An inorganic–organic double network hydrogel of graphene and polymer

Abstract

An inorganic–organic double network (DN) hydrogel of graphene and poly(acrylic acid) (PAA) has been prepared by a two step synthesis. At first, reduced graphene oxide hydrogel (rGO) was prepared by a reduction-induced in situ self-assembly, and then acrylic acid monomer was adsorbed into the first network and was polymerized therein to form a second PAA network. The as-prepared rGO–PAA DN hydrogel shows both elasticity and electrical conductivity, and has potential application as a flexible conductive material for the next generation of electric devices.