| 摘要 |
PURPOSE: A polyimide film is provided to have excellent solvent resistance and flexibility, and to be suitable for a transparent electrode film and a solar cell protection film. CONSTITUTION: A polyimide film comprises a repeating unit represented by chemical formula 1, and a polyimide resin represented by chemical formula 2. A manufacturing method of the polyimide film comprises: a step of copolymerizing a polymer of 2,2-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride and 2,2'-bis(trifluoromethyl)-4,4'-diaminobiphenyl, and a polymer of hydrogenated pyromellitic dianhydride and oxydianiline in an organic solvent; and a step of obtaining a poly amic acid solution, imidizing and curing the poly amic acid solution.
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