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Published on: February 7, 2017
Preparation and characterization of nanoporous polyimide films from triblock copolyimides
Sung-Youl Cho1, Chang-Hyung Lee, Se Young Oh
1Department of Chemistry, Yonsei University, Wonju 220-710, Republic of Korea.
Abstract:
Nanoporous polyimide films were prepared from triblock copolyimides. A thermally labile polymer, poly(propylene glycol), was incorporated into polyimides based on 4,4-(hexafluoroisopropylidene)diphthalic anhydride to obtain triblock copolyimides. Nanofoams were formed by thermolysis of the labile block. The thermal properties of the copolymers were investigated by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The nanopores were characterized by scanning electron microscopy (SEM).
