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1 Polish Journal of Chemistry

1 2004

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Electrooxidation of Poly (p-Aminoazobenzene) Films-Kinetic Studies

Frydrychewicz A., Jackowska K.

Polish Journal of Chemistry

2004

Vol. 78 / nr 9

1523-1532

The electrooxidation of poly (p-aminoazobenzene) [poly (p-AAB)] was studied in the presence of H+ and of Fe(CN)6 4 ions by the means of cyclic voltammetry, chronoamperometry and rotating disc electrode. The diffusion coefficients and heterogeneous rate constants were determined from the analysis of Cottrell and Levich-Koutecky plots. It has been found, that the oxidation of poly (p-AAB) in acidic solution is kinetically controlled and independent of the transport of H+ ions to the polymer surface. The results obtained in the presence of Fe(CN)6 4 have shown that poly (p-AAB) films are permeable to the ions from electrolyte solution.