Elsevier

Synthetic Metals

Volume 26, Issue 1, 1 October 1988, Pages 79-88
Synthetic Metals

Electrochemical control of the morphology, adherence, appearance and growth of polypyrrole films

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Abstract

The influence of the electrochemical method employed to electrogenerate polymer films on morphology, appearance and adherence to a platinum electrode was studied. The use of a potential step, or cyclic voltammetry and square waves of potential at different frequencies, respectively, allows one to obtain a dendritic structure, with low adheence and presence of supporting electrolyte between the polymer and the metal, or flat, shiny, homogeneous and extremely adherent polymer films. Variations in height or width of the potential steps, and limits of the potential sweeps and sweep rate allowed the physical properties of the layer to be controlled progressively.

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    Industrial applications of this work are protected by Spanish patent no. E 87 03162.

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