Article
Chemistry, Inorganic & Nuclear
Pavel S. Kulyabin, Vyatcheslav V. Izmer, Georgy P. Goryunov, Mikhail I. Sharikov, Dmitry S. Kononovich, Dmitry V. Uborsky, Jo Ann M. Canich, Alexander Z. Voskoboynikov
Summary: In this study, the effects of modifications of substituents on the performance of the isospecific zirconocene-based catalyst family were systematically investigated. Novel synthetic pathways were developed to enhance the performance of the catalysts, resulting in certain zirconocenes outperforming the parent catalyst in propylene polymerization in terms of molecular weight capability and selectivity.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Multidisciplinary
Marc Devillard, Nour Nour Eddine, Marie Cordier, Gilles Alcaraz
Summary: A straightforward synthetic methodology for the preparation of photochromic siloles based on the dithienylethene motif has been developed. This method relies on an efficient palladium-catalyzed annulation reaction of a 2,3-bis(3-thienyl)-silirene with terminal alkynes in mild conditions. The reaction is functional group-tolerant and can be extended to the synthesis of photochromic polymers with different degrees of photochromic unit incorporation by adjusting the polymer/silirene stoichiometric ratio.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Organic
Guanghui Wang, Haotian Li, Yongqiang Wang, Zengzeng Li, Gang Liu, Ximei Zhao
Summary: The gold-catalyzed Si-H bond insertion reaction of 1,6-enynes with hydrosilanes allows the practical and atom-economical synthesis of bicyclo[3.1.0]hexane silanes in moderate to excellent yields. Additionally, the gold-catalyzed carbene insertion into Ge-H bonds is reported for the first time.
ORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Organic
Guanghui Wang, Haotian Li, Yongqiang Wang, Zengzeng Li, Gang Liu, Ximei Zhao
Summary: A gold-catalyzed Si-H bond insertion reaction of 1,6-enynes with hydrosilanes via cyclopropyl gold carbene intermediates is reported, allowing facile and practical synthesis of bicyclo[3.1.0]hexane silanes. Furthermore, a gold-catalyzed carbene insertion into Ge-H bonds is reported for the first time.
ORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Multidisciplinary Sciences
Julia C. Reisenbauer, Ori Green, Allegra Franchino, Patrick Finkelstein, Bill Morandi
Summary: Reliable strategies for directly editing the core skeleton of pharmaceutical lead compounds are still scarce despite recent developments in the field. This study presents a method for skeletal editing of indoles through nitrogen atom insertion, demonstrating its utility in late-stage skeletal editing of several commercial drugs.
Article
Chemistry, Multidisciplinary
Hao Xu, Shuyang Ye, Ruyan Zhao, Dwight S. Seferos
Summary: Sequence-defined synthetic oligomers and polymers offer unprecedented control over properties of materials. This study presents a novel strategy to synthesize monodisperse sequence-defined conjugated oligomers, achieving precision control over properties. The researchers successfully synthesized a series of oligomers with different monomers and sequences, and demonstrated the effect of monomer sequence on optical properties.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Cheng-Kai Xu, Guan-Wen Yang, Chenjie Lu, Guang-Peng Wu
Summary: This work reported a silicon-centered two-component catalyst that exhibits higher activity than its one-component analogue in the ring-opening polymerization of propylene oxide. The silicon atom in the catalyst shows appropriate electron density and a larger intramolecular cavity, leading to a better intramolecular synergic effect. A unique two-pathway initiation mode was proposed to explain the exceptional catalytic performance of the binary system.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Organic
Leilei Cao, Liliang Huang, Xianjun Xu, Erik V. Van der Eycken, Huangdi Feng
Summary: A novel method for the construction of nitrogen-tethered 1,6-enynes with high atom economy and exclusive chemoselectivity has been developed. Experimental studies suggest that the key step in this methodology is the alkyne-iminium ene reaction involving an intermolecular hydride transfer.
ORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Multidisciplinary
B. Mutharani, K. Behera, Y-H Chang, F-C Chiu
Summary: Designing hollow spheres (HS) structures with uniformly dispersed SiOx and surface attributes is of great interest in catalysis and energy storage applications. This study presents an ultrafast molecular polymerization strategy to fabricate uniformly dispersed SiOx/C-HS for electrocatalysis. The obtained SiOx/C-GA modified electrode shows excellent electrochemical performance for azathioprine detection, with low detection limit, high sensitivity, and good repeatability.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Matteo Lanzi, Arjan W. Kleij
Summary: This article provides an overview of recent developments in converting carbon dioxide into cyclic carbonates and their applications in polymer science. The focus is on the synthetic methods used to prepare these CO2-based synthons and the ring-opening reactions of carbonate monomers. The article also discusses future perspectives and encourages the use of recyclable carbon sources for polymer research.
CHINESE JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Xuezhen Wang, Gaofeng Li, Yan Han, Feng Wang, Jun Chu, Taotao Cai, Baoshan Wang, Zhiping Song
Summary: The study demonstrates that PPTZ as a cathode material exhibits superior electrochemical performance in dual-ion batteries, with high reversible capacity and cycling stability, attributed to its efficient synthesis and single-electron reversible redox mechanism.
Article
Chemistry, Physical
Chenyu Wang, Manman Yuan, Wenhua Shi, Xiaofang Liu, Liang Wu, Zhi-Yi Hu, Lihua Chen, Yu Li, Bao-Lian Su
Summary: The carbon nanotubes (CNTs) interconnected yolk-shell silicon/carbon anodes (YS-Si@CoNC) were prepared via the chelation competition induced polymerization (CCIP) approach. The YS-Si@CoNC anode exhibited improved performance with enhanced capacity and reversible specific capacity. The internal voids adequately alleviated the volumetric expansion and the CNTs and carbon shells provided an efficient conducting matrix to enhance the diffusion of electrons and lithium-ions. This research presents a convenient way of designing Si/C anode materials with a yolk-shell structure for high-performance LIBs.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Organic
Hui Sun, Yi Cheng, Houyun Teng, Xiaoqi Chen, Xiaokang Niu, Hao Yang, Yu-Ming Cui, Li-Wen Xu, Lei Yang
Summary: An iridium-catalyzed, directing group-enabled site selective intra- and intermolecular silylation of indoles and pyrroles with hydrosilanes has been developed under ligand-free conditions. Fine-tuning of the removable 3-alkyl-2-pyridyl directing group was crucial for achieving high yields for C2-silylated indole and pyrrole products. Scalability and further transformations of the silylation products have also been demonstrated.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Engineering, Electrical & Electronic
Soroosh Mahmoodi
Summary: This study investigates the quality of photoresist patterns spin-coated under elevated gravity conditions. The evaporation rate of photoresist solvents and the microstructure of films synthesized under different gravity conditions are measured and discussed. The results show that the etched patterns spin-coated under higher gravity field have improved resolution, which is attributed to the increased evaporation rate and changes in the crystalline structure of the photoresists.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Physical
Lijuan Shen, Ganchang Lei, Yong Zheng, Shijing Liang, Fujian Liu, Shuai Wang, Yanning Cao, Yihong Xiao, Lilong Jiang
Summary: The newly designed CNU-Br catalyst shows excellent H2S conversion efficiency, high sulfur selectivity, and outstanding stability, outperforming most reported catalysts in desulfurization reactions.
Review
Chemistry, Organic
M. L. Gringolts, K. I. Dement'ev, Kh. M. Kadiev, A. L. Maksimov, E. Sh. Finkel'shtein
PETROLEUM CHEMISTRY
(2020)
Article
Chemistry, Multidisciplinary
V. G. Lakhtin, A. I. Blagushina, N. V. Ushakov, I. B. Sokol'skayaa, I. A. Semyashkina, D. A. Efimenko, I. A. Gritskova, N. G. Komalenkova, P. A. Storozhenko
RUSSIAN JOURNAL OF GENERAL CHEMISTRY
(2020)
Article
Polymer Science
Gleb O. Karpov, Ilya L. Borisov, Alexey V. Volkov, Eugene Sh. Finkelshtein, Maxim V. Bermeshev
Article
Chemistry, Multidisciplinary
Vladimir E. Terekhov, Oleg S. Morozov, Ekaterina S. Afanaseva, Boris A. Bulgakov, Alexander Babkin, Alexey Kepman, Viktor V. Avdeev
MENDELEEV COMMUNICATIONS
(2020)
Article
Chemistry, Applied
S. S. Nechausov, A. A. Aleksanova, O. S. Morozov, B. A. Bulgakov, A. Babkin, A. Kepman
Summary: Novel dual-functional phthalonitrile monomers containing a maleimide group were synthesized and characterized, showcasing a combination of bismaleimide resins' mechanical properties and phthalonitriles' thermo-oxidative stability. The copolymerization of maleimide groups via ene reaction and ring-opening amidation allowed the formation of a polymeric system with high impact strength, flexural strength, and excellent thermal properties.
REACTIVE & FUNCTIONAL POLYMERS
(2021)
Article
Polymer Science
Yulia I. Denisova, Georgiy A. Shandryuk, Marianna P. Arinina, Ivan S. Levin, Vsevolod A. Zhigarev, Maria L. Gringolts, Eugene Sh. Finkelshtein, Alexander Ya. Malkin, Yaroslav V. Kudryavtsev
Summary: By adjusting reaction conditions, a series of multiblock copolymers with different compositions and lengths can be synthesized to study their structure, thermal properties, and mechanical properties. The results show that even nearly random copolymers can retain some crystalline structure.
Article
Engineering, Chemical
Marina A. Guseva, Dmitry A. Alentiev, Danila S. Bakhtin, Ilya L. Borisov, Roman S. Borisov, Alexey V. Volkov, Eugene Sh. Finkelshtein, Maxim V. Bermeshev
Summary: Silicon-substituted polynorbornenes are polymeric membrane materials with combined properties of glassy and rubbery polymers, showing attractive performance in CO2/N-2 separation and separation of gaseous hydrocarbons. A new synthesis approach allowed preparation of high-molecular-weight polymers based on pure exo-isomers of Si-containing norbornenes, and their gas transport properties were studied. The influence of substituent orientation and nature on membrane properties was evaluated, with additional data on BET, SEM, WAXD, and fractional free volumes reported.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Alyona I. Wozniak, Evgeniya Bermesheva, Ilya L. Borisov, Alexey V. Volkov, Dmitrii I. Petukhov, Natalia N. Gavrilova, Victor P. Shantarovich, Andrey F. Asachenko, Maxim A. Topchiy, Eugene Sh Finkelshtein, Maxim Bermeshev
Summary: The length of the alkyl side group plays a key role in the gas separation performance, with shorter side-alkyl groups leading to higher gas permeability. Surprisingly, vinyl-addition polynorbornene with methyl groups displayed both higher CO2 permeability and higher CO2/CH4 selectivity, contradicting traditional trade-offs. The solubility-controlled permeability of hydrocarbons is another notable feature, particularly in polymers with alkyl-substituents larger than ethyl-groups.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Polymer Science
V. A. Zhigarev, M. L. Gringolts, M. P. Filatova, E. Sh. Finkelshtein
Summary: The reaction of 1,3,5,7-cyclooctatetraene with silicon-substituted ethylenes was studied, resulting in the successful synthesis of a silicon-substituted monomer containing a high percentage of endo-isomer. The metathesis polymerization mediated by catalysts yielded a new polymer with bulky bicyclic fragment and predominantly trans-double bonds in the main chain.
POLYMER SCIENCE SERIES B
(2021)
Review
Polymer Science
B. A. Bulgakov, O. S. Morozov, I. A. Timoshkin, A. V. Babkin, A. V. Kepman
Summary: This review focuses on the processes of producing heat-resistant matrices for fiber reinforced plastics using phthalonitrile monomers and comonomers, and discusses polymerization behaviors with various initiators and temperature modes. It also compares the properties of glass fiber reinforced plastics (GFRP) and carbon fiber reinforced plastics (CFRP) obtained through curing of different phthalonitriles.
POLYMER SCIENCE SERIES C
(2021)
Article
Chemistry, Multidisciplinary
Vladimir E. Terekhov, Alexey A. Bogolyubov, Oleg S. Morozov, Ekaterina S. Afanaseva, Boris A. Bulgakov, Alexander V. Babkin, Alexey V. Kepman, Viktor V. Avdeev
MENDELEEV COMMUNICATIONS
(2020)
Article
Chemistry, Applied
N. V. Ushakov, E. Sh. Finkel'shtein, E. A. Grushevenko, V. V. Volkov, I. L. Borisov
RUSSIAN JOURNAL OF APPLIED CHEMISTRY
(2020)
Article
Chemistry, Multidisciplinary
M. Yakovlev, O. S. Morozov, E. S. Afanaseva, B. A. Bulgakov, A. Babkin, A. Kepman, V. V. Avdeev
RUSSIAN CHEMICAL BULLETIN
(2020)
Article
Polymer Science
Yulia I. Denisova, Alexey V. Roenko, Olga A. Adzhieva, Maria L. Gringolts, Georgiy A. Shandryuk, Alexander S. Peregudov, Eugene Sh. Finkelshtein, Yaroslav V. Kudryavtsev
Review
Polymer Science
I. A. Timoshkin, V. V. Aleshkevich, E. S. Afanas'eva, B. A. Bulgakov, A. V. Babkin, A. V. Kepman, V. V. Avdeev
POLYMER SCIENCE SERIES C
(2020)
