▎ 摘　　要

NOVELTY - Preparing high-throughput graphene oxide/polyimide matrix material comprises introducing graphene oxide into polyimide matrix which can undergo thermal rearrangement by in-situ method to obtain composite film, and then processing composite film under inert atmosphere at 250-600 degrees C for at least 0.1 hour, where polyimide is polyimide-based polymer (I) that can undergo thermal rearrangement reaction. USE - The method is useful for preparing high-throughput graphene oxide/polyimide matrix material. ADVANTAGE - The material has excellent permeation, separation performance and stable chemical structure, and solves the problems of polymer separation membrane materials having insufficient separation performance, poor anti-plasticizing ability and poor temperature resistance. DETAILED DESCRIPTION - Preparing high-throughput graphene oxide/polyimide matrix material comprises introducing graphene oxide into polyimide matrix which can undergo thermal rearrangement by in-situ method to obtain composite film, and then processing composite film under inert atmosphere at 250-600 degrees C for at least 0.1 hour, where polyimide is polyimide-based polymer of formula (I) that can undergo thermal rearrangement reaction. n = degree of polymerization; R = 4,4'-(9H-fluorene-9,9-diyl)diphenol-2,2'-diyl, 3,3-bis(4-hydroxyphenyl)isobenzofuran-1(3H)-one-2,2'-diyl, (3,7-dihydroxy-5,5,10,10-tetramethyl-4b,5,9b,10-tetrahydroindeno(2,1-a)indene-2,8-diyl), 3,3'-(5,5,10,10-tetramethyl-4b,5,9b,10-tetrahydroindeno(2,1-a)indene-2,8-diyl)bis(oxy)diphenol-2,2'-diyl, 4,4'-(diphenylmethylene)diphenol-2,2'-diyl, 3,3'-(4,4'-(diphenylmethylene)bis(4,1-phenylene)bis(oxy))diphenol-2,2'-diyl, 3,3'-(4,4'-(9H-fluorene-9,9-diyl)bis(4,1-phenylene))bis(oxy)diphenol-2,2'-diyl or 3,3-bis(4-(3-hydroxyphenoxy)phenyl)isobenzofuran-1(3H)-one-2,2'-diyl; and A1 = (perfluoropropane-2,2-diyl)dibenzene-3,3',4,4'-tetrayl, 9,9-bis(4-phenoxyphenyl)-9H-fluorene-3,3',4,4'-tetrayl, 3,3-bis(4-phenoxyphenyl)isobenzofuran-1(3H)-one-3,3',4,4'-tetrayl or bis(4-phenoxyphenyl)diphenylmethane-3,3',4,4'-tetrayl.