Synthesis of graft copolymer (CgOH-g-AGA): Physicochemical properties, characterization and application |
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Authors: | Arpit Sand Dinesh Kumar Mishra Vijay Shankar Pandey Madan Mohan Mishra Kunj Behari |
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Institution: | Polymer Science Research Laboratory (PSRL), Department of Chemistry, University of Allahabad, Allahabad 211002, India. |
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Abstract: | A graft copolymer of κ-carrageenan and 2-acrylamidoglycolic acid (CgOH-g-AGA) was synthesized via free radical polymerization initiated by potassium peroxymonosulphate/malonic acid redox pair. For affording maximum percentage of grafting, optimum conditions were determined by varying the concentrations of κ-carrageenan, 2-acrylamidoglycolic acid, potassium peroxymonosulphate, malonic acid, hydrogen ion, time and temperature. The swelling, metal ion uptake and flocculation studies were investigated with water, three metals (Ni(2+), Pb(2+) and Zn(2+)) solutions, coal (coking and non-coking) suspensions, respectively. Both, polymer backbone and its corresponding graft copolymer samples were characterized by Fourier transform infrared spectroscopy and thermogravimetric analysis. |
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