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[5p-PA2-20] Preparation of Polyimide Thin Films by Vapor Deposition Polymerization
Keywords:vapor deposition polymerization, PI, azo group
Polyimide (PI) thin films were prepared by vapor deposition polymerization. PI having azo group in the main chain was obtained by co-evaporating monomers of pyromellitic dianhydride and 4,4’-diaminoazobenzene. After co-evaporation, the co-depositon film was annealed at 250 degree to conduct imidization. Accoding to FT-IR spectra, formation of PI was confirmed.