| abstract |
(57) [Summary] [Structure] An aromatic dicarboxylic acid having a phenolic hydroxyl group (for example, 2,5-dihydroxyisophthalic acid, 2, 5-dihydroxy-1,4-benzenediacetic acid, etc.) and an aromatic diamine (eg 3,4′-oxydianiline, phenylenedianiline, etc.) are polycondensed to produce an end-reactive aromatic polyamide oligomer, The resulting oligomer and a polybutadiene-acrylonitrile-based copolymer having a carboxyl group at the terminal are polymerized to produce an aromatic polyamide-polybutadiene-based block copolymer having a phenolic hydroxyl group, and this block copolymer is cinnamoyl chloride-containing. A photosensitive elastomer obtained by reacting with. [Effect] This photosensitive elastomer is excellent in thermal stability and mechanical properties as compared with conventional photosensitive resins. |