申请人:NISSAN CHEMICAL INDUSTRIES, LTD.
公开号:US10023530B2
公开(公告)日:2018-07-17
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).
提供一种新型二胺、一种聚酰亚胺前体和一种使用该二胺的聚酰亚胺。由式(1)表示的二胺:
其中相互独立的 X1 和 X5 各为单键或类似物;相互独立的 X2 和 X4 各为-CH2-或类似物;X3 为 C1-6 亚烷基或类似物;相互独立的 Y1 和 Y2 各为单键或类似物;R 为 C1-20 直链、支链或环状烃基;a 为 0 或 1)。