Water Soluble and Photoactive Copolymers Containing Amidic Aryldiazosulfonate Groups

Photoactive polymers could be synthesized by copolymerization of methyl methacrylate and sodium-(4-methacryloylaminophenyl)-diazosulfonate which became water soluble at high azo content. Determination of the copolymerization parameters revealed an almost ideal copolymerization behavior of the two monomers. The photoactivity of the azo chromophore could be further increased by introduction of two methoxy substituents into the aromatic unit which renders these polymers more suitable for application as photo resins.