The invention relates to organic polymers which can be crosslinked under the action of light and which are suitable for carrying out photomechanical processes. These polymers are photochemically considerably more sensitive than known comparable polymers and their sensitivity can additionally also be further increased by means of a combination with sensitisers. The molecular weight is at least 1,000. The polymers contain, as light-sensitive groups, groups of the formula I ##STR1## wherein R and R.sub.1 independently of one another denote alkyl groups with at most 4 C atoms, or R and R.sub.1 conjointly denote the remaining part of a 5-membered to 6-membered carbocyclic ring.
本发明涉及可在光的作用下交联的有机聚合物,适用于进行光机械加工过程。这些聚合物在光
化学方面比已知的可比聚合物更为敏感,其灵敏度还可以通过与敏化剂的组合进一步增加。分子量至少为1,000。聚合物包含以下光敏感基团,式I:##STR1##其中,R和R.sub.1分别独立表示最多有4个碳原子的烷基基团,或R和R.sub.1共同表示5-至6-成员的碳环的其余部分。