Synthesis and characterization of copolymers with a photosensitive group

Copolymers of 4-acryloyloxyphenyl-4' -methoxy styryl ketone with glycidyl methacrylate were prepared in methyl ethyl ketone solution using benzoyl peroxide 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 the application of the conventional linearization methods suggested by Fineman-Ross and Kelen-Tudos. The weight and number average molecular weights of the copolymers were determined by gel permeation chromatography. Thermogravimetric analysis of the copolymers was carried out in air. The glass transition temperature, T-g, of the polymers were determined by differential scanning calorimeter. The photocrosslinking properties of the copolymers were discussed. (C) 2001 EIsevier Science Ltd. Ail rights reserved.