Pirolün Florosülfonik Asit ve Klorosülfonik Asit Varlığında Elektrokimyasal Polimerizasyonu

Abstract

Conductive polymeric films can be produced using electrochemical oxidation or reduction methods by controlling electrolysis conditions such as potentials, potential cycling parameters, current density and time. In this way, conducting polymers having different conductivities, doping level and film thickness can be obtained easily. In this study, the conducting polymer self doped polypyrrole was obtained by electropolymerization and in-situ sulphonation of pyrrole monomer in acetonitrile solvent presence of fluorosulphonic and chlorosulphonic acid using potential cycling electrolysis (potentiodynamic methods) and constant current electrolysis on Pt electrode surface. Tetrabutylammonium fluorosulphonate (TBASO3F) and tetrabutylammonium chlorosulphonate (TBASO3Cl) were used as supporting electrolyte during electrochemical polymerization. Effect of pyrrole monomer and excess sulphonic acid concentration were examined on electrochemical polymerization and sulphonation.