▎ 摘　　要

NOVELTY - Modified graphene represented by linear formula given by Gr1-Ar1-X1- (Y1) n1, is new. The ratio (g / d) of the intensity g of the G band to the intensity d of the D band in the Raman spectroscopic spectrum is greater than or equal to 1. USE - Modified graphene for modified graphene resin composite used in modified graphene sheet, and for modified graphene dispersion used in conductive ink (all claimed). ADVANTAGE - The modified graphene has excellent conductivity and thermal conductivity, and have a functional functional group introduced on the surface. DETAILED DESCRIPTION - Modified graphene represented by linear formula given by Gr1-Ar1-X1- (Y1) n1, is new. The ratio (g / d) of the intensity g of the G band to the intensity d of the D band in the Raman spectroscopic spectrum is greater than or equal to 1. Gr1=single-layer graphene or multi-layer graphene; Ar1=an arylene group having 6 to 18 carbon atoms; X1=single bond, a linear, branched or cyclic alkylene group having 1 to 20 carbon atoms, or a linear, branched or cyclic alkylene group having 1 to 10 carbon atoms, where one or more carbon atom/s in the branched or cyclic alkylene group is -O-, -NH-, formula (I), -CO-, -COO-, -CONH-, and a group replaced by one or more structure selected from arylene groups; Y1=an atom or group that binds to carbon atom/s in Ar1, when X1 is a single bond, or atom or group bonded to a carbon atom in the alkylene group, when X1 is a linear, branched or cyclic alkylene group having 1 to 20 carbon atoms, or carbon atom in a linear, branched or cyclic alkylene group in which X1 has 1 to 10 carbon atoms is designated as -O-, -NH-, formula (I),-CO-, -COO-, -CONH-, or atom or group bonded to a carbon atom in the group, when the group is replaced with structure selected from arylene groups, or hydrogen atom, a fluorine atom, Chlorine atom, bromine atom, iodine atom, fluoroalkyl group with 1 to 6 carbon atoms, Cyan group, nitro group, acyl group, amide group, vinyl group, carboxylic acid group, Carboxylate ester group, phosphoric acid group, alkylsilyl group with 3 to 6 carbon atoms, Alkyl silyl ether group with 3 to 6 carbon atoms, and atom/s or group selected from siloxane groups; and n1= greater than or equal to 1 and Y1s may be the same group or different groups when n1 is greater than or equal to 2. INDEPENDENT CLAIMS are included for the following: (1) a method for preparing modified graphene; (2) a modified graphene resin composite, which comprises modified graphene; (3) a modified graphene sheet, which is obtained by curing or molding the modified graphene resin composite; and (4) a modified graphene dispersion, which comprises modified graphene, and water or an organic solvent.