Abstract

AbstractThe flow of an electric current through an aqueous solution of acrylamide and NaNO3, using an activated iridium electrode as anode, induces the polymerization of the monomer in solution. The influence of the chemical and electrochemical variables on monomer conversion was studied. The experimental results point to the production of initiating radicals by charge transfer between the electrolyte and the electrode, followed by desorption of these radicals from the electrode into the solution. The electrode process is a mixed process in which all the species present take part. Electrode activation depolarizes the NO discharge and increases the polymerization rate.

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