of norbornadiene. Valeriia discussed the synthesis of oligomers of 5-alkyl-2-norbornenes followed by hydration. Diana introduced membranes for CO2 separation based on polynorbornenes with triethylene glycol moieties. All the presentations went well, culminating in Diana receiving the award for the best oral presentation. Huge congratulations!
After the conference sessions, we enjoyed the vibrant life of Saint Petersburg. We visited a Japanese café where we tried traditional taiyaki. The table where we dined was a genuine Japanese kotatsu with blankets. In Japan, kotatsu are traditionally used during the cold season. Given the climate in Saint Petersburg, we imagine they are useful year-round.
We also had the opportunity to meet colleagues whom we had not seen for a long time. Specifically, Maxim and Eugenia visited the Technological University and met Professor Eugeny Sivtsov, one of the leading researchers in polymer science. We were delighted to reconnect!
We want to thank the organizing committee for creating a beautiful and friendly atmosphere. Special thanks to the participants for their insightful scientific discussions. We look forward to the next conference!
We also had the opportunity to meet colleagues whom we had not seen for a long time. Specifically, Maxim and Eugenia visited the Technological University and met Professor Eugeny Sivtsov, one of the leading researchers in polymer science. We were delighted to reconnect!
We want to thank the organizing committee for creating a beautiful and friendly atmosphere. Special thanks to the participants for their insightful scientific discussions. We look forward to the next conference!
Norbornene lab is back on Mikitaev's readings
From July 6 to July 11, our team participated in the International Scientific and Practical Conference «New Polymer Composite Materials. Mikitaev's Readings». The venue of the conference was the village of Elbrus, located near the highest mountain in Russia.
Our team was presented by Dr. Maxim Zotkin. Moreover, this conference has become a debut for our student Diana Sadykova. Diana had dreamed of visiting the Mikitayev's Readings since the day she came to this lab thanks to the extremely positive feedback from the colleagues who had visited the conference before.
The scientific part of the first day of the conference was marked by an opening ceremony and plenary lectures from leading experts in polymer science. The impressions were enhanced by incredible views of the mountains and rivers. On the second day Maxim and Diana presented their results during oral reports.
Our team was presented by Dr. Maxim Zotkin. Moreover, this conference has become a debut for our student Diana Sadykova. Diana had dreamed of visiting the Mikitayev's Readings since the day she came to this lab thanks to the extremely positive feedback from the colleagues who had visited the conference before.
The scientific part of the first day of the conference was marked by an opening ceremony and plenary lectures from leading experts in polymer science. The impressions were enhanced by incredible views of the mountains and rivers. On the second day Maxim and Diana presented their results during oral reports.
I felt a little nervous, since it was my first report in the scientific event of such a high level, but everything went great! And overall, the atmosphere at the conference was very friendly :)
Diana Sadykova
Maxim and Diana especially noted the entertainment program. A music band performed at the dinners. Also Max and Diana had a chance to participate in a quiz. At the same time, there was a traditional chess tournament and a salsa master class!
In general, the organization was top-notch, and the program was thought out to the smallest detail. That was an extremely great experience. Thanks to the organizing commitee and to the participants of the conference for this amazing week!
In general, the organization was top-notch, and the program was thought out to the smallest detail. That was an extremely great experience. Thanks to the organizing commitee and to the participants of the conference for this amazing week!
Membranes based on polynorbornenes with β-pinene and α-alanine moieties
Following the ongoing trend on polymer design based on renewable feedstock, our team came up with the new paper in Separation and Purification Technology. In the current work, the team of our lab synthesized norbornene-type monomers based on β-pinene and α-alanine via two-step synthetic procedure. Traditionally, these compounds were involved in the vinyl-addition polymerization in the presence of our favorite Pd-NHC cationic complexes. Application of such complexes afforded polynorbornenes with the molecular weights well over 100 000, which was the highest values of Mn obtained before for such monomers.
The polymers demonstrated high CO₂ permeability (190 Barrer) and CO₂/N₂ selectivity (44) - higher than that of industrial analogues. The results demonstrate the possibility of breaking the classic "trade-off" between permeability and selectivity, opening the way to new environmentally friendly and efficient membrane technologies.
Explore full text in Separation and Purification Technology for the details.
The polymers demonstrated high CO₂ permeability (190 Barrer) and CO₂/N₂ selectivity (44) - higher than that of industrial analogues. The results demonstrate the possibility of breaking the classic "trade-off" between permeability and selectivity, opening the way to new environmentally friendly and efficient membrane technologies.
Explore full text in Separation and Purification Technology for the details.
Annual Norbornene meeting-2025
On June 20th, we launched our annual lab meeting. The meeting was devoted to the presentations of our Ph.D. students who completed their current year of study. The meeting aims to share the results, suggest possible solutions for the problems posed, and examine students' ability to hold the pressure. Despite the high intensity of scientific discussions, the meeting was accompanied by a warm atmosphere and 10 packs of hot pizza.
One week later, on June 27th, the meeting was continued by the presentations of the younger students. In total we had 12 speakers in this section. Some of them had their debut in our lab. Naturally, some of the students felt nervous, but hopefully most of them felt supported by the team. I believe all of them did good presentations and earned a valuable experience for their future career.
In total we had 18 presentations, which took us over 10 hours to listen to, process, and discuss. In the end we felt a bit exhausted, but that was just the beginning...
In total we had 18 presentations, which took us over 10 hours to listen to, process, and discuss. In the end we felt a bit exhausted, but that was just the beginning...
Such an important event should be celebrated in an appropriate way. This year we gathered to play an archery tag game. This experience was new to the majority of the team. These two hours were very intense physically and emotionally. Despite getting some minor damage, we had pure fun. I had an intention to take the photos in the process of the game, but I myself was too involved in the game. Hope you will forgive me!
As the major event came to an end, members of our team are preparing for the upcoming events in the mountains of Russia, as well as in China and some other key scientific locations. Updates are coming soon.
As the major event came to an end, members of our team are preparing for the upcoming events in the mountains of Russia, as well as in China and some other key scientific locations. Updates are coming soon.
Important review on polymers with carbocyclic moities
The review generalizes achievements in the development of microporous materials based on polymers containing carbocyclic moieties in main or side chains for the the last 30 years.
It is shown that such direction of polymer design is a perspective way to increase microporosity of glassy polymers, their gas permeability an gas separation selectivity, being a promising alterative to the well-known incorporation of SiMe3 groups.
Structure-property relationships are identified and discussed in detail. More specifically, it is shown that the size of a cycle, amount of cycles in polycyclic structures, the presence of any substituents, and a capability to the rotation have a significant influence on free volume, specific surface area and gas transport characteristics of polymers.
The review has an open-access option and available in Polymers
It is shown that such direction of polymer design is a perspective way to increase microporosity of glassy polymers, their gas permeability an gas separation selectivity, being a promising alterative to the well-known incorporation of SiMe3 groups.
Structure-property relationships are identified and discussed in detail. More specifically, it is shown that the size of a cycle, amount of cycles in polycyclic structures, the presence of any substituents, and a capability to the rotation have a significant influence on free volume, specific surface area and gas transport characteristics of polymers.
The review has an open-access option and available in Polymers
Norbornenes in Kazan
Leading scientists in Kazan. Yes, we have many strong specialists
Maxim Bermeshev and Evgeniya took part in a prestigious conference dedicated to the latest achievements in polymer science and technology, the 1st All-Russian Conference "Polymers and Composites Based on Them: Applied and Environmental Solutions". The event took place on April 21-24 and in the historical city of Kazan, one of the largest cultural and economic centers of Russia.
For several days, Maxim and Evgeniya listened with interest to the reports of leading scientists and specialists from Russia. In addition to the scientific program, the conference provided an excellent opportunity to establish new contacts and exchange experiences with colleagues.
Maxim and Evgeniya actively participated in discussions, presented their own research and established cooperation with potential partners. In conclusion, the conference can be noted for its high level of organization, rich program and fruitful discussions.
For several days, Maxim and Evgeniya listened with interest to the reports of leading scientists and specialists from Russia. In addition to the scientific program, the conference provided an excellent opportunity to establish new contacts and exchange experiences with colleagues.
Maxim and Evgeniya actively participated in discussions, presented their own research and established cooperation with potential partners. In conclusion, the conference can be noted for its high level of organization, rich program and fruitful discussions.
Your guide to the world of delicious food in Kazan - Dr. Fedor Andreyanov himself
Later (1-4th May) Fedor also visited Kazan. Not for scientific purposes though. Nevertheless, If you want to discover the pearls of the local cusine, here are some suggestions by Fedor.
At the Artel cafe, I suggest ordering the most delicate cannoli. The breakfasts are awesome as well, but the cannoli left the deepest impression.
At the Chirem restaurant, order everything with horse meat! This is a modern interpretation of traditional Tatar cuisine. Very tasty!
If you arrived early in Kazan and want delicious coffee and a hearty breakfast, then go to the Early Bird cafe. They also have very delicate bird's milk - I recommend it.
At the Artel cafe, I suggest ordering the most delicate cannoli. The breakfasts are awesome as well, but the cannoli left the deepest impression.
At the Chirem restaurant, order everything with horse meat! This is a modern interpretation of traditional Tatar cuisine. Very tasty!
If you arrived early in Kazan and want delicious coffee and a hearty breakfast, then go to the Early Bird cafe. They also have very delicate bird's milk - I recommend it.
New Horizons in Catalysis and Organic Chemistry
Misha is looking for new horizons in catalysis
A large conference on current issues of organometallic catalysis was held at the Institute of Organic Chemistry of the Russian Academy of Sciences (IOC RAS) (“New Horizons in Catalysis and Organic Chemistry”, April 28-30, 2025).
The event, organized by one of the leading schools in this field, brought together scientists and young researchers from all over the country. Among the conference participants were employees of our laboratory and presented the results of their latest research. Our work provoked lively discussions, during which conference participants asked clarifying questions and shared their own views.
The conference at IOC RAS became a fruitful platform for exchanging experiences, discussing new ideas and establishing scientific connections.
P.S. Rumor has it that the poster session came with a tasty addition... Those who missed the conference are definetely jealous.
The event, organized by one of the leading schools in this field, brought together scientists and young researchers from all over the country. Among the conference participants were employees of our laboratory and presented the results of their latest research. Our work provoked lively discussions, during which conference participants asked clarifying questions and shared their own views.
The conference at IOC RAS became a fruitful platform for exchanging experiences, discussing new ideas and establishing scientific connections.
P.S. Rumor has it that the poster session came with a tasty addition... Those who missed the conference are definetely jealous.
Valeriia's best presentation award in Ekaterunburgh
On April 22-25th, the city of Ekaterinburg hosted the XXXV Russian Youth Scientific Conference with international participation "Problems of Theoretical and Experimental Chemistry", dedicated to the 165th anniversary of the birth of N.S. Kurnakov. The conference is held annually at the Institute of Natural Sciences and Mathematics and organized by Ural Federal University and the Ural Branch of the Russian Academy of Sciences.
Norbornene lab joined the conference for the first time. Valeriia visited Ekaterinburg and presented her research on "Synthesis of hydrogenated oligomers of 5-n-alkylnorbornenes obtained by the metathesis scheme". The presentation attracted significant attention and raised the discussion on the metathesis process. As a result, Valeriia was awarded for the best presentation. Noteworthy, Valeriia takes the award for the best presentation for the 2nd time. Well done!
Valeriia underlined the friendly atosphere of the conference which definetely worths visiting. The only disappointment was connected with the sightseeing tour organized for participants which Valeria missed, unfortunately. We believe that's the reason to return next year.
Norbornene lab joined the conference for the first time. Valeriia visited Ekaterinburg and presented her research on "Synthesis of hydrogenated oligomers of 5-n-alkylnorbornenes obtained by the metathesis scheme". The presentation attracted significant attention and raised the discussion on the metathesis process. As a result, Valeriia was awarded for the best presentation. Noteworthy, Valeriia takes the award for the best presentation for the 2nd time. Well done!
Valeriia underlined the friendly atosphere of the conference which definetely worths visiting. The only disappointment was connected with the sightseeing tour organized for participants which Valeria missed, unfortunately. We believe that's the reason to return next year.
The review of March publications
Fedor can't choose one side of the power
We kept silence since the beginning of 2025. The team of our lab works absorbedly preparing the new set of the intiguing results. We're also working on the updated version of our poster with the new members of the team. Moreover, winter is not the hot season for the events and conferences (some of them are near at hand). So the main news are connected with the recent publications of our team. Yeah, unexpected set of scientific news on the website of the scientific team.
A comprehensive review on palladium membranes has been published in Polymers by our Lab together with Prof. Yaroslavtsev and colleagues from the Polymeric membranes laboratory of TIPS RAS. The review discusses recent achievements in the development of palladium-based membranes, including polymer-palladium composites. The key issue of the review is deep purification of hydrogen with the use of palladium membranes. It is a significant issue associated with the development of hydrogen energy, because only palladium membranes can provide the required purity of hydrogen. The application of palladium-based composite membranes makes it possible to overcome such disadvantages of palladium membranes as high cost and low performance. Other promising directions of the application of palladium-based composite membranes, such as catalytic membrane reactors, fuel cells, water purifications, are also discussed in the review.
Another important work was published in Separation and Purification technology. The paper represents a set of major results produced by Fedor, Artem, Dmitry and our colleagues from the Polymeric membranes laboratory and Laboratory of polymeric composites and adhesives. The work proposes new ways of preparing silicon-substituted norbornenes which allowed synthesizing unique polymers containing orthosilicate substituents in the side chains (see the figure). A number of polynorbornenes demonstrated specific dipole-quadrupole interactions with carbon dioxide, which led to an increased solubility of the gas in the polymer.
More updates to come soon.
A comprehensive review on palladium membranes has been published in Polymers by our Lab together with Prof. Yaroslavtsev and colleagues from the Polymeric membranes laboratory of TIPS RAS. The review discusses recent achievements in the development of palladium-based membranes, including polymer-palladium composites. The key issue of the review is deep purification of hydrogen with the use of palladium membranes. It is a significant issue associated with the development of hydrogen energy, because only palladium membranes can provide the required purity of hydrogen. The application of palladium-based composite membranes makes it possible to overcome such disadvantages of palladium membranes as high cost and low performance. Other promising directions of the application of palladium-based composite membranes, such as catalytic membrane reactors, fuel cells, water purifications, are also discussed in the review.
Another important work was published in Separation and Purification technology. The paper represents a set of major results produced by Fedor, Artem, Dmitry and our colleagues from the Polymeric membranes laboratory and Laboratory of polymeric composites and adhesives. The work proposes new ways of preparing silicon-substituted norbornenes which allowed synthesizing unique polymers containing orthosilicate substituents in the side chains (see the figure). A number of polynorbornenes demonstrated specific dipole-quadrupole interactions with carbon dioxide, which led to an increased solubility of the gas in the polymer.
More updates to come soon.
Norbornene lab in China
Dinner in Chengdu with Dr. Zhongde Dai and colleagues
From December 19th to 21st, the representatives of Norbornene lab visited the city of Chendgu, China. Maxim Bermeshev and Gleb Karpov were kindly invited by Dr. Prof. Zhongde Dai to give lectures at Sichuan University.
Met for the first time back in 2018, Maxim and Zhongde have been keeping a scientific contact. Being a professor at the School of Carbon Neutrality Future Technology, Dr. Dai and his team execute extensive long-term research on membrane materials, which is one of the topics closely related to polynorbornenes. This time we got a chance to know each other better. And we actually did.
Arriving on 19th December, we had a quick welcoming lunch with Dr. Dai and his colleagues, and afterward Maxim had a chance to discover the lab. The equipment basis of Dr. Dai's lab is impressive and corresponds to the modern level of research. Moreover, some ideas for the organization of the laboratory and for the storage of chemicals inspired us to think of rearranging our approaches.
Met for the first time back in 2018, Maxim and Zhongde have been keeping a scientific contact. Being a professor at the School of Carbon Neutrality Future Technology, Dr. Dai and his team execute extensive long-term research on membrane materials, which is one of the topics closely related to polynorbornenes. This time we got a chance to know each other better. And we actually did.
Arriving on 19th December, we had a quick welcoming lunch with Dr. Dai and his colleagues, and afterward Maxim had a chance to discover the lab. The equipment basis of Dr. Dai's lab is impressive and corresponds to the modern level of research. Moreover, some ideas for the organization of the laboratory and for the storage of chemicals inspired us to think of rearranging our approaches.
Thanks to our hospitable host, we had a day to rest and recover before lectures. So on the early morning of the December 20th, we were suggested to visit Chengdu Research Base of Giant Panda Breeding, which is the hometown of pandas. The base is represented by a great green area, being very well organized and friendly to tourists. We're not sure if you want to read how cute pandas are (you know already), but for me personally, this 4-hour walk was very refreshing after long trip.
The historical building of Sichuan University
On December 21st, we had lectures for the students of the School of Carbon Neutrality Future Technology of Sichuan University. Maxim presented an overview of the membrane material design based on polynorbornenes. For decades, our lab has worked with establishing correlations between polymer structure and their membrane characteristics, and Maxim attempted to demonstrate the current state of research to the young scientists. Gleb gave a presentation on the design of catalysts for vinyl-addition polymerization of norbornenes, which is one of the rapidly emerging topics within our lab. Despite presenting complicated topics for non-specialists in this area, we hope the lectures were useful for the audience.
Thanks to Dr. Dai, we managed to discover the wealth of the famous Sichuan cuisine in its different aspects. The dinner after the lectures was supported by Chinese hot pot. The whole atmosphere and ritual open the doors to discovering a part of national culture, which has a long history reflected in its cuisine. Overall, we highly recommend visiting Sichuan, both for scientific and touristic impressions.
We're very grateful to Dr. Dai for the invitation and to his team and colleagues for hospitality and insightful talks. Hopefully this trip has built a basis for effective and productive collaboration in the upcoming years.
The entrance to the Campus of Sichuan University
Maksim and Ekaterina defended Ph.D theses
Ekaterina responded many questions after the presentation
On December 12th, Ekaterina Medentseva and Maksim Zotkin had an important events both for them personally and for our lab.
The day began with Ekaterina defending her thesis "Synthesis and study of the catalytic activity of Pd complexes with carbene ligands in the vinyl-addition polymerization of norbornene derivatives". This topic has become one of the most rapidly developing ones in our lab, and Ekaterina presented the latest results on the catalysts design. The presentation attracted a significant attention as the discussion reached its critical duration. Ekaterina performed her presentation brilliantly and managed to provide meaningful answers for the majority of questions. Ekaterina has become Ph.D in Polymer Science.
The day began with Ekaterina defending her thesis "Synthesis and study of the catalytic activity of Pd complexes with carbene ligands in the vinyl-addition polymerization of norbornene derivatives". This topic has become one of the most rapidly developing ones in our lab, and Ekaterina presented the latest results on the catalysts design. The presentation attracted a significant attention as the discussion reached its critical duration. Ekaterina performed her presentation brilliantly and managed to provide meaningful answers for the majority of questions. Ekaterina has become Ph.D in Polymer Science.
Regular Max wearing Texas ranger bolo tie
In the afternoon, norbornenes day was continued by Maxim Zotkin and his Ph.D thesis "Synthesis and study of the properties of polynorbornenes with carbocyclic substituents". This work represents the "golden classic" of theses by our laboratory which included intensive synthetic work along with the comprehensive study of polymers properties. It seemed like synthetic part was the most challenging and was connected with the need for search of appropriate synthetic pathways towards norbornenes with large carbocyclic substituents. However, we believe this paid off with a rich spectra of promising data on sorption and gas transport properties of the related polymers.
The members of the the dissertation council highlighted an impressive level of both works and confident reports by Ekaterina and Maksim. That was a pleasure to hear for every member of our team.
We know that was a long and exhausting way for both Katya and Max. Their scientific supervisors (Jane Bermesheva and Dmitry Alentiev, who's smiling in front of the Christmas tree on the picture below after having the 2nd Ph.D theses defended under his supervision) also did a great job full of challenges and breakthroughs.
We congratulate everyone who took part in this success. And we wish Katya and Max an inspiring chapters of their professional life after that day.
The members of the the dissertation council highlighted an impressive level of both works and confident reports by Ekaterina and Maksim. That was a pleasure to hear for every member of our team.
We know that was a long and exhausting way for both Katya and Max. Their scientific supervisors (Jane Bermesheva and Dmitry Alentiev, who's smiling in front of the Christmas tree on the picture below after having the 2nd Ph.D theses defended under his supervision) also did a great job full of challenges and breakthroughs.
We congratulate everyone who took part in this success. And we wish Katya and Max an inspiring chapters of their professional life after that day.
Conference in INEOS RAS
Strong team of Norbornene lab at "Chemistry of Organoelement Compounds and Polymers - 2024"
From November 18 to 22, our team took part in the conference "Chemistry of Organoelement Compounds and Polymers - 2024" organized by our friends and colleagues from the A.N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences (INEOS RAS).
Maxim Bermeshev presented an extensive report on norbornene polymers suitable for membrane gas separation. A significant part of such polymers were synthesized in our lab. Posing the key challenges and approaches, the report has become a kind of general introduction into the works of other members of our team.
Namely, Jane Bermesheva presented the report on the difficulties of designing and synthesizing single-component catalysts for vinyl-addition polymerization of norbornenes. Alena Wozniak showed the effect of spiro fragments in the composition of polynorbornenes on the efficiency of carbon dioxide extraction from gas mixtures. Alexander Morontsev attracted a lot of attention with his presentation devoted to the metathesis polymerization of alkyl norbornenes and hydrogenation of the resulting polymer products. Our Ph.D. student Petr Lezhnin tried himself as an oral speaker, presenting the results of his work devoted to the bis-silylation of norbornadiene.
Our team was happy to visit our neighbors from INEOS. We would like to warmly thank the organizers of this event for the excellent work and for the opportunity to present our latest achievements in front of the leading specialists.
Maxim Bermeshev presented an extensive report on norbornene polymers suitable for membrane gas separation. A significant part of such polymers were synthesized in our lab. Posing the key challenges and approaches, the report has become a kind of general introduction into the works of other members of our team.
Namely, Jane Bermesheva presented the report on the difficulties of designing and synthesizing single-component catalysts for vinyl-addition polymerization of norbornenes. Alena Wozniak showed the effect of spiro fragments in the composition of polynorbornenes on the efficiency of carbon dioxide extraction from gas mixtures. Alexander Morontsev attracted a lot of attention with his presentation devoted to the metathesis polymerization of alkyl norbornenes and hydrogenation of the resulting polymer products. Our Ph.D. student Petr Lezhnin tried himself as an oral speaker, presenting the results of his work devoted to the bis-silylation of norbornadiene.
Our team was happy to visit our neighbors from INEOS. We would like to warmly thank the organizers of this event for the excellent work and for the opportunity to present our latest achievements in front of the leading specialists.
90th anniversary of TIPS RAS
Part of the Norbornene lab managed to take a fast photo while the other part rocked the banquet.
On November 1st, A.V. Topchiev Institute of Petrochemical Synthesis of Russian Academy of Sciences (TIPS RAS) celebrated it's 90th Birthday. We feel proud of being a part of such a reputable and well-known organisation famous for it's scientific school and innovative approaches in different areas of chemical science.
The anniversary was marked by a ceremonial meeting of the Academic Council of TIPS RAS. The meeting was attended by most of the staff of the institute along with many respected guests and friends of TIPS RAS. The event took place at the Central House of Scientists, one of the oldest mansions located in the heart of Moscow.
Our team sincerely enjoyed the celebration and joins in all the congratulations to the Institute!
The anniversary was marked by a ceremonial meeting of the Academic Council of TIPS RAS. The meeting was attended by most of the staff of the institute along with many respected guests and friends of TIPS RAS. The event took place at the Central House of Scientists, one of the oldest mansions located in the heart of Moscow.
Our team sincerely enjoyed the celebration and joins in all the congratulations to the Institute!
Petr "The machine" Leznin in Kazan
Petr tried to look serious and confident, but not dangerous. He failed, didn't he?
From October 28th to November 1st, our postgraduate student Petr took part in the IV Scientific Conference "Dynamic Processes in the Chemistry of Organoelement Compounds". It was held at the A. E. Arbuzov Institute of Organic and Physical Chemistry in Kazan.
Petr presented the study of the reaction conditions for obtaining di-silicon-substituted norbornenes in a single-step process. Organoelement part of the work was accompanied by the investigation of the activity of the compounds obtained in polymerization.
Noteworthy, it was Petr's first oral presentation at a scientific conference. We believe, that was as much epic as every day of working with Petr in our lab.
Thanks to the organisation commitee and colleagues for these insightful days!
Petr presented the study of the reaction conditions for obtaining di-silicon-substituted norbornenes in a single-step process. Organoelement part of the work was accompanied by the investigation of the activity of the compounds obtained in polymerization.
Noteworthy, it was Petr's first oral presentation at a scientific conference. We believe, that was as much epic as every day of working with Petr in our lab.
Thanks to the organisation commitee and colleagues for these insightful days!
Norbornene lab on Mendeleev Congress
Maxim Bermeshev on XXII Mendeleev congress
Max and Jane with the colleagues from Volgograd region (Dr. D. Nebykov, VolSTU, and Dr. K. Shcherbakova, LUKOIL-Engineering) at the Mendeleev Congress on General and Applied Chemistry
From October 7th to 12th, Norbornene lab took part at the largest Russian Chemical Conference – Mendeleev Congress on General and Applied Chemistry! The event took place at Sirius, which is located on the Black Sea coast.
Jane Bermesheva reported on design of new single-component Ni- and Pd-based catalysts for vinyl-addition polymerization of cycloolefins. This topic is the continuation of the series of works on the design on the effective catalysts for norbornenes polymerization. Hopefully the details will be published soon.
Maxim had a presentation on macromolecular design of polymer membrane materials based on substituted norbonenees. In his report Maxim discussed the current state of studies and suggested the prospects for the future development.
A large number of participants, many meetings with friends, paradisiacal weather, warm sea and beautiful mountains were kindly provided by the organizing committee!
We want to thank organizers and personnel of the Mendeleev congress for their professionalism and wonderfully performed job and colleagues for the insightful discussions!
Jane Bermesheva reported on design of new single-component Ni- and Pd-based catalysts for vinyl-addition polymerization of cycloolefins. This topic is the continuation of the series of works on the design on the effective catalysts for norbornenes polymerization. Hopefully the details will be published soon.
Maxim had a presentation on macromolecular design of polymer membrane materials based on substituted norbonenees. In his report Maxim discussed the current state of studies and suggested the prospects for the future development.
A large number of participants, many meetings with friends, paradisiacal weather, warm sea and beautiful mountains were kindly provided by the organizing committee!
We want to thank organizers and personnel of the Mendeleev congress for their professionalism and wonderfully performed job and colleagues for the insightful discussions!
Euromembrane-2024 in Prague
Maxim's presentation earned a significant audience attention. Few brilliant Czech beers were well deserved (we guess)!
The intriguing meeting, Euromembrane-2024, was held in Prague, Czech Republic, at the beginning of September.
The latest results of our lab on new polymer membrane materials for CO2-separartion processes have been presented in the oral and poster presentations by Maxim and Jane.
Many thanks to organizing committee for the excellent and warm meeting, the sea of high-quality beer and the beautiful venue!
The latest results of our lab on new polymer membrane materials for CO2-separartion processes have been presented in the oral and poster presentations by Maxim and Jane.
Many thanks to organizing committee for the excellent and warm meeting, the sea of high-quality beer and the beautiful venue!
Reviews on design of porous polymeric membrane materials
The design and properties of porous polymers for sustainable membrane gas separations have been reviewed in two articles published by Prof. Lu Shao’s group with our group’s coauthorship.
These comprehensive reviews cover the recent progress in the development of polymer of intrinsic microporosity, thermally rearranged polymers and other related polymers as well as composites based on such polymers.
The reviews also provide the useful roadmap for the discovery of new high-performance polymer materials for membrane gas separation applications, in particular carbon dioxide and hydrogen separation from industrial gas streams.
You can access the reviews in Separation and Purification Technology and Chemical Engineering Journal
These comprehensive reviews cover the recent progress in the development of polymer of intrinsic microporosity, thermally rearranged polymers and other related polymers as well as composites based on such polymers.
The reviews also provide the useful roadmap for the discovery of new high-performance polymer materials for membrane gas separation applications, in particular carbon dioxide and hydrogen separation from industrial gas streams.
You can access the reviews in Separation and Purification Technology and Chemical Engineering Journal
Fedor and Marina defended Ph.D theses!
Fedor kept it friendly during the questions from the members of the dissertation council
September 26th has become a significant day for our team. This day was celebrated by the Ph.D. thesis defense of Fedor Andreyanov and Marina Guseva.
During the morning session of TIPS RAS dissertation council Fedor presented his work "Synthesis and gas transport properties of silicon-containing polymers based on 5-norbornen-2-ylmethanol". The work proposes simple and effective methods for the synthesis of silicon-substituted norbornenes containing Si-O-C fragments. Subsequent polymerization allowed Fedor to evaluate the influence of the environment of the silicon atom on the gas separation properties of the polymers.
As a result, Fedor was given the degree of Ph.D. in Polymer Science!
During the morning session of TIPS RAS dissertation council Fedor presented his work "Synthesis and gas transport properties of silicon-containing polymers based on 5-norbornen-2-ylmethanol". The work proposes simple and effective methods for the synthesis of silicon-substituted norbornenes containing Si-O-C fragments. Subsequent polymerization allowed Fedor to evaluate the influence of the environment of the silicon atom on the gas separation properties of the polymers.
As a result, Fedor was given the degree of Ph.D. in Polymer Science!
Marina delivered a well-prepared presentation being not more than just 15 min long
In the afternoon, Marina continued following the successful wave. She presented her work "Stereoselective synthesis and polymerization of Si- and Ge-containing exo-derivatives of norbornenes". During this work Marina investigated the reactions of catalytic hydrosilylation and hydrogermylation of norbornadiene-2,5 with commercially available hydrosilanes and hydrogermanes of various structures. As a result, a series of highly reactive monomers with preferably exo-orientation of substituents was obtained. The study of the polymers based on the obtained compounds made it possible to evaluate the influence of the nature and orientation of substituents on gas permeability and gas separation selectivity.
Consequently, Marina also got het Ph.D. degree in Polymer Science.
We send our warm congratulations to both Fedor and Marina along with their scientific supervisors Maxim V. Bermeshev and Dmitry A. Alentiev.
Consequently, Marina also got het Ph.D. degree in Polymer Science.
We send our warm congratulations to both Fedor and Marina along with their scientific supervisors Maxim V. Bermeshev and Dmitry A. Alentiev.
Upcoming defences of Ph.D. theses!
On September 16th, Norbornene lab held the meeting devoted to the discussion of two Ph. D. theses which had been prepared last summer by Ekaterina Medentseva and Maxim Zotkin.
Needless to say, we discussed both works in the deepest details. Both Ekaterina and Max had a 20-minute oral talk followed by 60 minutes of questions. Yeah, we guess that was exhausting expereience, but this is what we call a proper preparation.
The next day both presented their results on the meeting of the Scientific Council on Polymer Science. As a result, both Ph. D. theses are subjected to the defence on December 12th.
We wish Ekaterina and Maxim the best of luck and patience on the final stage of the work!
Needless to say, we discussed both works in the deepest details. Both Ekaterina and Max had a 20-minute oral talk followed by 60 minutes of questions. Yeah, we guess that was exhausting expereience, but this is what we call a proper preparation.
The next day both presented their results on the meeting of the Scientific Council on Polymer Science. As a result, both Ph. D. theses are subjected to the defence on December 12th.
We wish Ekaterina and Maxim the best of luck and patience on the final stage of the work!
We are on Mendeleev-2024
Gleb's presentation mode: ON
On September 2nd-6th, St. Petersburg State University held the the XIII International Conference on Chemistry for Young Scientists "Mendeleev 2024". This year's conference celebrates the 300th anniversary of the University and Russian Academy of Sciences.
The detail that keeps this conference unique is the language. The official language of the conference is English. Despite the conference takes place in Russia, and the majority of participants are local, it is still important to keep the speaking skills fluent. However, sometimes it's challenging for young scientists.
Norbornene lab participated in the section "Modern trends in Polymer Science". Valeriia Nazemutdinova gave a poster presentation "Synthesis of dimers, trimers, tetramers and pentamers of 5-n-butylnorbonene by ROMP in the presence of the 1st and 2nd generation Grubbs catalyst. Hydrogenation of metathesis polymerization products". The work behind the presentation had been performed as the basis of the Valeriia's graduate work and devoted to the development of effective motor oils based on metathesis polynorbornenes.
Gleb Karpov came with a oral presentation "Palladium complexes with phosphine-thioether ligans for vinyl-addition polymerization of norbornene and its derivatives". That was the first oral presentation on that topic. That was challenging to adapt the results for the audience with different scientific interests. However, the presentation went good enough.
Also we want to notice a very special venue of the conference. The conference took place in a new campus of SPBU called Mikhailovskaya Dacha. That is a unique historical place combining classic architecture and innovations, natural landscape and advanced technologies. Despite the location being a bit far from the city center, the whole trip delivered lots of positive emotions.
Thanks to the organisation commitee, colleagues, volunteers and everyone who was a part of the event. Looking forward to the next edition!
The detail that keeps this conference unique is the language. The official language of the conference is English. Despite the conference takes place in Russia, and the majority of participants are local, it is still important to keep the speaking skills fluent. However, sometimes it's challenging for young scientists.
Norbornene lab participated in the section "Modern trends in Polymer Science". Valeriia Nazemutdinova gave a poster presentation "Synthesis of dimers, trimers, tetramers and pentamers of 5-n-butylnorbonene by ROMP in the presence of the 1st and 2nd generation Grubbs catalyst. Hydrogenation of metathesis polymerization products". The work behind the presentation had been performed as the basis of the Valeriia's graduate work and devoted to the development of effective motor oils based on metathesis polynorbornenes.
Gleb Karpov came with a oral presentation "Palladium complexes with phosphine-thioether ligans for vinyl-addition polymerization of norbornene and its derivatives". That was the first oral presentation on that topic. That was challenging to adapt the results for the audience with different scientific interests. However, the presentation went good enough.
Also we want to notice a very special venue of the conference. The conference took place in a new campus of SPBU called Mikhailovskaya Dacha. That is a unique historical place combining classic architecture and innovations, natural landscape and advanced technologies. Despite the location being a bit far from the city center, the whole trip delivered lots of positive emotions.
Thanks to the organisation commitee, colleagues, volunteers and everyone who was a part of the event. Looking forward to the next edition!
The venue: Mikhaylovskaya dacha
Maxim and Jane in China
Maxim Bermeshev at membrane manufacturing plant
The recent developments of our lab in the field of polymers for membrane gas separation processes were presented by Maxim Bermeshev and Jane Bermesheva at the 14th Conference of the Aseanian Membrane Society (AMS14).
A lot of new contacts and hot discussions were held in the south of China (Nanjing, China) from 07/23/2024 to 07/26/2024.
Thanks to the organizing committee for the pleasant meeting and the great tour of the membrane manufacturing plant.
A lot of new contacts and hot discussions were held in the south of China (Nanjing, China) from 07/23/2024 to 07/26/2024.
Thanks to the organizing committee for the pleasant meeting and the great tour of the membrane manufacturing plant.
The Magic of Spiro‐Epoxy Moiety
Our wizards can do that!
A new example showing the critical influence of isomerism on gas separation performance was published in Advanced Functional Materials by our lab and our colleagues from Lab 18 of TIPS RAS and MSU.
Vinyl-addition polynorbornenes containing oxirane-moieties at spiro centers exhibited both high CO2-permeability with remarkable selectivities for separation of carbon dioxide from its mixtures with nitrogen and methane, while the isomeric polymers bearing oxirane moieties at the ends of side chains had significantly lower CO2-permeability and CO2/gas selectivities.
The data for CO2/CH4 separation for the polymers with oxirane-moieties at spiro centers are above or close to Robeson upper bound of 2018 for mixed gases.
Check the full paper in Advanced and functional materials.
Vinyl-addition polynorbornenes containing oxirane-moieties at spiro centers exhibited both high CO2-permeability with remarkable selectivities for separation of carbon dioxide from its mixtures with nitrogen and methane, while the isomeric polymers bearing oxirane moieties at the ends of side chains had significantly lower CO2-permeability and CO2/gas selectivities.
The data for CO2/CH4 separation for the polymers with oxirane-moieties at spiro centers are above or close to Robeson upper bound of 2018 for mixed gases.
Check the full paper in Advanced and functional materials.
Norbornenes on Mikitaev readings
Max, Dmitry and Fedor enjoying the conference hall
On July 4th to 10th, our team took part in the the International Scientific and Practical Conference “New Polymer Composite Materials. Mikitaevsky readings". The conference located in the village of Elbrus and the highest mountain of Russia.
Maxim Zotkin presented his results on microporous materials based on polynorbornenes with carbocyclic substituents. Fedor Andreyanov gave a presentation called "Synthesis and gas transport properties of silicon-containing polymers on based on 5-norbornenyl-2-methanol". The work behind these two presentations was put into the basis of Maxim's and Fedor's PhD theses which, we expect, are going to be defended in the upcoming months.
Dmitry Alentiev, who was our team's pioneer attending the conference for the first time two years ago, brought very interesting results on the membranes based on polynorbornenes with specific interaction of carbon dioxide with polymer matrix.
The excellent organization of the conference and the stunning location of the event contribute to the generation of new ideas for cooperation between laboratories.
Maxim Zotkin presented his results on microporous materials based on polynorbornenes with carbocyclic substituents. Fedor Andreyanov gave a presentation called "Synthesis and gas transport properties of silicon-containing polymers on based on 5-norbornenyl-2-methanol". The work behind these two presentations was put into the basis of Maxim's and Fedor's PhD theses which, we expect, are going to be defended in the upcoming months.
Dmitry Alentiev, who was our team's pioneer attending the conference for the first time two years ago, brought very interesting results on the membranes based on polynorbornenes with specific interaction of carbon dioxide with polymer matrix.
The excellent organization of the conference and the stunning location of the event contribute to the generation of new ideas for cooperation between laboratories.
Annual lab seminar
Petr Lezhnin presented his graduate work on bis-silylation of norbornadiene
On May 24th, Norbornene lab held its annual meeting. The event takes a very special place in our calendar as our internal conference.
The agenda of the meeting was devoted to our young colleagues, who presented their recent results. The main idea is to prepare a presentation that delivers a clean understanding of the scientific problems touched in the work along with possible solutions that are put into the basis of the work. Despite working together on a daily basis, sometimes the actual scientific focus of each member gets lost. Such meetings help us understand our key directions for development and the new ideas and approaches that different members of the team bring to our toolbox.
Each presentation was followed by a detailed discussion during the meeting and afterwards. We believe that was helpful for the upcoming defending of coursework and PhD theses.
The agenda of the meeting was devoted to our young colleagues, who presented their recent results. The main idea is to prepare a presentation that delivers a clean understanding of the scientific problems touched in the work along with possible solutions that are put into the basis of the work. Despite working together on a daily basis, sometimes the actual scientific focus of each member gets lost. Such meetings help us understand our key directions for development and the new ideas and approaches that different members of the team bring to our toolbox.
Each presentation was followed by a detailed discussion during the meeting and afterwards. We believe that was helpful for the upcoming defending of coursework and PhD theses.
The official part of the meeting was followed by an informal one. This year's meeting coincided with Fedor's Birthday, so we decided to have fun playing laser tag and bowling together.
We believe our team spirit has grown even greater. Now we're moving to the productive summer vacation working season.
We believe our team spirit has grown even greater. Now we're moving to the productive summer vacation working season.
Norbornene lab x Hiroshima: ISOS-20/ASIS-9 conference
Maxim Bermeshev took part in ISOS-20/ASIS-9 conference in Hiroshima, Japan. This conference is the largest International Symposium on Silicon Chemistry.
Maxim presented the latest results on a new direction of our lab – bis-silylation of cycloalkenes. Thanks to Organizing committee for the very warm welcome and this great conference! There were many interesting meetings with colleagues and new acquaintances.
The photo shows Maxim and Evgeniya Bermesheva with Prof. G. Nikonov (Canada) and Prof. V. Lee (Japan) in front of the Grand Torii Gate, Itsukushima Shrine.
Maxim presented the latest results on a new direction of our lab – bis-silylation of cycloalkenes. Thanks to Organizing committee for the very warm welcome and this great conference! There were many interesting meetings with colleagues and new acquaintances.
The photo shows Maxim and Evgeniya Bermesheva with Prof. G. Nikonov (Canada) and Prof. V. Lee (Japan) in front of the Grand Torii Gate, Itsukushima Shrine.
Carbon dioxide separation performance of vinyl-addition polynorbornenes with ester functionalities
Recently a new paper was published in Journal of Membrane science.
The study shows that simple polymer structures can demonstrate high efficiency. The simplest vinyl-addition polynorbornenes with ester groups turned out to be effective membrane materials for separating carbon dioxide from methane and nitrogen.
The properties of such polymers can be improved if the pendant ester groups are correctly attached to the polymer backbone. In this case, the notorious anti-bate relationship between permeability and selectivity is violated (the higher the permeability, the lower the selectivity and vice versa) and both permeability and selectivity are significantly increased.
Learn more in Journal of Membrane Science.
The study shows that simple polymer structures can demonstrate high efficiency. The simplest vinyl-addition polynorbornenes with ester groups turned out to be effective membrane materials for separating carbon dioxide from methane and nitrogen.
The properties of such polymers can be improved if the pendant ester groups are correctly attached to the polymer backbone. In this case, the notorious anti-bate relationship between permeability and selectivity is violated (the higher the permeability, the lower the selectivity and vice versa) and both permeability and selectivity are significantly increased.
Learn more in Journal of Membrane Science.
Interview in RSF digest
The Russian science foundation digest presents an interview with Eugenia Bermesheva about the development of single-component catalysts for the vinyl-addition polymerization of cycloolefins.
You can learn about how these catalysts help in the creation and development of new polymer materials in the digest (pages 50-52).
P.S. Don't mind the white coats on the photos. You know that hard work always leaves marks. So these coats were prepared exclusively for beautiful photographs :)
You can learn about how these catalysts help in the creation and development of new polymer materials in the digest (pages 50-52).
P.S. Don't mind the white coats on the photos. You know that hard work always leaves marks. So these coats were prepared exclusively for beautiful photographs :)
Valeria takes the best report on Lomonosov conference
On the April 8-26th, Lomonovos Moscow state university held the traditional Lomonosov conference for young scientists. Every year our young colleagues take part in the conference and attract much attention.
This year our graduate student Valeria Nazemutdinova attended the conference with the report "Synthesis of metathesis and hydrogenated oligomers of 5-n-butylnorbornene". The work behing this presentation is dedicated to the development of new synthetic oils based on petroleum by-products.
We're happy to announce that Valeria took the award for the best poster presentation in Polymer section. That is a great honor for the whole team.
Congratulations!
This year our graduate student Valeria Nazemutdinova attended the conference with the report "Synthesis of metathesis and hydrogenated oligomers of 5-n-butylnorbornene". The work behing this presentation is dedicated to the development of new synthetic oils based on petroleum by-products.
We're happy to announce that Valeria took the award for the best poster presentation in Polymer section. That is a great honor for the whole team.
Congratulations!
TIPS RAS anniversary conference
theOn April 8-12th, A.V. Topchiev Institute of Petrochemical synthesis of Russian academy of Sciences held a conference dedicated to the 90th anniversary of the Instutute. As a part of the institute, our lab proudly presented the results of the last few years.
Norbornene lab joined the conference with 10 reports. Along with the long-term results on membrane materials based on norbornene derivatives or Pd-catalysts for vinyl addition polymerization, some fresh topic were presented. Namely, recent results on influence of phosphines on vinyl addition polymerization of norbornene derivatives were reported for the first time. These data will be out later this year in an upcoming paper.
The whole team sends the warmest congratulations to Marina Guseva for taking the award for the best oral presentation in Polymer section. Marina's report on a simple method of synthesis of exo-substituted norbornene derivatives via hydrosilylation reaction attracted much interest last few weeks since Marina also is going to defend her PhD thesis on the related topic soon.
In the end, we want to thank everyone who took part in the organisation of the conference.
Norbornene lab joined the conference with 10 reports. Along with the long-term results on membrane materials based on norbornene derivatives or Pd-catalysts for vinyl addition polymerization, some fresh topic were presented. Namely, recent results on influence of phosphines on vinyl addition polymerization of norbornene derivatives were reported for the first time. These data will be out later this year in an upcoming paper.
The whole team sends the warmest congratulations to Marina Guseva for taking the award for the best oral presentation in Polymer section. Marina's report on a simple method of synthesis of exo-substituted norbornene derivatives via hydrosilylation reaction attracted much interest last few weeks since Marina also is going to defend her PhD thesis on the related topic soon.
In the end, we want to thank everyone who took part in the organisation of the conference.
Review on single-component catalytst for vinyl-addition polymerization of norbornene
One of the key directions of our investigations is the rational design of effective catalysts for vinyl-addition polymerization (VAP) of various norbornene derivatives. In the last 5 years, our team together with the colleagues from TIPS RAS managed to significantly expand the scope of research on Pd-catalysts for VAP. Sequential optimization of the structures of NHC-Pd complexes led to the formation of ultra-active catalytst that made the control of vinyl-addition polymerization much more accessible. An understanding of key principles of the mechanism of polymerization led to attempts of development of single-component Pd catalytst for VAP.
In the current review published in ChemCatChem, the head of our lab Maxim Bermeshev together with Eugenia Bermesheva discussed the recent advances in this area and poses key directions for the upcoming development of such catalysts.
Definitely must-read. The review has open an access option.
In the current review published in ChemCatChem, the head of our lab Maxim Bermeshev together with Eugenia Bermesheva discussed the recent advances in this area and poses key directions for the upcoming development of such catalysts.
Definitely must-read. The review has open an access option.
A new paper on hydrosilylation
Recently our team published a research paper on another approach to the synthesis of silicon-containing polynorbornenes using post-modification of poly(5-ethylydene)-2-norbornene. The results were presented in Polymer Chemistry.
The main idea is a straightforward and efficient method for synthesizing various silicon-containing vinyl-addition polynorbornenes by hydrosilylation of side chains in a parent polymer containing vinyl groups. A huge effort was put into the search for efficient catalysts for hydrosilylation. Traditional Karstedt's catalysts exhibited high activity, but provided insoluble products. In turn, the application of less active (NHC)Pt catalytst led to the formation of soluble products. Optimizing the catalyst's structure made it possible to find the most efficient (NHC)Pt-catalyst among the studied complexes.
This catalyst allowed us to reach high selectivities and conversions (>90%) of vinyl groups in PVNB.
Our huge congratulations to Alyona Wozniak, Evgenia Bermesheva and the whole team!
The main idea is a straightforward and efficient method for synthesizing various silicon-containing vinyl-addition polynorbornenes by hydrosilylation of side chains in a parent polymer containing vinyl groups. A huge effort was put into the search for efficient catalysts for hydrosilylation. Traditional Karstedt's catalysts exhibited high activity, but provided insoluble products. In turn, the application of less active (NHC)Pt catalytst led to the formation of soluble products. Optimizing the catalyst's structure made it possible to find the most efficient (NHC)Pt-catalyst among the studied complexes.
This catalyst allowed us to reach high selectivities and conversions (>90%) of vinyl groups in PVNB.
Our huge congratulations to Alyona Wozniak, Evgenia Bermesheva and the whole team!
Vsevolod Zhigarev defended PhD thesis
Confident Vsevolod
December 7th became another significant day for our lab. Vsevolod Zhigarev presented his fundamental work on synthesis and post-modification of silicon-containing poly(tricyclodecadienes). As a result of the presentation, Vsevolod defended his PhD thesis.
The realization of a promising idea underlying in the basis of the Vsevolod's work has turned out to bring a lot of challenges. We suffice to say each of the results obtained was achieved through hard work. That makes the outcome even more valuable. The presentation went well as Vsevolod managed to keep confidence and calmness during his tals. Our warm congratulations to Vsevolod!
You can also check the most significant publications on the topic in Polymers, European Polymer Journal and Polymer Science Series C.
The realization of a promising idea underlying in the basis of the Vsevolod's work has turned out to bring a lot of challenges. We suffice to say each of the results obtained was achieved through hard work. That makes the outcome even more valuable. The presentation went well as Vsevolod managed to keep confidence and calmness during his tals. Our warm congratulations to Vsevolod!
You can also check the most significant publications on the topic in Polymers, European Polymer Journal and Polymer Science Series C.
Winter's first Monday
Fedor and Vsevolod look strong
Winter came to Moscow with a huge snowstorm last weekend. So the first monday of winter season was full of charming impressions.
It's time for a final push to finish the year strong. One of the keys to the strength is a monday delivery of liquid nitrogen to the lab. Our team can do that despite any weather surprises.
Enjoy the winter and it's upcoming weekends!
It's time for a final push to finish the year strong. One of the keys to the strength is a monday delivery of liquid nitrogen to the lab. Our team can do that despite any weather surprises.
Enjoy the winter and it's upcoming weekends!
Bromo-substitured norbornenes involved in vinyl-addition polymerization
Our researchers have found a new way to involve bromo-substituted norbornenes in vinyl-addition polymerization.
It was presiously shown that bromo-substituted norbornenes are inactive in homopolymerization reactions. Earlier the related polymers were synthesized via copolymerization with active norbornene-type monomers.
In the present study norbornene lab group successfully studied the reactivity of bromine-containing norborenes in the vinyl-addition polymerization. A series of the monomers with varied spacing between the norbornene backbone and the bromine atom were involved in the polymerization. One of the keys to success was the application of one- and three-component Pd-based systems bearing N-heterocyclic carbene ligands.
These polymers can subsequently be used as precursors for the production of anion-exchange membranes with a large proportion of ionogenic groups.
The related results were published in Polymers.
It was presiously shown that bromo-substituted norbornenes are inactive in homopolymerization reactions. Earlier the related polymers were synthesized via copolymerization with active norbornene-type monomers.
In the present study norbornene lab group successfully studied the reactivity of bromine-containing norborenes in the vinyl-addition polymerization. A series of the monomers with varied spacing between the norbornene backbone and the bromine atom were involved in the polymerization. One of the keys to success was the application of one- and three-component Pd-based systems bearing N-heterocyclic carbene ligands.
These polymers can subsequently be used as precursors for the production of anion-exchange membranes with a large proportion of ionogenic groups.
The related results were published in Polymers.
Shades of grey : Norbornene lab in Saint-Petersburgh
Vsevolod beams with delight during Alexander's poster presentation. Original Saint-Petersburgh picture filter: mode on
On November 13-17 th, three members of Norbornene lab presented TIPS RAS on the "Modern problems of polymer science" conference. The conference took place in the historical building of Russian academy of sciences in Saint-Petersburgh.
Gleb Karpov presented preliminary results on new palladium catalysts for polymerization on poster session. Alexander Morontsev attended the conference with a poster presentation on metathesis olygomerization of 5-n-butylnorbornene in the presence of dimethylmaleate. Vsevolod Stepanyants had his debut with oral presentation on tandem process of metathesis polymerization-hydrogenation of cyclic oligomers. Young Vsevolod did his best preparing the talk and himself (check his suit). Huge congratulations!
Despite Saint-Petersburgh is believed to be a capital of dark and grey vibes in Russia, we spent a fun time at the city. Many thanks to the organizers for a warm welcome.
Gleb Karpov presented preliminary results on new palladium catalysts for polymerization on poster session. Alexander Morontsev attended the conference with a poster presentation on metathesis olygomerization of 5-n-butylnorbornene in the presence of dimethylmaleate. Vsevolod Stepanyants had his debut with oral presentation on tandem process of metathesis polymerization-hydrogenation of cyclic oligomers. Young Vsevolod did his best preparing the talk and himself (check his suit). Huge congratulations!
Despite Saint-Petersburgh is believed to be a capital of dark and grey vibes in Russia, we spent a fun time at the city. Many thanks to the organizers for a warm welcome.
Lev Tolstoy x Norbornene lab
On October 8-12th, Maxim, Dmitry and Peter presented their recent works on the development of polymers and membrane materials based on organosilicon monomers at the 9-th Bakeev all-Russian conference for young scientists "Macromolecular nanoobjects and polymer composites".
The conference took place at Tula State Pedagogical University named by Lev Tolstoy, who was a famous Russian writer. Couldn't miss the opportunity of taking a photo with Tolstoy's charachter.
The conference took place at Tula State Pedagogical University named by Lev Tolstoy, who was a famous Russian writer. Couldn't miss the opportunity of taking a photo with Tolstoy's charachter.
Maxim and Jane on Baikal readings 2023
The recent results obtained in our lab were presented in the conference "Baikal Readings 2023"by Maxim B. and Jane B. The conference took place near the pearl of the world – Lake Baikal.
Jane gave a short report on the recent advances in development of single-component catalysts for vinyl-addition polymerization of norbornene derivatives. Maxim presented a traditional introducing lecture on polymeric materials based on norbornene-type monomers.
Thanks to Organizing Committee for the excellent organization and the nice venue!
Lectures in Saint-Petersburgh by Maxim Bermeshev
Maxim Bermeshev and Jane Bermesheva took part in the conference "Ideas and Legacy of A.E. Favorsky in Organic Chemistry", which was held in Saint Petersburg, Russia.
Maxim gave an invited lecture on the targeted design of polymeric membrane materials derived from norbornenes.
Jane gave an oral talk describing recent advances the group has made toward the development of single-component catalysts for vinyl-addition polymerization. Fresh results of our team in this direction were recently published in ACS Catalysis. Moreover, we're preparing a review on the topic of Jane's talk.
Hopefully next time we'll be able to announce the upcoming lectures of our leading specialists.
Artem's debut on conference in Sochi
On May 22-27th, Artem Lunin and Alyona Wozniak took part in the conference "Ion Transport in Organic and Inorganic Membranes".
Artem gave an oral talk devoted to polymeric ionic liquids based on vinyl-addition homo- and copolymers of 5-hexyl-2-norbornene and 5-(4-bromobutyl)norbornene. Various physicochemical properties of the synthesized polymers were studied. This work is a part of Artem's graduate work that's planned to be defended next summer. Moreover, that was the first oral talk for Artem on such conference. Congrats on well-prepared presentation and confident report!
Alyona presented her results on anion-exchange membranes based on quaternized vinyl-addition poly(5-vinyl-2-norbornene). This work is an extension of her Ph.D thesis defended last year dedicated to synthesis post-modification of vinyl-addition poly(5-alkylidene-2-norbornene) derivatives. It was shown that increasing the molar fraction of hydrophilic moities in copolymer leads to a significant increase in conductivity. The results were obtained in cooperation with the colleagues from Kurnakov Institute of General and Inorganic Chemistry.
Artem gave an oral talk devoted to polymeric ionic liquids based on vinyl-addition homo- and copolymers of 5-hexyl-2-norbornene and 5-(4-bromobutyl)norbornene. Various physicochemical properties of the synthesized polymers were studied. This work is a part of Artem's graduate work that's planned to be defended next summer. Moreover, that was the first oral talk for Artem on such conference. Congrats on well-prepared presentation and confident report!
Alyona presented her results on anion-exchange membranes based on quaternized vinyl-addition poly(5-vinyl-2-norbornene). This work is an extension of her Ph.D thesis defended last year dedicated to synthesis post-modification of vinyl-addition poly(5-alkylidene-2-norbornene) derivatives. It was shown that increasing the molar fraction of hydrophilic moities in copolymer leads to a significant increase in conductivity. The results were obtained in cooperation with the colleagues from Kurnakov Institute of General and Inorganic Chemistry.
New project supported
Norbornene lab received funding from the Russian Science Foundation to support our work in the development of Pd-based catalytic systems for norbornene/ethylene copolymerization. That's the first project to be led by Gleb Karpov. Congrats!
Thank you to RSF for your generous support!
Thank you to RSF for your generous support!
Dmitry in the mountains: Mikitaev's Readings conference
Dmitry Alentiev attended an annual scientific-practical conference "New polymer composites – Mikitaev's Readings" held in Kabardino-Balkaria (Russia), near Elbrus.
Dmitry gave an oral lecture on the latest advances in designing membrane materials based on vinyl-addition polynorbornenes with oxygen-containing substituents. In the lecture, he summarized the relationships between the chemical structure of these polymers and their gas transport properties found in the recent studies carried out by Norbornene lab in collaboration with the membrane center of TIPS RAS.
Noteworthy, Dmitry attends the conference for the second year in a row. It looks like a solid recommendation by one of the key team members.
Dmitry gave an oral lecture on the latest advances in designing membrane materials based on vinyl-addition polynorbornenes with oxygen-containing substituents. In the lecture, he summarized the relationships between the chemical structure of these polymers and their gas transport properties found in the recent studies carried out by Norbornene lab in collaboration with the membrane center of TIPS RAS.
Noteworthy, Dmitry attends the conference for the second year in a row. It looks like a solid recommendation by one of the key team members.
Fresh paper on polymer membranes
Long term effort of our team led to a new publication. Our article on the development of nadimides-based vinyl-addition polymers as gas separation membranes for CO2-removal was recently published in Journal of Membrane Science.
A series of racemic and chiral nadimides synthesized by Ivan Nazarov were obtained and characterized. A joint effort of our colleagues from Lab#22 (Maxim Topchiy, Andrey Asachenko) and our specialists on catalysis And polymerization (Ekaterina Medentseva, Anna Khrychikova, Evgeniya Bermesheva, Alyona Wozniak) resulted in series of new polymeric materials that have previuosly been out of reach. Thanks to TIPS RAS Membrane Center new correlations between polymer structure and its membrane properties were found. Particularly, VAP polynorbornene with fluoroaryl-groups in imides moieties exhibited the combination of high CO2 permeability with attractive CO2/N2 and CO2/CH4 selectivities.
Find out more in the full text available in the Journal of Membrane Science.
Congratulations to the whole team!
A series of racemic and chiral nadimides synthesized by Ivan Nazarov were obtained and characterized. A joint effort of our colleagues from Lab#22 (Maxim Topchiy, Andrey Asachenko) and our specialists on catalysis And polymerization (Ekaterina Medentseva, Anna Khrychikova, Evgeniya Bermesheva, Alyona Wozniak) resulted in series of new polymeric materials that have previuosly been out of reach. Thanks to TIPS RAS Membrane Center new correlations between polymer structure and its membrane properties were found. Particularly, VAP polynorbornene with fluoroaryl-groups in imides moieties exhibited the combination of high CO2 permeability with attractive CO2/N2 and CO2/CH4 selectivities.
Find out more in the full text available in the Journal of Membrane Science.
Congratulations to the whole team!
Norbornene lab goes cartoon
Nothing serious. Just a new poster portraying our team members as cartoon characters :)
You might've noticed familiar faces along with a new ones. That means we have new members to introduce. Check out the updates soon!
Credits to Fedor Andreyanov for design and patience. Yes, that work demanded loads of version to please every member :)
You might've noticed familiar faces along with a new ones. That means we have new members to introduce. Check out the updates soon!
Credits to Fedor Andreyanov for design and patience. Yes, that work demanded loads of version to please every member :)
Another project supported by RSF
We have just received a grant from Russian Science Foundation to investigate polymers based on chiral norbornenes. By the way, a portion of interesting results on the related topic is going to be out soon in the Journal of Membrane Science.
Thanks RSF for supporting our research!
Thanks RSF for supporting our research!
Norbornene lab x Harz labs
On March 31st, several members of our lab visited Harz Labs company, the leading 3D printing materials company in Russia.
Thanks to Dr. Pavel Chapala for the invitation and for hosting the visit!
Thanks to Dr. Pavel Chapala for the invitation and for hosting the visit!
New project supported
Lab 10 received funding from Russian Science Foundation (RSF) to support our work in the development of new synthetic motor oils.
Thanks to RSF for your generous support!
Thanks to RSF for your generous support!
Fresh paper in Polymer: polynorbornenes with carbocyclic substituents as porous materials
Our team has worked long on new type of polynorbornenes bearing rigid carbocyclic substituents in side chains. The results were published in Polymer journal.
Four sets of polymers from norbornene-type monomers with various carbocyclic groups were prepared to perform the structure-property study and to evaluate the effect of main- and side-chains on the porosity of resultant polymers.The obtained polymers exhibited large BET surface areas (up to 740 m2/g), while CO2 and H2 uptake reached 3.0 and 0.18 mmol/g, correspondingly. The combination of comparatively simple synthesis, high porosity and solubility in organic solvents can be considered as a key advantage of the synthesized polymers.
We're preparing another set of results on the topic. In the meantime we congratulate Maxim Zotkin on his first research paper!
Four sets of polymers from norbornene-type monomers with various carbocyclic groups were prepared to perform the structure-property study and to evaluate the effect of main- and side-chains on the porosity of resultant polymers.The obtained polymers exhibited large BET surface areas (up to 740 m2/g), while CO2 and H2 uptake reached 3.0 and 0.18 mmol/g, correspondingly. The combination of comparatively simple synthesis, high porosity and solubility in organic solvents can be considered as a key advantage of the synthesized polymers.
We're preparing another set of results on the topic. In the meantime we congratulate Maxim Zotkin on his first research paper!
New award: Moscow government prizes for young scientists
Mayor of Moscow Sergey Sobyanin awards Dmitry and our colleagues from TIPS RAS
On the 9th February, on the day of Russian Sciences, Dmitry Alentiev and Alyona Wozniak from our lab together with our colleague Andrey Asachenko were given the Prize of Moscow government.
The award was presented for the development of approaches to the synthesis of functional polynorbornenes, promising materials for membrane gas separation. That has become the result of the last 5 years of dedication to organometalic chemistry, catalysis and polymerization procedures. NHC-Pd complexes developed by Andrey Asachenko and his team made synthesis of new specific polynorbornenes simplier than ever. Alyona Wozniak's effort was focused on the assesment of catalytic activity of Pd-NHC complexes in norbornenes polymerization. A wide set of polymers based on 5-ethylydene-2-norbornene and other bifunctional monomers was obtained due to extraordinary selectivity of the new catalysts. That opened the way to a new series of polynorbornenes synthesized as a result of various post-modifications. With the help of such effective catalysts Dmitry Alentiev managed to obrain new silicon containing polynorbornenes being one of the attractive membrane materials to date.
We're proud of our colleagues.
The award was presented for the development of approaches to the synthesis of functional polynorbornenes, promising materials for membrane gas separation. That has become the result of the last 5 years of dedication to organometalic chemistry, catalysis and polymerization procedures. NHC-Pd complexes developed by Andrey Asachenko and his team made synthesis of new specific polynorbornenes simplier than ever. Alyona Wozniak's effort was focused on the assesment of catalytic activity of Pd-NHC complexes in norbornenes polymerization. A wide set of polymers based on 5-ethylydene-2-norbornene and other bifunctional monomers was obtained due to extraordinary selectivity of the new catalysts. That opened the way to a new series of polynorbornenes synthesized as a result of various post-modifications. With the help of such effective catalysts Dmitry Alentiev managed to obrain new silicon containing polynorbornenes being one of the attractive membrane materials to date.
We're proud of our colleagues.
New publication: single-component Pd-catalysts for addition polymerizationof norbornene derivatives
Our team has developed new generation of single component catalysts for vinyl-addition polymerization of norbornenes. The paper was published in ACS Catalysis.
We have shown that cationic Pd-complexes with N-heterocyclic carbene ligands and weak coordinating anion ligands are highly efficient single-component catalysts for polymerization of both norbornene and various substituted norbornenes. These complexes, being stable in the solid state and in solutions, have exhibited several important features as VAP catalysts. They are capable of catalyzing VAP of norbornenes in air and are tolerant to functional groups. The complexes have shown high catalytic activity and have allowed polymerizing monomers at very low catalyst loadings, as low as 2 ppm.
Read more in the full paper in ACS Catalysis
The work was supported by the Russian Science Foundation and the State Program of TIPS RAS.
We have shown that cationic Pd-complexes with N-heterocyclic carbene ligands and weak coordinating anion ligands are highly efficient single-component catalysts for polymerization of both norbornene and various substituted norbornenes. These complexes, being stable in the solid state and in solutions, have exhibited several important features as VAP catalysts. They are capable of catalyzing VAP of norbornenes in air and are tolerant to functional groups. The complexes have shown high catalytic activity and have allowed polymerizing monomers at very low catalyst loadings, as low as 2 ppm.
Read more in the full paper in ACS Catalysis
The work was supported by the Russian Science Foundation and the State Program of TIPS RAS.
Membranes-2022 conference
Serious scientists at the conference
Last week Dmitriy, Fedor, Max and Andrey attended a major meeting of specialists in membrane science "Membranes-2022". The conference took place in Tula region on 26-29th September.
Dmitry had oral presentation about promising membrane materials for CO2 separation based on vinyl/addition polynorbornenes bearing ester fragments in side chain. The presentation was based on Dmitry's recent paper in Journal of Membrane science.
Max also had oral presentation. His recent progress in synthesis of norbornene-based polymers with carbocyclic substituents in side chain gain much attention. The material of Max's presentation is going to be published soon.
Fedor was lucky to have a poster presentation (which was completed successfully few hours before the departure to the conference). His significant effort on membrane materials based on organosilicon derivatives of 5-norbornene-2-methanol was recently published in Polymer.
Andrey presented the results he obtained in the Kurnakov Institute of General and inorganic chemistry during his course work.
We believe the guys had a good time, as the picture shows :)
Dmitry had oral presentation about promising membrane materials for CO2 separation based on vinyl/addition polynorbornenes bearing ester fragments in side chain. The presentation was based on Dmitry's recent paper in Journal of Membrane science.
Max also had oral presentation. His recent progress in synthesis of norbornene-based polymers with carbocyclic substituents in side chain gain much attention. The material of Max's presentation is going to be published soon.
Fedor was lucky to have a poster presentation (which was completed successfully few hours before the departure to the conference). His significant effort on membrane materials based on organosilicon derivatives of 5-norbornene-2-methanol was recently published in Polymer.
Andrey presented the results he obtained in the Kurnakov Institute of General and inorganic chemistry during his course work.
We believe the guys had a good time, as the picture shows :)
Lab seminar
Marina Guseva presents her recent research progress
On June 17th our team gathered all together for the annual seminar. Main focus of the meeting laid in the recent research progress of our young collaborators.
Marina Guseva and her student Petr presented new results on exo-selective synthesis of norbornene derivatives via hydrosylilation reaction. Major questions touched the catalysts choice and possible mechanism of the reaction. Fedor Andreyanov and his younger colleague Artem reported synthesis and properties of new polymers derived from 5-norbornene-2-methanol. Maxim Zotkin shared his progress in the synthesis of norbornene derivatives bearing carbocyclic substituents - promising class of membrane materials. Ivan Nazarov and his students presented huge synthetical work on optically active norbornene derivatives and their polymerization in the presence of optically active catalysts. Vsevolod Zhigarev completed the presenters team with recent results on olefin cross metathesis reaction and synthesis of multiblock copolymers.
We're proud of our young researchers and believe you'll see the results of their effort in upcoming papers.
Marina Guseva and her student Petr presented new results on exo-selective synthesis of norbornene derivatives via hydrosylilation reaction. Major questions touched the catalysts choice and possible mechanism of the reaction. Fedor Andreyanov and his younger colleague Artem reported synthesis and properties of new polymers derived from 5-norbornene-2-methanol. Maxim Zotkin shared his progress in the synthesis of norbornene derivatives bearing carbocyclic substituents - promising class of membrane materials. Ivan Nazarov and his students presented huge synthetical work on optically active norbornene derivatives and their polymerization in the presence of optically active catalysts. Vsevolod Zhigarev completed the presenters team with recent results on olefin cross metathesis reaction and synthesis of multiblock copolymers.
We're proud of our young researchers and believe you'll see the results of their effort in upcoming papers.
New PhD in our lab
On May 19th, our team member Gleb Karpov presented his research "Synthesis of fluorine-containing norbornene derivatives and its polymerization". The main focus of the investigation was put in the synthesis of tricyclononenes bearing different organofluorune fragments. The challenging task of obtaining soluble high-molecular weight metathesis polymers was successfully reached. Classical step to the synthesis of vinyl/addition fluoropolymers wasn't that easy in this case though. However, a new vinyl/addition polynorbornene bearing perfluorophenyl groups in side chains was prepared. Moreover, the search for active Pd-based catalytic systems for the polymerization led Gleb to revealing a new type of catalysts based on Pd(0) complexes activated by organic cocatalyst. New approach inspired by organic Pd-catalyzed coupling reaction of aryl (pseudo)halides consisted a solid part of PhD thesis presented by Gleb. Gas transport and dielectric properties of the polymers were studied. The analysis of the data obtained helped us establish new correlations between polymer structure and its properties.
Well done Gleb!
Well done Gleb!
New article in Journal of membrane science
Congrats to Dmitriy Alentiev and the team! Our article on using polynorbornenes bearing cellosolve moitities for membrane gas separation was publishedon April 15th. The team revealed new relationships between polymer structure and its gas transport properties. In details, it was shown that cellosolve moieties provide facilitated transport of CO2 while ether fragments improve permeability of gaseous hydrocarbons
It took a solid time to gain the desired result, but you've made it. Great job!
To find out more about the article click the link .
It took a solid time to gain the desired result, but you've made it. Great job!
To find out more about the article click the link .
Alexander Morontsev defended his PhD Thesis
2nd PhD thesis defended by our team members during 2021.
On December 2nd, Alexander presented his research "Synthesis and Post-Modification of the Backbone of Metathesis Silicon-Substituted Polynorbornenes". The research was devoted to the development of methods for modifying double bonds of the mainchains of silicon-substituted polynorbornenes by polymer analogous reactions (such as epoxidation and gem-difluorocyclopropanation, interchain reaction of macromolecular cross-metathesis with polydienes and heterochain silicon-containing polyenes). Moreover, gas transport, thermal and other properties of the obtained polymers were examined.
It's noteworthy that it's the 2nd PhD thesis defended in less than a year by our team members.
Congrats Dr Moronthsev!
It's noteworthy that it's the 2nd PhD thesis defended in less than a year by our team members.
Congrats Dr Moronthsev!
December 22th / 2021
Overcoming COVID-19: all the researchers of our lab got vaccinated
100% of our team members are vaccinated.
Nothing is better than being safe these days. Remote work ain't the best option for a scientist. We keep going with our research having all the crew well defended against the virus.
The first one to lead the team to the total vaccination was Mr. Shorunov. It took us less than a year to have all the team vaccinated.
The first one to lead the team to the total vaccination was Mr. Shorunov. It took us less than a year to have all the team vaccinated.
Author: Gleb Karpov
Фотография: Unspalsh
Фотография: Unspalsh
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e-mail us: bmv@ips.ac.ru
