2-(bis(cyanomethyl)amino)-2-oxoethyl methacrylate (CMA2OEM) monomer was pre-synthesized and characterized. In this work, the homopolymer of CMA2OEM [poly(CMA2OEM)] and copolymer of CMA2OEM with methyl methacrylate [poly(CMA2OEM-co-MMA)] were synthesized by free radical chain polymerization reaction. Characterization of the synthesized poly(CMA2OEM) homopolymer and poly(CMA2OEM-co-MMA) copolymer were made by FT-IR and 1H NMR spectroscopic methods. In addition, thermal stability of these new polymers was also investigated, and compared to each other. From the thermal results, it was found that the thermal stability of the homopolymer was higher than the copolymer.