▎ 摘　　要

NOVELTY - A graphene oxide/polymer composite material is obtained by functionalizing graphene oxide with sulfonated poly(ether-ether-ketone) and a polyvinylidene fluoride polymer. USE - Graphene oxide/polymer composite material is used in gas barrier film (claimed) of electronic devices. Uses include but are not limited to electrochemical optical sensor, optoelectronic device, battery, super capacitor and hydrogen-storage device. ADVANTAGE - The graphene oxide/polymer composite material has improved mechanical strength, thermal stability and gas barrier property. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a gas barrier film, which comprises the graphene oxide/polymer composite material.