Synthesis and properties of a dual responsive hydrogel by inverse microemulsion polymerization

被引：1
|
作者：
TAO WAN
MIN XU
LIYI CHEN
DAQING WU
WENZHONG CHENG
RUIXIANG LI
CHUZHANG ZOU
机构：
[1] Chengdu University of Technology,State Key Laboratory of Geohazard Prevention and Geoenvironment Protection
[2] Chengdu University of Technology,Mineral Resources Chemistry Key Laboratory of Sichuan Higher Education Institutions
[3] PetroChina Sichuan Petrochemical Co.,undefined
[4] Ltd.,undefined
来源：
Journal of Chemical Sciences | 2014年 / 126卷
关键词：
Hydrogel; microemulsion polymerization; sensitivity; N-isopropylacrylamide;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A novel dual responsive hydrogel was synthesized by inverse microemulsion polymerization, using itaconic acid as pH-responsive monomer and N- isopropylacrylamide as thermo-responsive monomer. pH- and temperature-sensitivity and dynamic viscoelasticity behaviour of the dual responsive hydrogels were investigated. Dual responsive hydrogels showed remarkable pH- and temperature-sensitivity and enhanced viscoelastic behaviour under high stress. Temperature-induced shrinkage range of the dual responsive hydrogels was higher and broader than that of the conventional poly(N-isopropylacrylamide) hydrogel. FTIR revealed the structure of dual responsive hydrogels. The as-synthesized regular and sphere-like hydrogel particles had the average particle size of 49 nm in the range of 30–78 nm.
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页码：1623 / 1627
页数：4
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