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

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 vi...

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Bibliographic Details
Published in:Desalination and water treatment 2016-06, Vol.57 (27), p.12777-12792
Main Authors: Bharti, Srijita, Mishra, Sumit, Narendra, Lagumaddepalli V., Balaraju, Tuniki, Balraju, Kammari
Format: Article
Language:English
Subjects:
13C-CP/MAS solid-state NMR spectroscopy
Biopolymers
Flocculant
Flocculation
Graft copolymers
Grafting
Gravimetric analysis
Jar tests
Municipal wastewater
Municipal wastewater treatment
Parents
Polymethyl methacrylates
Synthesis
Test procedures
Viscosity
“Conventional” synthesis
“Jar test” protocol
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Summary: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, 13C-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 0.25 wt.% kaolin suspension and then in municipal wastewater through standard “jar test” protocol which showed encouraging results.
ISSN:1944-3986
1944-3994
1944-3986
DOI:10.1080/19443994.2015.1056836