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A detailed investigation into the gas permeation properties of addition-type poly(5-triethoxysilyl-2-norbornene)статья
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: 14 сентября 2017 г.
- Авторы: Belov N., Nikiforov R., Starannikova L., Gmernicki K.R., Maroon C.R., Long B.K., Shantarovich V., Yuri Yampolskii
- Журнал: European Polymer Journal
- Том: 93
- Год издания: 2017
- Издательство: Pergamon Press Ltd.
- Местоположение издательства: United Kingdom
- Первая страница: 602
- Последняя страница: 611
- DOI: 10.1016/j.eurpolymj.2017.06.030
- Аннотация: Poly(5-triethoxysilyl-2-norbornene) was prepared in good yield (71%) by vinyl-addition polymerization using the catalyst trans-Ni(C6F5)2(SbPh3)2. This polymer is completely amorphous and has a high glass transition temperature (325 °C). Investigation of its gas permeation parameters revealed that it has relatively high gas permeability for a variety of gases (e.g. P(O2) =211 Barrer). A unique feature of poly(5-triethoxysilyl-2-norbornene) is that it is a glassy material that exhibits solubility controlled permeation of hydrocarbons, a feature that is commonly only found in rubbery polymers and polymers with extremely large free volume (e.g. poly[(trimethylsilyl)propyne]. The permeability coefficient of butane in this polymer (P(C4H10)) is as high as 5 ×103 Barrer, whereas its butane/methane selectivity (P(C4H10)/P(CH4)) is 21 ± 3. Analysis of poly(5-triethoxysilyl-2-norbornene)'s permeability coefficients, diffusion coefficients, solubility coefficients, and free volume demonstrate that this polymer combines the attractive properties of both a rubbery polymer and a glassy polymer.
- Добавил в систему: Ямпольский Юрий Павлович