Abstract: A new polymer was obtained by linear addition polymerization of N,N-diepoxypropyla-niline with piperazine. Some photosensitive systems can be formed from the polymer with polyhalides and can be photocolorized and photocured simultaneously upon irradiating with near UV(300-400 nm). The minimum quantity of exposure energy required for photocuring these systems is 78mJ·cm-8. The absorption peak of the chromophore increases with increasing exposure time and moves from 660 nm to 650 nm. The blue-green image obtained upon irradiating can be developed by dilute acid-water solution. The thioxanthone compounds are used as very effective sensitizers for the systems.

Key words: additive polymerization, photocure, photocolorate, piperazine, N,N-diepo-xypropylaniline