Abstract

The electrochemical behaviour of N-benzylaniline polymerization is determined by the nature of the electrolyte. The voltammograms for a poly- N-benzylaniline modified Pt electrode prepared in l M HCl (abbreviated to PBAn(HCl)), and 1 M H 2SO 4 (PBAn(H 2SO 4)) tested in1 M hydrochloric, sulfuric, and perchloric acid were almost superimposable. The polymer film electrode prepared in 1 M HClO 4 (abbreviated to PBAn(HClO 4)) is electroinactive, and exhibits only charging behaviour in 1 M HClO 4 solution and can be activated in hydrochloric or other acid electrolytes with a smaller anion. These interesting phenomena are explained in terms of the anions catalyzing the loss of benzyl groups.

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