Etudes Éléctrochimiques De La Réactivité De Quelques Composes 1,2-dithioliques : Co-polymerisation Avec L’aniline Et Interaction Avec Des Métaux.

Résumé: At the time of aniline electopolymerization in medium water/organic solvent (mixed) on in electrode a platinum (Pt) or vitreous carbon (CV) with disc rotating or stationary in absence and in the presence of the cyclic dithiolics a very significant variation of the quantity electricity consumed. We were mainly interested in studying the antiradical effect of some cyclic dithiolics towards the radical electropolymerization of aniline. We studied by cyclic voltammetry the polymerization of the aniline in mediums mixed without and in the presence of these substrates. These compounds present a notable action on the kinetics of aniline polymerization and on of the structure copolymers obtained. The latter were analyzed and observed by scanning electron microscopy. The electrodeposition of some metals and their effects on the electrochemical behaviors of the compounds dithiolic, was studied in homogeneous mediums. The cyclic voltammetry, of the dithiols in the presence of metallic ions confirms the influence these ions on the electrochemical behaviors of these compounds. This modification of electrochemical behavior of various compounds dithiolethiones in presence of the metallic ions is ascribable to the formation of a complex metal/dithiolethione. The synthesized compounds were characterized by various methods of analysis (NMR, IR).

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