Chemistry Letters, Vol.32, No.4, 334-335, 2003
p-doping of poly(3-hexylthiophene-2,5-diyl) with sulfonic acids and oxygen related to self-doping of sulfonated polythiophenes
Poly(3-hexylthiophene-2,5-diyl), P3HexTh, was p-doped by sulfonic acids such as CH3SO3H in the presence of O-2, In the case of regioregular head-to-tail type P3HexTh, molecular assembly took place prior to the p-doping. Tetramer and pentamer of thiophene underwent similar oxidation.