SYNOPSISThe cyclic voltammograms of polyaniline prepared electrochemically were examined in the range -0.2 to 1.0 V vs. SCE in the presence and absence of aniline in the aqueous solution of HBF4. Cyclic voltammetry studies show that the polymeric film suffers degradation when the potential exceeds +0.85 V, and below this potential, it is quite stable. The redox reaction of the film is reversible. The polymeric film synthesized at low temperature and high acid concentration exhibits higher electronic conductivities. 0 1993

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