The oxidative polymerization of thiophene derivatives were carried out using palladium (II) acetate as a catalyst in the combination with copper (II) acetate and trifluoroacetic acid under oxygen atmosphere. The poly(3-hexylthiophene) (P3HT) obtained by palladium catalyzed polymerization showed that head-to-head content was richer than authentic one prepared by a conventional oxidant, and that maximum absorption, and luminescence wavelengths of the P3HT are blue-shifted to 338 and 534 nm in ultraviolet and photoluminescence spectra, respectively. The catalytic system was also applied for the polymerization of 3,4-disubstituted thiophene monomers.
- Kousuke Tsuchiya
- Kenji Ogino
