Several novel polyimide materials are disclosed. One example is apolyimide material comprising heterocyclic polyimide having an unit represented by the following general formula (1):
1
(wherein &PHgr;
1
s may be the same or different and are individually a quadrivalent organic group, the &PHgr;
1
s including at least 0.2 molar equivalent of a quadrivalent hetrocyclic group selected from the following Group (a), &PSgr;
1
s may be the same or different and are individually a bivalent organic group, and n is a positive integer).
本文公开了几种新型聚
酰亚胺材料。其中一个例子是由杂环聚
酰亚胺组成的聚
酰亚胺材料,其单元由以下通式(1)表示:
1
(其中 &PHgr;
1
s可以相同或不同,且各自为四价有机基团,&PHgr;
1
s 包括至少 0.2 摩尔当量的选自以下组别的四价杂环基团 (a),&PSgr;
1
s可以相同或不同,且各自为二价有机基团,n为正整数)。