ACTA CHIMICA SLOVENICA, vol.50, no.4, pp.741-750, 2003 (SCI-Expanded)
Oligomerization reactions of thiophene and pyrrole monomers and chemical copolymerization of these oligomers were investigated in acetonitrile solutions containing thiophene-HBF4, pyrrole-HBF4 and thiophene-pyrrole-HBF4. According to the results obtained from these studies, chemical oxidative polymerization of pyrrole and thiophenepyrrole mixture occurs when anhydrous FeCl3 is used as oxidative agent in the presence of various amounts of HBF4. It was observed that homopolymer and copolymer colloids of different compositions are formed, respectively, depending on the concentration of HBF4 used. These polymers were characterized with TGA, DSC, UV-Vis, FTIR techniques and elemental analysis.