Preparation method and application of polystyrolsulfon acid-grafted graphene / polyaniline conductive composite hydrogel

Abstract

The invention relates to a preparation method and application of a polystyrolsulfon acid-grafted graphene / polyaniline conductive composite hydrogel. The method comprises the steps of firstly grafting polystyrolsulfon acid on the surface of graphene oxide, and then reducing the graphene oxide; then combining static synthesis of an aniline monomer and recombination of polystyrolsulfon acid-grafted grapheme to obtain the target product polystyrolsulfon acid-grafted graphene / polyaniline conductive composite hydrogel. According to the preparation method and application of the polystyrolsulfon acid-grafted graphene / polyaniline conductive composite hydrogel provided by the invention, the polystyrolsulfon acid with a negative charge is grafted on the surface of graphene, so that not only are a dissolving property of the graphene and the distribution uniformity of the graphene and polyaniline in a composite hydrogel matrix improved, but also the effective recombination of the graphene and the polyaniline is promoted through multiple mutual effects between the polystyrolsulfon acid-grafted graphene and the polyaniline, the conductive composite hydrogel has favorable mechanical strength and electroresponsive, and has the ability of controlling molecule release under the electric stimulus.

Description

technical field

[0001] The invention relates to the technical field of functional materials, in particular to a preparation method and application of polystyrene sulfonic acid grafted graphene / polyaniline conductive composite hydrogel with electrical stimulation response. Background technique

[0002] Conductive polymer hydrogels not only have the water absorption and water retention properties of hydrogel materials, but also have the electrical properties of conductive materials, so they have good application prospects in the fields of artificial muscles, controlled release of electrical stimulation, electrochemical energy storage, and sensors. However, common conductive polymers can neither be dissolved in ordinary solvents nor can be melted due to thermal decomposition at high temperatures. Therefore, conductive polymer hydrogels with excellent water absorption and retention properties, mechanical properties and electrical properties still face huge challenges. challenge....