A composition of terminal-modified imide oligomers is disclosed. The composition comprises a flexible terminal-modified imide oligomer (A) and a rigid terminal-modified imide oligomer (B). The flexible terminal-modified imide oligomer (A) is selected from specific oligomers (I) and (II). The rigid terminal-modified imide oligomer (B) is selected from specific oligomers (III) and (IV). The oligomer (I) is formed from biphenyltetracarboxylic acid or its derivative, an aromatic diamine compound (a) and an unsaturated monoamine compound or an unsaturated carboxylic acid or its derivative. The oligomer (II) is formed from biphenyltetracarboxylic acid or its derivative and an unsaturated monoamine compound. The oligomer (III) is formed from biphenyltetracarboxylic acid or its derivative, an aromatic diamine compound (b) and an unsaturated monoamine compound or an unsaturated carboxylic acid or its derivative. The oligomer (IV) is formed from pyromellitic acid or its derivative, an aromatic diamine compound (c) and an unsaturated monoamine compound or an unsaturated carboxylic acid or its derivative. The aromatic diamine compound (a) has two or more aromatic rings which are combined with each other directly or by a divalent group consisting of one, two or three atoms. The aromatic diamine compound (b) has only one aromatic ring or condensed ring. The aromatic diamine compound (c) may have two or more aromatic rings as is defined in the compound (a), or may have only one aromatic ring or condensed ring as is defined in the compound (b).
本发明公开了一种端基改性
亚胺低聚物组合物。该组合物包括柔性末端改性
亚胺低聚物(A)和刚性末端改性
亚胺低聚物(B)。柔性末端改性
亚胺低聚物(A)选自特定的低聚物(I)和(II)。刚性末端改性
亚胺低聚物(B)选自特定低聚物(III)和(IV)。低聚物(I)由
联苯四
羧酸或其衍
生物、芳香族二胺化合物(a)和不饱和一元胺化合物或不饱和
羧酸或其衍
生物形成。低聚物(II)由
联苯四
羧酸或其衍
生物和不饱和一元胺化合物形成。低聚物(III)由
联苯四
羧酸或其衍
生物、芳香族二胺化合物(b)和不饱和一元胺化合物或不饱和
羧酸或其衍
生物形成。低聚物(IV)由
吡咯烷
酮酸或其衍
生物、芳香族二胺化合物(c)和不饱和一元胺化合物或不饱和
羧酸或其衍
生物形成。芳香族二胺化合物(a)具有两个或两个以上的芳香环,这些芳香环直接或通过由一个、 两个或三个原子组成的二价基团相互结合。芳香族二胺化合物(b)只有一个芳香环或缩合环。芳香族二胺化合物(c)可以有两个或两个以上的芳香环,如化合物(a)中所定义的,也可以只有一个芳香环或缩合环,如化合物(b)中所定义的。