A cyclic carbodiimide compound which is useful as an end-sealing agent for polymer compounds. The cyclic carbodiimide compound is represented by the following formula (i):
In the above formula, X is a divalent group or a tetravalent group represented by the following formula (i-4). When X is divalent, q is 0 and when X is tetravalent, q is 1. Ar
1
to Ar
4
are each independently an aromatic group. They may be substituted by an alkyl group having 1 to 6 carbon atoms or phenyl group.
一种环状羰基胺化合物,可用作
聚合物化合物的端封剂。该环状羰基胺化合物由以下式(i)表示:在上述式中,X是由以下式(i-4)表示的二价基团或四价基团。当X为二价时,q为0;当X为四价时,q为1。Ar1至Ar4分别是独立的芳香基团。它们可以被具有1至6个
碳原子的烷基基团或
苯基取代。