Single-phase layered nanocomposites containing 1T-TaS2 and poly(ethylene oxide) or poly(ethylenimine) have been first synthesized by using the exfoliation-adsorption method. They have been characterized by powder X-ray diffraction. As the products exhibited lattice expansions along the stacking direction, poly(ethylene oxide) and poly(ethylenimine) were intercalated into 1T-TaS2 galleries. Despite high conductivity of the host material, the resistivities of the polymer/1T-TaS2 nanocomposites were found to be high in the order of 5.9-13 Ohm cm. (C) 2002 Elsevier Science Ltd. All rights reserved.