| 摘要 |
<p>A process for the preparation of crosslinked polymers by heating selected polyamide-polyimide block copolymers having an average molecular weight Mn of 1,000-50,000 is described. In the compounds, at least 10 mol % of alkyl-substituted diaminodiphenylmethane groups, relative to the total amount of diamine radicals in the polyamide and polyimide blocks, are co-condensed. The uncrosslinked compounds are soluble in dipolar, aprotic solvents.</p> |
