▎ 摘　　要

NOVELTY - Preparing polymer grafted graphene material, comprises (i) deoxidizing the mixed solution containing graphene nanomaterials and polymer monomers, and (ii) adding an oxidative reduction initiation system to the deoxygenated mixed solution, and reacting, where the redox initiation system comprises an oxidation initiator and a reduction initiator. USE - The graphene material is useful in transistors, supercapacitors, selective permeability films and reinforcement materials (claimed). ADVANTAGE - The method: reduces the reaction temperature in the polymerization process; reduces the amount of initiator; has controllable reaction, simple post-treatment process, prepares product which has a higher molecular weight and better product uniformity, excellent temperature and salt resistance; reduces the use of organic solvents; and is environmentally friendly.