sigma-'Dimers ' - Key Intermediates and Products during Generation and Redox Switching of Conjugated Oligomers and Polymers

摘要

Although the physics and chemistry of conducting polymers have been studied for almost twenty years,a large number of phenomena are not well understood.This may be due to the fact that theories and models borrowed from solid-state inorganic systems and macromolecular chemistry are often used to interpret the experimental data.One consequence of this practice is the application of the bipolaron model to conducting polymers.Another is that the mechanism of their electropolymerization has been described in terms of a classical chain propagation process in which monomers are attached step by step to a growing chain.