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Synthesis and Gas-Transport Properties of Novel Copolymers Based on Tricyclononenes Containing One and Three Me3 Si-Groupsстатья
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: 18 апреля 2017 г.
- Авторы: Chapala Pavel, Bermeshev Maxim, Starannikova Ludmila, Shantarovich Victor, Gavrilova Natalia, Lakhtin Valentin, Yampolskii Yuri, Finkelshtein Eugene
- Журнал: Macromolecular Chemistry and Physics
- Том: 218
- Номер: 3
- Год издания: 2016
- Издательство: John Wiley & Sons Ltd.
- Местоположение издательства: United Kingdom
- Первая страница: 1600385
- DOI: 10.1002/macp.201600385
- Аннотация: In this work the authors report the preparation of new addition copolymers based on 3-trimethylsilyltricyclononene-7 (TCNSi1) and 3,3,4-tris(trimethylsilyl)tricyclononene-7 (TCNSi3).A number of high molecular weight copolymers are synthesized with the content of TCNSi3 units from 5 up to 20 mol% in the presence of catalyst Pd(OAc)2/[Ph3C]+[B(C6F5)4]− with the yields of 50%–80%. The obtained copolymers are amorphous. They possess large free volume elements (R3/R4) based on positron annihilating lifetime spectroscopy analysis and Brunauer–Emmett–Teller surface areaup to 640 m2 g−1. Permeability coefficients of the obtained copolymers are determined for a wide range of gases He, H2,O2, N2, CO2, CH4, C2H6, C3H8, n-C4H10. The correlation between the content of TCNSi3 units and gas permeation parameters of the resulting copolymers is explored. It is found that the introduction of TCNSi3 moieties results in the rise in gas permeability of the corresponding copolymers. Moreover, increase in TCNSi3 content in the copolymer leads to an increase of gas permeability.
- Добавил в систему: Чапала Павел Петрович