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Influence of chain charge and complexation on the overlap and entanglements formation in poly(acrylic acid) salt-containing aqueous solutionsстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
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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: Litmanovich E.A., Zakharchenko S.O., Stoichev G.V.
- Журнал: Journal of Physical Chemistry B
- Том: 111
- Номер: 29
- Год издания: 2007
- Издательство: American Chemical Society
- Местоположение издательства: United States
- Первая страница: 8567
- Последняя страница: 8571
- DOI: 10.1021/jp070070t
- Аннотация: Dilute-semidilute regime crossover in aqueous solutions of partly neutralized poly(acrylic acid) and of its complex with tetradecyltrimethylammonium bromide was studied by light scattering and viscometry methods. The chain charge growth causes the decrease of overlap concentration (c*) and the increase of the entanglements formation concentration (ce), hence, the semidilute unentangled regime of solution expands. Complexation of the polyelectrolyte with an oppositely charged surfactant leads to c* increase and to ce decrease. It is shown that in semidilute entangled solutions the surfactant acts as an effective structuring agent because of the binding of polyelectrolyte chains via surfactant micelles. © 2007 American Chemical Society.
- Добавил в систему: Литманович Екатерина Аркадьевна