Fabrication and Characterization of Hybrid Polyimide Containing Octaphenylsilsesquioxane by physical blending method
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Polyimides are one of engineering plastics with excellent thermal stability and good chemical resistance because they contain imide groups in the molecular structure. However, despite the outstanding properties, Many researchers have been trying to have better properties by using silica-based composites. Polyhedral oligomeric silsesquioxane (POSS) has silica-like core and eight or seven organic hydrocarbon groups. We prepared the hybridization of polyimide and octaphenyl-POSS with eight phenyl groups (OPS). In order to make the homogeneous dispersion of OPS in the polyimide matrix, OPS was first dissolved in NMP and then homogeneous OPS/PAA was prepared by 1,3-bis(4-aminophenoxy)benzene (TPER) and 3,3,4,4bisphenonetetracarboxylic dianhydride (BTDA). Characteristics of OPS/PI hybrid composite were analyzed by various analytical tools.