Fluorescent polyacrylonitrile with 1,8-naphthalimide side chains

The copolymerization of acrylonitrile with two polymerizable fluorescent na phthalimide dyes has been investigated. It was found that the monomeric dye s took part in the polymerization and 94-96% of initially 1 wt.-% (relative to acrylonitrile) were covalently bound in the polymer chain, and thus new fluorescent side-group copolymers were obtained. The absorption and basic photophysical characteristics of monomeric naphthalimid dyes and copolymers in dimethylformamide are reported.