申请人:——
公开号:US20020182536A1
公开(公告)日:2002-12-05
A polyimide having a repeating unit of the general formula (I) and a polyamic acid having a repeating unit of the formula (IV):
1
(wherein, R
1
and R
2
represent H or a C1 to C20 alkyl group, and Z represents a condensed polycyclic aromatic group or an group of the following formulae:
2
Herein, X represents —CO— or —C(═N
2
)—, Y represents a direct bond, —CH
2
—, —O—, —SO
2
—, —S—, —CO— or —C(═N
2
)—, and W represents a direct bond, —CH
2
—, —C(CH
3
)
2
—, —C(CF
3
)
2
—, —S—, —SO—, —SO
2
— or —O—. b, m and n are 0 or 1; r is a C1 to 4 alkyl group, halogen group or phenyl group; a is 0 or 1 to 3.).
具有通式(I)重复单元的聚酰亚胺和具有通式(IV)重复单元的聚酰胺酸:1(其中,R1和R2代表H或C1至C20烷基,Z代表缩聚的多环芳族基或以下式的基团:2,其中,X代表—CO—或—C(═N2)—,Y代表直接键,—CH2—,—O—,—SO2—,—S—,—CO—或—C(═N2)—,W代表直接键,—CH2—,—C(CH3)2—,—C(CF3)2—,—S—,—SO—,—SO2或—O—。b,m和n为0或1;r为C1至4烷基,卤素基或苯基;a为0或1至3。)