Synthesis and characterization of copolymers with a photosensitive group

Copolymers of 4-acryloyloxyphenyl-4' -methoxy styryl ketone with glycidyl m ethacrylate were prepared in methyl ethyl ketone solution using benzoyl per oxide as initiator at 70 degreesC. All the copolymers were characterized by UV, IR, H-1-and C-13-NMR spectra. Their compositions were determined by H- 1-NMR technique. The reactivity ratio of the monomers were determined by th e application of the conventional linearization methods suggested by Finema n-Ross and Kelen-Tudos. The weight and number average molecular weights of the copolymers were determined by gel permeation chromatography. Thermograv imetric analysis of the copolymers was carried out in air. The glass transi tion temperature, T-g, of the polymers were determined by differential scan ning calorimeter. The photocrosslinking properties of the copolymers were d iscussed. (C) 2001 EIsevier Science Ltd. Ail rights reserved.