SYNTHESIS OF SUBSTITUTED POLY(1-VINYLPYRENE)S AND INVESTIGATION OF THEIR FLUORESCENT PROPERTIES

A series of functionalized linear poly (1-vinylpyrene) (PVP) polymers bearing substituents such as - NO2, - CHO, - NH2, - Br, and - CH = C ( CN)2, were prepared by chemical modification of PVP in solution. The d egree of substitution in PVP - CH = C (CN)2 was varied from 40% to nea rly 100% by control of the reaction conditions. The other polymers wer e partially functionalized. The UV-visible and fluorescence spectrosco py of the polymers were studied in solution. The influence of solvent polarity, excitation energy, and degree of substitution on the fluores cence of the polymers were examined.