A composition for preparing an article including a polyimide or poly(imide-amide) copolymer, the composition including (1) a solution including at least one of (i) a polymer including at least one selected from a structural unit represented by Chemical Formula 1 and a structural unit represented by Chemical Formula 2; and (ii) a copolymer including at least one selected from a structural unit represented by Chemical Formula 1 and a structural unit represented by Chemical Formula 2, and a structural unit represented by Chemical Formula 3, and (2) a metallic salt dissolvable in the solution of the polymer and/or the copolymer, the metallic salt being a salt of a metal selected from Group 1, Group 11, Group 13, and Group 14 elements:
wherein in Chemical Formulae 1 to 3, A, B, D, and E are the same as defined in the detailed description.
一种用于制备包括聚
酰亚胺或聚(
亚胺-酰胺)共聚物的制品的组合物,该组合物包括(1)一种溶液,该溶液包括(i)聚合物中的至少一种,该聚合物包括从
化学式1代表的结构单元和
化学式2代表的结构单元中选出的至少一种;(2) 可溶解在聚合物和/或共聚物溶液中的
金属盐,
金属盐是选自第 1 族、第 11 族、第 13 族和第 14 族元素的
金属盐:
其中
化学式 1 至 3 中的 A、B、D 和 E 与详细说明中的定义相同。