Abstract: Styrene-butadiene-styrene/montmorillonite(SBS/MMT) nanocomposites were prepared by solution inter-calation and melt intercalation methods,respectively.The structure of the nanocomposites was characterized by X-ray diffraction(XRD) and Fourier transform infrared(FTIR) spectrum.Mechanical property and thermal stability of the products were investigated.The results showed that the addition of OMMT had promotional effect on these composite materials.The tensile strength and breaking elongation of th...