A terminally-modified polybranched polyimide which can be efficiently complexed with an inorganic material is obtained by reacting a component (a): tetracarboxylic dianhydride; a component (b): as an amine component, a mixture of a triamine and a diamine (which may be composed of a triamine only); and a component (c): as a terminal component, a compound selected from general formulae (1-1) to (1-4).
H
2
N—X—R
1
(1-1)
(In the formula, X represents a single bond or an alkylene group having 1 to 3 carbon atoms, and R
1
represents a nitrogen-containing heterocyclic group).
H
2
N—X—R
1
(1-2)
(In the formula, X is as defined above, and R
1
represents a sulfur-containing heterocyclic group or an aryl group having a thiol or thioether group in the molecule).
(In the formula, R represents a nitrogen-containing heterocyclic group).
(In the formula, R represents a monovalent residue).
通过反应组分(a):四
羧酸二酐;组分(b):作为胺组分,三胺和二胺的混合物(可以仅由三胺组成);以及组分(c):作为末端组分,从通式(1-1)到(1-4)中选择的化合物,可以获得与无机材料高效络合的终止修饰的多支化聚
酰亚胺。
H2N-X-R1(1-1)(式中,X表示单键或具有1到3个碳原子的烷基基团,R1表示含氮杂环基团)。
-X-R1(1-2)(式中,X如上定义,R1表示含
硫杂环基团或分子中具有巯基或
硫醚基团的芳基基团)。
(式中,R表示含氮杂环基团)。
(式中,R表示单价残基)。