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Manifestation of side-chain interactions in solution properties of "loose" PI-graft-PMMA molecular brushesстатья
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: 11 ноября 2019 г.
- Авторы: Yevlampieva Natalya P., Kashina Anna V., Meleshko Tamara K., Yakimansky Alexander V.
- Журнал: International Journal of Polymer Analysis and Characterization
- Том: 21
- Номер: 8
- Год издания: 2016
- Издательство: Taylor & Francis
- Местоположение издательства: United Kingdom
- Первая страница: 749
- Последняя страница: 760
- DOI: 10.1080/1023666X.2016.1217458
- Аннотация: The molecular properties of polymer brushes composed of polyimide with polymerization degree 50 and loosely grafted poly(methyl methacrylate) chains of variable length (PI-graft-PMMA) were studied by viscometry, dynamic light scattering, and equilibrium electro-optical Kerr effect methods in a diluted solution. It was established that the intrinsic viscosity and hydrodynamic dimension of PI-graft-PMMA copolymers increase when the electro-optical Kerr constant decreases with the elongation of PMMA side chains in the range of 40-110 monomer units. The observed difference in the solution properties of the copolymers was explained by their side-chain interactions in spite of a large distance between the neighboring grafting points typical of loose brushes. A strong effect of the chain rigidity and dipole structure on solution properties of the studied samples was demonstrated. The Kuhn segment lengths for PI-graft-PMMA copolymers were estimated to vary in the range 3.8-12.1nm.
- Добавил в систему: Якиманский Александр Вадимович