Study On Properties Of Triarylamine Type Polymers / Aggregates Regulated By Supramolecular

The formation of supramolecular controlled polymers/aggregates allows the functional units to be assembled in order to provide a new idea for improving the performance of materials.It is of great significance in basic research and material application.In this paper,aromatic amine-based polymers/aggregates with polyisocyanine as the main chain and 1,3,5-benzenediamidyl as building blocks were designed and synthesized.The self-assembly properties of two triarylamine-1,3,5-benzenetricarboxamide derivative and the feasibility of using them as hole transporting materials were investigated.The triarylamine derivatives were linked to the polyisonitrile skeleton modified by chiral amino acid to synthesize the triarylamine derivative modified polyisonitrile monomer(S)-N-(3-((4-(bis(4-(dodecyloxy)phenyl)amino)phenyl)amino)propyl)-2- isocyanato propionamide and its intermediates.The structure was determined by nuclear magnetic resonance(NMR)spectroscopy and mass spectrometry.Two triarylamine-trimellitrylamide derivatives based on the homo-benzoamide core and the triarylamine arms with hole transport properties were synthesized:N~1,N~3,N~5-tris(3-((4-(diphenylamine)phenyl)amino)propyl)benzene-1,3,5-trimethamide and N~1,N~3,N~5-tris(3-((4-(bis(4-(dodecyloxy)phenyl)amino)phenyl)amino)propyl)benzene-1,3,5-trimethamide,the structure of intermediates and two triarylamine-trimellitic amide derivatives was determined by NMR spectroscopy and mass spectrometry.The self-assembly properties of two triarylamine-trimellitic amide-based molecules were studied.It was found that both molecules could form self-assembled aggregates in organic solvent.We also studied the light-induced assembly of two molecules in chlorinated hydrocarbon solvents.It was found that the self-assembled morphology of the compounds changed under the excitation of visible light.Thehole-transportingpropertiesoftwotriarylamine-1,3,5-benzenetricarboxamide molecules were studied.It was found that the energy levels of the two molecules were matched with the device requirement,but the film formed was poor.