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Synthesis and gas permeation parameters of metathesis polytricyclononenes with pendant Me3E-groups (E = C, Si, Ge)статья
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: 26 сентября 2016 г.
- Авторы: Maxim Bermeshev, Boris Bulgakov, Lyudmila Starannikova, Georgii Dibrov, Pavel Chapala, Dmitry Demchuk, Yurii Yampolskii, Eugene Finkelshtein
- Журнал: Journal of Applied Polymer Science
- Том: 132
- Номер: 5
- Год издания: 2015
- Издательство: John Wiley & Sons Inc.
- Местоположение издательства: United States
- Первая страница: 41395
- Последняя страница: 42002
- DOI: 10.1002/app.41395
- Аннотация: Metathesis polytricyclononenes were synthesized via ROMP polymerization in the presence of the 1-st generation Grubbs catalyst and their gas-transport properties were studied for the first time. The aim of this work was to evaluate the influence of Me3E-groups (E = C, Si, Ge) on gas permeation parameters of ROMP materials. New metathesis poly(3-tert-butyltricyclononene-7) and poly(3-trimethylgermyltricyclononene-7) were obtained with high yields (up to 95%) and high-molecular weights (Mw∼3–7×105 g mol−1). The glass transition temperatures of the ROMP polytricyclononenes with Me3E-groups decreased when E was changed from C to Si and then to Ge. It was shown that the polytricyclononene containing Me3Si-groups has the highest gas permeability while the polytricyclononene containing Me3C-substituents has the lowest gas permeability. In addition, the gas permeation parameters were estimated for ROMP Me3Si- and Me3Ge-substituted polytricyclonona-3,7-dienes. So the influence of the second double bond in the monomer units on the permeability of the polymers obtained was studied
- Добавил в систему: Булгаков Борис Анатольевич