| 摘要 |
<p>Oligomeric and/or polymeric radiation-reactive polyimidazole and polyimidazo pyrrolone precursors which are soluble in organic solvents, can be prepared with high purity, i.e., especially without chloride, in a simple manner if an aromatic and/or heterocyclic tetraamino compound is reacted in the presence of a carbodiimide, with an olefinically unsaturated monocarboxylic acid and a dicarboxylic acid, or with an olefinically unsaturated monocarboxylic acid and an aromatic and/or heterocyclic tetracarboxylic acid dianhydride, or with an olefinically unsaturated tetracarboxylic acid diester, in the form of an addition product of the tetracarboxylic acid dianhydride and an olefinically unsaturated alcohol. The radiation-reactive precursors prepared in this manner are suitable, for instance, for the manufacture of highly heat-resistant relief structures.</p> |
