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Industrial polypyrrole electrodeposition on zinc-electroplated steel

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Abstract

Polypyrrole films were electrodeposited on zincated surfaces in a one-step process from aqueous solutions of sodium salicylate and pyrrole. This electrolyte passivates the substrate and makes it possible to obtain strongly adherent PPy films with controlled thickness by electrolysis at constant current. With a view to industrial application for rapid polymerization on common metals, an aqueous solution of 2 M sodium salicylate and 0.5 M pyrrole at pH 5 and room temperature provides optimum conditions. Laboratory studies and deposition with a pilot cell show that 2 μm of polymer can be deposited in 1 s with a current density of 70 A dm−2.

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Authors and Affiliations

  1. associé au CNRS (UPRES-A 7086), Institut de Topologie et de Dynamique des Systèmes de l'Université Paris 7-Denis Diderot, 1 rue Guy de la Brosse, 75005, Paris, France

    E. Hermelin, J. Petitjean, S. Aeiyach, J.C. Lacroix & P.C. Lacaze

  2. USINOR – Recherche et Développement – LEDEPP, 17 Avenue des Tilleuls, BP 70011, 57191, Florange Cedex, France

    J. Petitjean

Authors
  1. E. Hermelin
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  2. J. Petitjean
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  3. S. Aeiyach
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  4. J.C. Lacroix
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  5. P.C. Lacaze
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Hermelin, E., Petitjean, J., Aeiyach, S. et al. Industrial polypyrrole electrodeposition on zinc-electroplated steel. Journal of Applied Electrochemistry 31, 905–911 (2001). https://doi.org/10.1023/A:1017550922578

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  • DOI: https://doi.org/10.1023/A:1017550922578

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