▎ 摘　　要

NOVELTY - Producing modified graphene involves bonding azide group to a carbon atom of a surface of graphene through a radical addition reaction based on an abstraction of a hydrogen atom from azide compound in an aqueous system. USE - Method for producing modified graphene used in modified graphene-resin composite, modified graphene sheet, and modified graphene dispersion. ADVANTAGE - The hydrogen atom can be more efficiently abstracted from the hydrazine compound, and hence the reaction efficiency can be improved by using oxidant having an oxidation potential of +0.50 V. DETAILED DESCRIPTION - Producing modified graphene involves bonding a group of formula HN=N-A1 to a carbon atom of a surface of graphene through a radical addition reaction based on an abstraction of a hydrogen atom from a compound HN=N-A1 in an aqueous system. A1=represents a group of formula -Ar1-X1-(Y1)n1; Ar1=6-18C arylene group; X1=a single bond, a linear, branched, or 1-20C cyclic alkylene group, and a group obtained by substituting carbon atom in a linear, branched or cyclic 1-20C alkylene group with structure selected from -O-, -NH-, -CO-, -COO-, -CONH-, an arylene group, or group of formula (I); Y1=an atom or group selected from H, F, Cl, Br, and I, 1-6C fluoroalkyl group, a cyano group, a nitro group, an acyl group, an amide group, a vinyl group, a carboxylic acid group, a carboxylic acid ester group, and a phosphoric acid group, 3-6C alkylsilyl group, 3-6C alkylsilyl ether group, and a siloxane group; and n1=represents an integer of 1 or more.