Electropolymerization of self-doped polythiophene in acetonitrile containing FSO3H

Udum Y., Pekmez K., Yildiz A.

SYNTHETIC METALS, vol.142, pp.7-12, 2004 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 142
  • Publication Date: 2004
  • Doi Number: 10.1016/j.synthmet.2003.07.001
  • Journal Name: SYNTHETIC METALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.7-12
  • Hacettepe University Affiliated: Yes


Sulfonated polythiophene films were synthesized from the acetonitrile solution which contained different amounts of anhydrous fluorosulfonic acid (FSO3H). Electrochemical oxidation of thiophene produced self-doped conducting polythiophene films which were soluble in DMSO and KOH. The solubility and conductivity properties of the polymer films were dependent on the degree of sulfonation (C/S ratio) value. The solubility values increased and conductivity values decreased with increasing degree of sulfonation (decreasing C/S ratio). The resulting polymer structures were characterized by cyclic voltammetry, UV-Vis, FT-IR, elemental analysis, dry conductivity, intrinsic viscosity measurement and thermal gravimetric analysis (TG). (C) 2003 Elsevier B.V. All rights reserved.