Collapse of hydrogels based on copolymers of N-isopropylacrylamide and sodium vinylsulfonate

被引：4

作者：

Kozhunova, E. Yu ^{[1
]}

Makhaeva, E. E. ^{[1
]}

Grinberg, N. V. ^{[2
]}

Burova, T. V. ^{[2
]}

Grinberg, V. Ya ^{[2
]}

Khokhlov, A. R. ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119991, Russia

[2] Russian Acad Sci, Nesmeyanov Inst Organoelement Cpds, Moscow 119991, Russia

来源：

MOSCOW UNIVERSITY PHYSICS BULLETIN | 2012年 / 67卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

hydrogels; collapse; conformational transition; thermosensitive polymers; polyelectrolytes; VOLUME PHASE-TRANSITION; POLY(N-VINYLCAPROLACTAM-CO-METHACRYLIC ACID); MICROGEL PARTICLES; AQUEOUS-SOLUTION; GELS; BEHAVIOR; COMPLEXATION;

D O I：

10.3103/S0027134912040091

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This paper describes the investigation of the behavior of polyelectrolyte thermosensitive hydrogels based on copolymers of N-isopropylacrylamide and sodium vinylsulfonate at different temperatures. The influence of ionogenic groups on the swollen gel-collapsed gel phase transition was studied by means of highly sensitive differential scanning calorimetry. It was demonstrated that the presence of ionogenic groups in the thermosensitive copolymer influences the reversibility and the amplitude of gel collapse, as well as the temperature, enthalpy, and increment of the transition heat capacity.

引用

页码：372 / 376

页数：5

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