A polyimide resin containing a repeating structural unit represented by the following formula (1) and a repeating structural unit represented by the following formula (2), a content ratio of the repeating structural unit of formula (1) with respect to the total of the repeating structural unit of formula (1) and the repeating structural unit of formula (2) being 20 mol% or more and less than 40 mol%, and the polyimide resin satisfying predetermined conditions:
wherein R1 represents a divalent group having from 6 to 22 carbon atoms containing at least one alicyclic hydrocarbon structure; R2 represents a divalent chain aliphatic group having from 5 to 16 carbon atoms; and X1 and X2 each independently represent a tetravalent group having from 6 to 22 carbon atoms containing at least one aromatic ring.
一种聚
酰亚胺树脂,含有下式(1)代表的重复结构单元和下式(2)代表的重复结构单元,式(1)的重复结构单元与式(1)的重复结构单元和式(2)的重复结构单元总和的含量比为 20 摩尔%或以上且小于 40 摩尔%,且该聚
酰亚胺树脂满足预定条件:
其中 R1 代表具有 6 至 22 个碳原子、含有至少一个脂
环烃结构的二价基团;R2 代表具有 5 至 16 个碳原子的二价链脂肪族基团;X1 和 X2 各自独立地代表具有 6 至 22 个碳原子、含有至少一个芳香环的四价基团。