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


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

ELECTROCHIMICA ACTA, vol.389, 2021 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 389
  • Publication Date: 2021
  • Doi Number: 10.1016/j.electacta.2021.138688
  • Title of Journal : ELECTROCHIMICA ACTA
  • Keywords: Phenyl, Methoxyphenyl, Cyanophenyl, Thieno[32-b]thiophene, Triphenylamine, Electrochemical polymerization, CONJUGATED MICROPOROUS POLYMER, HETEROJUNCTION SOLAR-CELLS, OPTICAL-PROPERTIES, ENERGY-STORAGE, THIENOTHIOPHENE, THIOPHENE, DITHIENOTHIOPHENE, TRANSISTORS, PERFORMANCE, DERIVATIVES

Abstract

Electrochemical polymerizations of thieno[3,2-b]thiophenes (TT), named PhTTTPA, CH(3)OPhTTTPA and CNPhTTTPA, possessing pH, 4-CH3OPh, 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. (C) 2021 Published by Elsevier Ltd.