LIGHT-EMITTING POLYMERS WITH PENDANT CHROMOPHORIC GROUPS .2. POLY[STYRENE-CO-(P-(STILBENYLMETHOXY)STYRENE)]

A new fluorescent polystyrene derivative is reported in which a stilbe ne-based chromophoric pendant group is attached on average to each thi rd monomeric unit. Poly[styrene-co-(p-(stilbenylmethoxy)styrene)] show ed fluorescence emission from intra- and interchain interaction. The m odel compound p-((p-ethylphenoxy)methyl)stilbene is the first stilbene derivative to show aggregate emission in solution at room temperature reported to date. It is proposed that the emission originates from th e association of chromophores in the ground state forming a fluorescen t dimer or aggregate complex.