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Stereoselective Synthesis and Polymerization of Exo-5-Trimethylsilylnorborneneстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 10 августа 2018 г.
- Авторы: Alentiev Dmitry A., Bermeshev Maxim V., Starannikova Lyudmila E., Bermesheva Evgeniya V., Shantarovich Viktor P., Bekeshev Valentin G., Yampolskii Yuri P., Finkelshtein Eugene Sh
- Журнал: Journal of Polymer Science, Part A: Polymer Chemistry
- Том: 56
- Номер: 12
- Год издания: 2018
- Издательство: John Wiley & Sons Inc.
- Местоположение издательства: United States
- Первая страница: 1234
- Последняя страница: 1248
- DOI: 10.1002/pola.29003
- Аннотация: Herein the stereoselective two-step synthesis of pure exo-5-trimethylsilylnorbornene is reported. The monomer proved to be highly reactive in both metathesis and addition polymerization. ROMP polymerization was catalyzed by the first-generation Grubbs catalyst. High-molecular-weight saturated addition polymers were prepared using nickel or palladium complexes as precatalysts and Na1[B(3,5-(CF3)2C6H3)4]2 and/or MAO as cocatalysts. The obtained addition polynorbornenes are highly gas permeable and microporous materials possessing large free volume and BET surface area (up to 540 m2/g). The influence of the substituent orientation (exo- vs. exo-/endo-mixture) on polymer properties was established. The metathesis polymer based on exo-isomer exhibits 1.5- to 2-fold increase of permeability coefficients for all gases in comparison to the similar polymer based on the mixture of exoand endo-isomers.
- Добавил в систему: Алентьев Дмитрий Александрович