- - - COMPOSITION FOR PREPARING POLYIMIDE OR POLYIMIDE-AMIDE COPOLYMER POLYIMIDE OR POLYIMIDE-AMIDE COPOLYMER ARTICLE INCLUDING POLYIMIDE OR POLYIMIDE-AMIDE COPOLYMER AND DISPLAY DEVICE INCLUDING THE ARTICLE

摘要

The present invention relates to a composition for manufacturing at least one of a polyimide and a poly(imide-amide) copolymer comprising at least one of a polyamic acid and a poly(amic acid-amide) copolymer and at least one of a carbodiimide derivative and a carbodiimidazole derivative, a polyimide or poly(imide-amide) copolymer comprising a cross link by an amid bond between polymer chains manufactured by the composition, and a molded article and a display device comprises the same. The polyimide or poly(imide-amide) copolymer according to an embodiment, can maintain an optical characteristic by cross-linking defects between polymer chains due to an amid bond and mechanical properties can be improved.