聚丙烯酸盐／聚苯胺导电水凝胶的合成研究  

Study on synthesis of polyacrylate/polyaniline conducting hydrogel

作　　者：唐群委[1] 吴季怀[1] 林建明[1] 

机构地区：[1]华侨大学材料物理化学研究所,福建泉州362011

出　　处：《功能材料》2007年第A09期3391-3395,共5页Journal of Functional Materials

基　　金：福建省新材料与器件重大专题（2004HZ01-3）;福建省重大科研项目（2002H002）

摘　　要：采用两步水溶液聚合法使被吸收到聚丙烯酸盐高吸水性聚合物网络内部的苯胺单体原位聚合制备电导率为2．33mS·cm^-1的聚丙烯酸盐／聚苯胺导电水凝胶。建立了一维聚苯胺链与三维聚丙烯酸盐网络互穿的结构模型，对载流子（质子）沿聚苯胺链传导的机制进行了探讨。该新型导电水凝胶具有明显的pH敏感性，在pH为4～6和pH〉12处出现两个尖峰。Polyacrylate/polyaniline polymer was synthesized by a two-steps aqueous polymerization method, which aniline monomer was absorbed in the network of polyacrylate and followed by a polymerization reaction between aniline monomers. The poly（acrylate-aniline） hydrogel possessed a conductivity of 2.33 mS·cm^-1. An interpenetrating network structure model with a three-dimensional network of polyacrylate and a one-dimensional chain of polyaniline for polyacrylate/polyaniline conducting hydrogel was proposed, and a conduction mechanism with charge carriers （protons） hopping along the polyaniline chain was suggested. The polyacrylate/polyaniline hydrogels have predominant pH-sensitive property. The hydrogel shows two sharp water absorbent peaks at pH 4-6 and pH〉 12.

关 键 词：导电水凝胶 高吸水性聚合物 聚丙烯酸盐 聚苯胺 

分 类 号：TQ171[化学工程—玻璃工业]