The effect of solvent composition on swelling and shrinking properties of poly(acrylamide-co-itaconic acid) hydrogels

被引：32

作者：

Çaykara, T ^{[1
]}

Dogmus, M ^{[1
]}

机构：

[1] Gazi Univ, Fac Art & Sci, Dept Chem, TR-06500 Besevler, Ankara, Turkey

来源：

EUROPEAN POLYMER JOURNAL | 2004年 / 40卷 / 11期

关键词：

poly(acrylamide-co-itaconic acid); hydrogels; swelling equilibrium; shrinking kinetics;

D O I：

10.1016/j.eurpolymj.2004.06.024

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The peculiarities of the equilibrium swelling ratio and swelling shrinking kinetics of polyelectrolyte copolymeric hydrogels consisting of acrylamide and itaconic acid (AAm/IA) have been studied in water/nonsolvent (acetone, methanol, ethanol and 1-butanol) mixtures as a function of solvent composition and IA content in the hydrogel. The phase transition of these hydrogels was generated by changing the solvent composition by progressive substitution of water by the nonsolvent. For all P(AAm/IA) hydrogels, the form of the shrinking curves was determined to be strongly dependent on the type of the nonsolvent used. The rate of shrinking of these hydrogels increased in the order 1-butanol < ethanol < methanol < acetone. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：2605 / 2609

页数：5

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