Electropolymerization of self-doped polythiophene in acetonitrile containing FSO3H

Udum Y. , Pekmez K., Yildiz A.

SYNTHETIC METALS, cilt.142, ss.7-12, 2004 (SCI İndekslerine Giren Dergi) identifier identifier


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.