Electropolymerization of N,N'-Diphenylguanidine in Non-Aqueous Aprotic Solvents and Alcohols

Abstract

Electrooxidation of N,N’-diphenylguanidine (1,3-diphenylguanidine) was investigated in aprotic (acetonitrile, acetone, dimethyl sulfoxide, dimethyl formamide, propyleneoxide, nitromethane) and alcoholic (methanol, ethanol, 1-propanol, 1-butanol, 1-pentanol, benzyl alcohol) non-aqueous solvents at platinum electrode with cyclic voltammetry. Its concentration was 5 mM in most cases. In acetonitrile and acetone a sharp voltammetric peak appeared around 1 V vs. reference and currents measured in the subsequent scans showed that the electrode fouled quickly. In dimethyl formamide, the anodic peak heights decreased slowly in the subsequent scans but in dimethyl sulfoxide weak deactivation could be observed both in smaller and in higher concentration. In alcohols, continuous deactivation could be also observed during electrooxidation of N,N’-diphenylguanidine. The permeability studies showed that the structure of the formed polymer films varied significantly according to the solvent used for electrodeposition.

Anion Effect on the Electropolymerization Reaction of Metanil Yellow in Aqueous Media and Characterization of Polymer Films

“…It is mainly true for polyaniline which has diverse applications [30]. On the other hand, in our earlier works [31,32] we demonstrated that organic compounds bearing amino groups can be easily oxidized electrochemically. Preliminary voltammetric studies of the sulphonate ions show that none of them has redox activity between 0 and 1 V except for sulphanilic acid (Fig.…”

Investigation of Some Ion Selective and Water Repellent Properties of Carbazole Based Polymers

“…Electrochromic materials produced by electrochemical synthesis are generally based on monomeric electroactive compounds such as thiophene, carbazole, aniline, EDOT, pyrrole and their derivatives. Among these compounds, carbazole is preferred as the starting compound in scientific studies because of its suitable structure for electrochemical synthesis [2][3][4]. Below, the advantages offered by the carbazole unit used in these studies are briefly mentioned:…”