Electrogeneration kinetics of polyaniline in the presence of lithium perchlorate

Polyaniline (Pani) was electrogenerated potentiostatically (1 V vs Ag/Ag+) in acid aqueous medium (2 M HNO3) in the presence of LiClO4 on Pt electrode s. The kinetic equation of the polymerization process was calculated by mea ns of the electrochemical data of the polymerization charge (Q(pol)), deter mined as R-p = [E](0.14) [M](2). Furthermore, the number of electrons consu med per monomer unit incorporated in the oxidated polymer was determined. T he results show that the electrolyte has practically no effect on the react ion kinetics at the concentrations tested, but that it is, moreover, the tr iggering factor for fewer electrons to be incorporated into the polymer cha in.