4 In order to improve the compatibility between MoS2 and polymer matrix, MoS2 is first modified by cationic surfactant,cetyl trimethyl ammonium bromide (CTAB); subsequently, the modified MoS2 nanosheets (CTAB-MoS2) were homogeneously mixed with the monomers (styrene or methyl methacrylate),followed by polymerization initiated by benzoyl peroxide