Polymerization of N-vinylcarbazole by gaseous initiators

The polymerization of N-vinylcarbazole initiated with NO2 and SO2 in dichloroethane has been studied. The kinetics of polymerization were followed gravimetrically. The Polymerization is fast with NO2 but a relatively slow rate was obtained with SO2. The polymerization with these gases appears to be initiated by a charge transfer mechanism.