▎ 摘　　要

The aim of this study was to convert nonconducting polyethyl methacrylate (PEMA) matrix to thermally stable conducting composites with the reinforcement of reduced graphene oxide (rGO). PEMA/rGO nanocomposites were prepared by low-cost in situ technique. The interaction between PEMA and rGO was shown by Fourier-transform infrared spectroscopy and X-ray diffraction study. The structural properties of PEMA/rGO composites were studied with scanning electron microscopy and transmission electron microscopy. The surface roughness of composite was 40nm, which was calculated from atomic force microscope . The thermal stability of PEMA was considerably enhanced due to the incorporation of nano-filler. It was noticed that the remaining residue of composites was 32% at 600 degrees C due to dispersion of 5wt% of r-GO. The electrical properties of PEMA/rGO composites were studied by conductivity measurement. The electrical percolation was achieved at 3wt% of nano-filler loading. The synthesized material has achieved conducting behavior with improvement in thermal properties which is suitable for devices with conducting filler.