Polypyrrole Composites: Electrochemical Synthesis, Characterizations and Applications

Abstract

Electropolymerization 132 from the monomer forming a radical cation-rich solution near the electrode in several steps.Details of steps involved are given in Scheme 1. Scheme 1.The propagation continues via the same sequences: oxidation, coupling, deprotonation until the final polymer product is formed (Fig. 1a).The electropolymerization does not give the neutral nonconducting polymer but its oxidized conducting form (doped).The final polymer chain, in fact, carries a positive charge every 3-4 Py units, which is counter balanced by an anion.The structure of the doped polymer can be given as shown in Fig. 1b.www.intechopen.com