NOVEL DIAMINE, POLYAMIC ACID, AND POLYIMIDE

摘要

To provide a novel diamine, and a polyimide precursor and a polyimide using it. A diamine represented by the formula (1):;;wherein each of X1 and X5 which are independent of each other, is a single bond or the like; each of X2 and X4 which are independent of each other, is —CH2— or the like; X3 is a C1-6 alkylene or the like; each of Y1 and Y2 which are independent of each other, is a single bond or the like; R is a C1-20 linear, branched or cyclic hydrocarbon group; and a is 0 or 1).

主权项

1: A diamine represented by the formula (1): wherein each of X1 and X5 is independently a single bond, —CH2— or —CH2CH2—, each of X2 and X4 is independently —CH2— or —CH2CH2—, X3 is a C1-6 alkylene or cyclohexylene, each of Y1 and Y2 is independently a single bond, —O—, —NH—, —N(CH3)—, —C(═O)—, —C(═O)O—, —C(═O)NH—, —C(═O)N(CH3)—, —OC(═O)—, —NHC(═O)— or —N(CH3)C(═O)—, R is a C1-20 linear, branched or cyclic hydrocarbon group, and a is 0 or 1.