Solid-State Spectroelectrochemistry of Cross-Linked Donor Bound Polymer Films

Abstract

A new electroactive material has been prepared by attaching the potassium salt of l, 3-di(p-methoxyphenyl)-5-(p-hydroxyphenyl)-Δ2-pyrazoline to cross-linked chloromethylated polystyrene resins. The polymer can be readily coated from benzene suspensions onto metallic electrodes. At these modified electrodes, electrochemical charge transfer reactions are accompanied by large optical changes as pyrazoline cations are formed through the film bulk. Studies of the electrochemical and optical changes as a function of sweep rate and time indicate that electrons are transferred between monomeric pyrazoline species, and that the polymer matrix is characterized by a considerable degree of donor site flexibility. © 1979, American Chemical Society. All rights reserved.