HYDROPHOBIC COATINGS AND SYNTHESIS BY ELECTROCHEMICAL REDUCTION OF SULFONIUM COMPOUNDS

摘要

Nonpolymeric hydrophobic coatings are applied to solid electroconductive articles used as cathodes in an electrolysis system by subjecting a solution of a sulfonium salt in a predominantly aqueous electrolysis solvent to an electrical potential sufficient to reduce the sulfonium salt. Water is the preferred solvent. In example, iron is coated with a grease by the electrochemical reduction of p-dodecylbenzyldimethylsulfonium chloride in aqueous solution at a cathode potential (reducing potential) of -1.0 volts versus a standard calomel electrode; the grease being a mixture of p,p'-bis(dodecyl)bibenzyl and p-dodecyltoluene.