Synthesis and characterization of poly(methyl methacrylate-g-a-meth yl-ß-alanine) copolymer using Grafting Through method

Abstract

Synthesis of poly(methyl methacrylate-g-alpha-methyl-ss-alanine) [poly(MMA-g-mBA)] copolymer was achieved through basecatalyzed hydrogen transfer polymerization (HTP) and free-radical polymerization (FRP), respectively. For this purpose, poly(a-methyl ss-alanine) [PmBA] oligomer with olefinic end-group as a macromonomer was synthesized from methacrylamide by base-catalyzed HTP method. Poly(MMA-g-mBA) in different compositions was obtained through FRP of methyl methacrylate/the PmBA macromonomer mixtures using the grafting through method. The characterization of the copolymerization products was accomplished by using multi-instruments such as 1H-NMR, FTIR, TGA, and dynamic light scattering. The spectroscopic and thermal analysis of the graft copolymer reveal that the copolymer was easily built through a combination of HTP and FRP techniques.