Synthesis and electropolymerization of 3-arylthieno[3,2- b ]thiophenes and triphenylamine based comonomers


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Topal S., İşçi R., Sezer E. , Öztürk T. , Ustamehmetoğlu B.

ELECTROCHIMICA ACTA, vol.389, pp.138688-138695, 2021 (Journal Indexed in SCI Expanded)

  • Publication Type: Article / Article
  • Volume: 389
  • Publication Date: 2021
  • Doi Number: 10.1016/j.electacta.2021.138688
  • Title of Journal : ELECTROCHIMICA ACTA
  • Page Numbers: pp.138688-138695

Abstract

Electrochemical polymerizations of thieno[3,2- b ]thiophenes (TT), named PhTTTPA, CH 3 OPhTTTPA and CNPhTTTPA , possessing pH, 4-CH 3 OPh, 4-CNPh and triphenylamine (TPA) units, were performed and their corresponding polymers P[PhTTTPA], P[CH 3 OPhTTTPA] and P[CNPhTTTPA] were obtained, respec- tively. The polymer films were characterized by cyclic voltammetry (CV), electrochemical impedance spec- troscopy (EIS) and spectroelectrochemical measurements, which suggested that while the presence of strong electron donating TPA unit provided them with better electrochemical reversibility, strong elec- tron withdrawing -CN group lowered the oxidation potential of P[CNPhTTTPA] along with enhancement of its charge storage character.