The invention discloses
diamine monomer containing
diphenylamine-
fluorene, a preparation method and the application of same in
polyimide preparation and belongs to the technical field of
organic compound preparation. The
monomer is N, N-dual (4-aminophenyl)-9, 9-dimethyl
fluorene. A synthetic method comprise the following two steps that 1, under the action of cesium
fluoride, 2 amino-9, 9-dimethyl
fluorene and p-fluoronitrobenzene are subjected to
nucleophilic substitution, and the N, N-dual (4-aminophenyl)-9, 9-dimethyl fluorene is obtained; then Pd / C serves as a catalyst and hydrazine
hydrate serves as a
reducing agent, and the N, N-dual (4-aminophenyl)-9, 9-dimethyl fluorene is obtained. According to the application, the N, N-dual (4-aminophenyl)-9, 9-dimethyl fluorene
diamine monomer is involved into reaction with various dianhydride, and
polyimide is obtained through the preparation. According to the
diamine monomer containing the
diphenylamine-fluorene, the preparation method and the application of same in
polyimide preparation, by means of the structure peculiar to the diamine monomer, obtained
polymer has good solubleness, and the unique photoelectric property is achieved; the diamine monomer and the polyimide obtained with the diamine monomer have vast application prospect in such fields as
electroluminescence, cavity transmission and
electrochromism.