Journal of Electroanalytical Chemistry, Vol.386, No.1-2, 189-195, 1995
Studies of the Temperature-Dependence of Charge Propagation Rates in Quaternized Poly(4-Vinylpyridine) Polymers Containing Electrostatically Bound and Coordinated Redox Sites
The activation parameters associated with charge propagation in a series of quaternized poly(4-vinylpyridine) polymers, which contained both electrostatically hound and coordinated redox sites and which were deposited as thin films on electrode surfaces, were derived from the temperature dependence of apparent charge transport diffusion coefficients. The values of the activation energies and entropies obtained are discussed in terms of models of charge transport that are appropriate for redox polymers in which physical displacements of the redox sites are either free or constrained.
Keywords:ELECTRON-EXCHANGE-REACTIONS;GRAPHITE-ELECTRODES;METAL-COMPLEXES;FILM INTERFACES;THIN-FILMS;TRANSPORT;DYNAMICS;PARAMETERS;DIFFUSION;KINETICS