Synthesis of novel photosensitive polymers and copolymers containing cinnamic groups as pendant photoreactive functions

A general method to synthesize photocrosslinkable (co)polymethacrylates support ofpendant photosensitive cinnamate groups having the particularity to have a functionalgroup bonded on its α unsaturated carbon was developed. the cyano group was selectedas an example of functional group. homopolymers of ethyl 2- cyano-3-(4-(methacrylate)-3-methoxyphenyl)prop-2-enoate and copolymers of this last monomerwith methyl methacrylate were prepared in butanone solution at 65°c using aibn as aninitiator. they were characterized by ir, ^1h-nmr, and ^13c-nmr. compositions of thecopolymers were determined by ^1h-nmr spectroscopy. the photoreactivities of theobtained (co)polymers were examined in the solid state by irradiation of thin films.