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A Theory of Microphase Separation in the Melt of Diblock Copolymers with Smectic Liquid Crystalline Side Groupsстатья
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: 18 июля 2013 г.
- Авторы: Potemkin Igor I., Bodrova Anna S.
- Журнал: Macromolecules
- Том: 42
- Номер: 7
- Год издания: 2009
- Издательство: American Chemical Society
- Местоположение издательства: United States
- Первая страница: 2817
- Последняя страница: 2825
- DOI: 10.1021/ma802365y
- Аннотация: We develop a theory of microphase separation in a melt of flexible AB block copolymers with liquid crystalline side groups (C) attached to the B block using the strong segregation approximation. Within this theory, we analyze a case when all components of the system are strongly incompatible with each other. We predict thermodynamic stability of two kinds of cylindrical structures having amorphous and liquid crystalline cores, and four kinds of lamellar structures. One of the lamellar structures includes amorphous A and B layers having perpendicular orientations (so-called A 1 B lamellae). Three other kinds have parallel orientations of the layers. Depending on the Surface tension coefficient gamma(AC) of the AC interface, either combined BAB amorphous layers alternate with the smectic ones (BAB lamellae) or pure A and B layers are segregated by the smectic ones and their sequence looks like A-B-B-A-B-B... (A-B-B lamellae) or like A-B-A-B... (A-B-A lamellae). Phase diagrams of the system are constructed. Some of the results are compared with experimental data.
- Добавил в систему: Бодрова Анна Сергеевна