Abstract
Hybrid polyimide films based on barium and titanium oxides were obtained by sol-gel technique using a poly(amic acid) containing nitrile groups and a soluble precursor of barium and titanium oxides. The poly(amic acid) was synthesized by solution polycondensation reaction of 4,4'-oxydiphthalic anhydride with 2,6-bis(3-aminophenoxy)benzonitrile. Hybrid polymer films were investigated by atomic force microscopy, scanning electron microscopy, thermogravimetric analysis and dynamic mechanical analyses. The nanoactuation properties of some hybrid polyimide films were also investigated.
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