Interaction of ampholyte dendrimers with network polycations and polyanionsстатья
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:
Rogacheva V.B.a ,
Panova T.V.a ,
Bykova E.V.a ,
Zezin A.B.a ,
Joosten J.b. ,
Brackman J.b.
Журнал:
Polymer Science, Series A
Том:
51
Номер:
3
Год издания:
2009
Издательство:
Pleiades Publishing, Ltd
Местоположение издательства:
Road Town, United Kingdom
Первая страница:
242
Последняя страница:
249
DOI:
10.1134/S0965545X0903002X
Аннотация:
The interaction of polyampholyte propylenimine dendrimers of five generations containing peripheral carboxyl and inner tertiary amino groups with lightly crosslinked highly swelling polyelectrolyte gels has been studied. It has been shown that the polyampholyte dendrimers of all five generations are efficiently sorbed by a polyanion sulfur-containing hydrogel (below the isoelectric point) and a polyamine hydrogel (above the isoelectric point) to give rise to interpolyelectrolyte complexes. The composition of interpolyelectrolyte complexes and the equilibrium concentration of the dendrimer in the surrounding solution are appreciably affected by the pH of the medium. Amount of zwitterion pairs in a dendrimer molecule significantly influence the formation of interpolymer salt bonds. The polyampholyte dendrimer can pass from an anionic hydrogel to a cationic one upon a small change in pH near the isoelectric point. © 2009 Pleiades Publishing, Ltd.
Добавил в систему:
Зезин Александр Борисович