No abstract

A highly electrically conducting graphene (reduced graphene oxide, rGO)-based polymer composite was successfully prepared via organogels using an organically dispersible polyaniline (PANI) and a low molecular-weight organogelator consisting of cholesterol derivatives. The plain gel was prepared by heat treatment of a mixture of toluene and the organogelator. PANI-rGO organogel was prepared by adding PANI and rGO to the plain gel and mixing them. Microscopic studies established that organogelators formed threedimensional networks and that the PANI aggregates and rGO particles were dispersed within the organogels. Viscoelastic measurements demonstrated that the PANI-rGO organogel showed rapid and repeatedly thixotropic behavior. BDried^PANI-rGO composites showed high electrical conductivity. A ballpoint pen was filled with the PANI-rGO organogel and used to produce lines similar to the ones produced by commercially available ballpoint pen. The line showed electrical conductivity. The novel PANI-rGO composite shows high electrical conductivity through easy preparation, one which is just like mixing.