Ceric ion-induced synthesis of polymethyl methacrylate-grafted oatmeal: its characterizations and applications

摘要

The present studies report the synthesis of a novel graft copolymer polymethyl methacrylate-grafted oatmeal (OAT-g-PMMA) using conventional technique. Grafting of PMMA chains on the backbone of parent biopolymer (oatmeal) was confirmed through various physicochemical techniques like intrinsic viscosity, FTIR, elemental analysis (C, H, N, S and O), scanning electron microscopy, thermal gravimetric analysis, number-average molecular weight, solubility, C-13-CP/MAS solid-state NMR spectroscopy and P-XRD. The intrinsic viscosity of oatmeal substantially improved after grafting of PMMA chains. The grafted biopolymers were assessed for its implication as a potential flocculant by standard jar test and settling test protocol. Flocculation characteristics of the synthesized OAT-g-PMMA were compared with parent biopolymer (oatmeal) and alum in 0.25wt.% kaolin suspension and then in municipal wastewater through standard jar test protocol which showed encouraging results.