Graft Copolymer (Guar Gum-G-Poly 2-Acrylamidoglycolic Acid): Synthesis, Swelling and Flocculation Behaviors
Vijay Shankar Pandey,
Brajesh Kumar Shukla,
Mithilesh Yadav
Issue:
Volume 2, Issue 2, April 2017
Pages:
10-15
Received:
10 March 2017
Accepted:
13 July 2017
Published:
1 August 2017
Abstract: The present paper reports the modification of guar gum through the grafting of 2-acrylamidoglycolic acid by free radical polymerization using an efficient potassium peroxydiphosphate/thioacetamide redox system in nitrogen atmosphere. The reaction conditions for maximum grafting have been optimized by varying the reaction variables including the concentration of 2-acrylamidoglycolic acid (5.3×10-2 mol dm-3), potassium peroxydiphosphate (1.2×10-2 mol dm-3), thioacetamide (TA) (2×10-3 mol dm-3), sulphuric acid (4×10-3 mol dm-3), guar gum (1 g dm−3) along with time duration (150 min) and temperature (35°C). Water swelling capacity and flocculation and studies of synthesized graft copolymer have been performed with respect to the parent polymer. The graft copolymer has been characterized by Fourier transform infrared spectroscopy and thermogravimetric analysis.
Abstract: The present paper reports the modification of guar gum through the grafting of 2-acrylamidoglycolic acid by free radical polymerization using an efficient potassium peroxydiphosphate/thioacetamide redox system in nitrogen atmosphere. The reaction conditions for maximum grafting have been optimized by varying the reaction variables including the con...
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