Eco-friendly polyimide based film and method for manufacturing the same

Abstract

One embodiment of the present invention provides an eco-friendly polyimide-based film not including a perfluoroalkyl group, which includes at least one of an imide repeating unit and an amide repeating unit, the imide repeating unit is formed by a reaction between a diamine compound and a dianhydride compound, the amide repeating unit is formed by a reaction between a diamine compound and a dicarbonyl compound, and the dianhydride compound includes at least one of a dianhydride compound having a methyl group and a dianhydride compound not having a methyl group. The polyimide-based film has a stress relaxation index calculated by Equation

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