A conducting polyN-vinylcarbazole-molybdenum blues nanocomposite from N-vinylcarbazole-MoVI polymerization system

Oxidative polymerization of N-vinylcarbazole (NVC) was achieved in bulk (65 °C) and in CHCl3 (70 °C) by MoVIO3 and by 'molybdenum blues' (MB) prepared by the reducing MoO3 with SnCl2. Formation of polyN-vinylcarbazole (PNVC) and its subsequent incorporation in these composite systems was endorsed by FTIR spectral analyses. Scanning electron micrographic analyses revealed the presence of very small spherical particles in MB and lumpy aggregates in PNVC-MB composite system, respectively. Thermogravimetric stability studies showed overall thermal stability trend as follows: MB > PNVC-MB > PNVC. The dc conductivity values (S/cm) of the PNVC-MB composite obtained in the present study were 10−2-a value 1012 fold improved compared to that of the unmodified PNVC (10−12 to 10−16).