There is relatively little research about the simultaneous electropolymerization of porphyrins and aniline derivatives in aqueous media. Normally, the copolymerization studies are focused in the polymerization of two conducting monomers without a redox metal center. It is interesting to study a probable synergic effect among very different species as metalled porphyrins and aniline derivatives. The synergic effect of a real co-polymerization would affect the electrochemical and mechanical properties. Electropolymerization of p-tetra-aminophenyl porphyrin of cobalt (II), polyCoTAPP, generates thin and fragile films that "crystallize" on some electrode surfaces in aqueous media. They are very electroactive but unstable in aqueous media. On the other hand, the electropolymerization of o-phenylenediamine, PoPD, generates stable and thick films with electroactivity to some reduction reactions and without redox response in the positive range between ca. 0.0 and 0.8V vs Ag/AgCl. In this research we electropolymerize both species dissolved in acid aqueous media obtaining a new film that has different properties compared to the homopolymers. Raman and XPS studies demonstrate the copolymerization and the synergic effect on the growing of the film.
|Número de páginas||13|
|Publicación||International Journal of Electrochemical Science|
|Estado||Publicada - 20 dic 2012|
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