A poly(N-vinylcarbazole) (PNVC)-formalin (FO) resin (PNVC-FO) was prepared via copolycondensation between N-vinylcarbazole (NVC and FO in the presence of dry HCI gas in toluene medium at 110 degrees C. A highly conducting composite of PNVC-FO resin with nanodimensional acetylene black (AB) was prepared by carrying out the polycondensation reaction in presence of a suspension of acetylene black (AB) in toluene. The inclusion of PNVC in the PNVC-FO-AB composite was confirmed by FT-IR analysis. Scanning electron microscopic analyses of PNVC-FO resin and PNVC-FO-AB composite revealed formation of spherical particles and aggregates of irregular shapes respectively. Thermogravimetric analyses revealed the overall stability order as: AB > PNVC- FO-AB composite > PNVC-FO resin > PNVC homopolymer. In sharp contrast to PNVC and PNVC-FO resin, which were both nonconducting (10(-12) to 10(-16) S/cm), the conductivity of the composites reached values between 0.75S/cm and 6.54 S/ cm corresponding to AB loading of 28-49 wt % respectively. Temperature versus conductivity studies revealed an initial increase in conductivity upto 200 degrees C and current-voltage characteristics of the PNVC-FO-AB composite showed a linear trend consistent with Ohmic behavior. (c) 2007 Wiley Periodicals, Inc.