Graft copolymers of end methacrylate-functionalized[MacroAM] or styrene-functionalized[MacroAS] polyamide macromonomers with methyl methacrylate(MMA) were prepared by radical copolymerization, and their thermal, dynamic properties, and miscibility with matrix PMMA have been investigated. The glass transition temperature(Tg)s of the copolymers were significantly elevated with the increase of the macromonomer content in the copolymer. Storage modulus E’ of the graft copolymers began to decrease at around 85 degrees C, which is close to Tg of PMMA, irrespective of the macromonomer content in the copolymers. As the macromonomer content and its degree of polymerization became higher, the drop in E’ became significant.