A conductive hydrogel by poly(sodium acrylate)/montmorillonite superabsorbent composite

作者:Xie Yiming; Wu Jihuai*; Lin Jianming; Wei Yuelin; Zhong Jinfeng
来源:Polymers and Polymer Composites, 2007, 15(1): 29-33.

摘要

Poly(sodium acrylate)/montmorillonite superabsorbent composite was synthesised by an inverse suspension polymerisation method. A novel hydrogel electrolyte with conductivity of 100 mS.cm(-1) was prepared by immersing the superabsorbent composite in 1 M KCl aqueous solution. The conductivity of the hydrogel electrolyte was investigated, and it was found that the hydrogel electrolyte exhibits liquid-like ionic conductivity. The conductivity depends mainly on the ionic intensity of the solution in which it is immersed and on the water absorbency of the superabsorbent.