In this study Poly(MMA-g-GMA) copolymers was prepared via reactive blending of PMMA and GMA using benzoyl peroxide (BPO) and dicumyl peroxide (DCP), and Poly(MMA-ran-GMA) was synthesized by solution copolymerization of methyl methacrylate (MMA) and glycidyl methacrylate (GMA), using benzoyl peroxide (BPO), as initiator. In order to compare synthesis methods, we evaluate the effect of several items on the chemical composition including the weight percent of MMA and GMA and the initiator concentration. Chemical compositions were determined qualitatively using FT-IR spectroscopy and quantitatively by titration by estimation of the epoxy content of GMA units. It could be concluded that the MMA/GMA copolymers have been successfully synthesized using both melt and solution copolymerization methods. Accordingly the percentage of GMA comonomer units could be directly increased by increasing its fraction in the feed. Keywords: Copolymerization; grafting efficiency; GMA; MMA