| 초록 |
In this study, colorless polyamic acid (CPAA) was synthesized with (hexafluoroisopropylidene) diphthalic anhydride (6FDA) and 3,3'-Diaminodiphenyl sulfone (3DDS). Crosslinking and imidization of CPAA by cycloaliphatic epoxy-functionalized oligosiloxanes (CEOS) was prepared by reaction of epoxy rings with carboxylic acid groups. Their properties have been verified by FT-IR, thermogravimetric analysis (TGA), scanning probe microscopy (SPM) and scanning electron microscopy (SEM). The chemical resistance of the hybrid polyimide was confirmed by dropping the organic solvent on the surface of the film, and the transparency of the film in the visible region was improved compared with the original CPI film. The 1: 2 molar ratio of CEOS and CPAA hybrid materials showed the highest thermal stability and chemical resistance. |
