Preparation polystyrene/multiwalled carbon nanotubes nanocomposites by copolymerization of styrene and styryl-functionalized multiwalled carbon nanotubes

► A facile and simple way to successfully prepare the polystyrene/MWNTs nanocomposites. ► Characterizations show that styryl group covalently bond to the surface of MWNTs. ► The solutions of p-MWNTs/PS in chloroform have the hyperchromic effect. ► Thermal stability of p-tpas composites improved in the presence of MWNTs. ► The performance of polymer prepared by this method have great potential for exploitation.