Synthesis and photophysical properties of polymerizable 1,8-naphthalimide dyes and their copolymers with styrene

Two highly fluorescent 4-alkylamino-N-allyl-1,8-naphthalimide dyes have been synthesised and their basic photophysical properties in ethanol and toluene solution have been determined. Synthesis and characterization of new side-group copolymers of styrene with the fluorescent 1,8-naphthalimide have been described. It has been established that 0.90¯0.92% of the dyes are chemically bonded to the polymer chain. The absorption and fluorescent characteristics of copolymers in toluene and in the solid state are discussed.