Patent ID: 11512168

Abstract:
Provided are a hydrophilic polyamide and polyimide retaining characteristics particular to polyamides and polyimides, such as heat resistance. A polymeric compound is provided having a repeating unit represented by the following formula (1): wherein M1 and M2 each independently represent any one selected from the group consisting of a hydrogen atom, a monovalent metal atom, an alkaline earth metal atom and an ammonium ion, provided that M1 and M2 are not a hydrogen atom at the same time; X1 and X2 represent an organic group; m and n each independently represent the number of substituents; Z1 represents a hydrogen atom or an optionally substituted carbonyl group; Z2 represents an optionally substituted hydrocarbon group; Z3 represents a hydrogen atom or an optionally substituted carbonyl group; and when Z1 or Z3 is an optionally substituted carbonyl group, they optionally form a ring structure together with Z2, each independently.