Carbohydrate polymers 2012-10-01

Synthesis of graft copolymer (CgOH-g-AGA): physicochemical properties, characterization and application.

Arpit Sand, Dinesh Kumar Mishra, Vijay Shankar Pandey, Madan Mohan Mishra, Kunj Behari

Index: Carbohydr. Polym. 90(2) , 901-7, (2012)

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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.Copyright © 2012 Elsevier Ltd. All rights reserved.