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A series of 11 chiral dialkoxy substituted poly(p-phenylene vinylene)s has been synthesized to investigate the effect of the regioregularity of the substitution pattern on the chiroptical properties of these materials in thin films. Regioregularly substituted chiral PPV derivatives exhibit a strong optical activity in the π-π * transition of the polymer backbone. A marked decrease in optical...
The effects of precursor solvent on the optical properties and morphology of poly(p-phenylene vinylene) (PPV) films are investigated using X-ray diffraction, steady state absorption and fluorescence, and picosecond time-resolved spectroscopy. Precursor films spin cast from water yield PPV films with higher average crystallite size and conjugation than films cast from methanol. These changes affect...
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