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

Authors

  • László Kiss
    Affiliation

    Department of General and Physical Chemistry, University of Pécs, H-7624 Pécs, Ifjúság street 6, Hungary ; János Szentágothai Research Center, H-7624 Pécs, Ifjúság útja 20, Hungary

  • Ferenc Kovács
    Affiliation

    Department of General and Physical Chemistry, University of Pécs, H-7624 Pécs, Ifjúság street 6, Hungary

  • Sándor Kunsági-Máté
    Affiliation

    Department of Organic and Pharmacological Chemistry, University of Pécs, H-7624 Pécs, Honvéd street 1, Hungary

https://doi.org/10.3311/PPch.14959

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.

Keywords:

N,N’-diphenylguanidine, non-aqueous solvent, electrooxidation, cyclic voltammetry

Published Online

2020-04-07

How to Cite

Kiss, L., Kovács, F., Kunsági-Máté, S. “Electropolymerization of N,N’-Diphenylguanidine in Non-Aqueous Aprotic Solvents and Alcohols”, Periodica Polytechnica Chemical Engineering, 65(1), pp. 139–147, 2021. https://doi.org/10.3311/PPch.14959

Issue

Section

Articles