POLY(AMIDE-IMIDE) COPOLYMER, COMPOSITION FOR PREPARING POLY(AMIDE-IMIDE) COPOLYMER, ARTICLE INCLUDING POLY(AMIDE-IMIDE) COPOLYMER, AND DISPLAY DEVICE INCLUDING THE ARTICLE

摘要

A poly(amide-imide) copolymer that is a reaction product of a diamine represented by Chemical Formula 1, a diamine represented by Chemical Formula 2, a dicarbonyl compound represented by Chemical Formula 3, and a tetracarboxylic acid dianhydride represented by Chemical Formula 4:; ;wherein, in Chemical Formulae 1 to 4, L¹, R¹ to R³, R¹⁰, R¹² , R¹³, a, b, c, d, A, X, n7 and n8 are the same as defined in the specification.