Photoelectrochemistry in particulate systems. 5. Visible light‐induced polymerization of 1‐vinylpyrene in semiconductor suspensions

Abstract

Abstract Photoelectrochemical polymerization of 1‐vinylpyrene has been achieved in a semiconductor photocatalyst suspension under visible light irradiation (λ > 480 nm). Bandgap excitation of CdS, CdSe or Fe 2 O 3 led to the oxidation of 1‐vinylpyrene, which initiated the polymerization process. A 25–47% yield of poly(1‐vinylpyrene) could be obtained upon irradiation of these semiconductor photocatalyst suspensions with 1‐vinylpyrene in acetonitrile. Dependence of the polymer yield on various experimental conditions is described.