Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 61, Issue -, Pages 276-284Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijbiomac.2013.07.003
Keywords
Agar; Flocculant; Microwave based synthesis; Jar test protocol; Poly(HEMA) grafted agar; River water clarification
Funding
- University Grants Commission, New Delhi, India [F-39-800/2010(SR)]
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Synthesis of graft copolymers under the influence of microwave radiation alone is a rapid, efficient, clean, cheap, convenient, energy-saving and green method. Grafting of poly(2-hydroxyethylmethacrylate) on agar backbone was carried out under the influence of microwave radiation. The synthesis is optimized in terms of percentage grafting and intrinsic viscosity, by varying the microwave irradiation time and monomer (2-hydroxyethylmethacrylate) concentration. The synthesized graft copolymers have been characterized by intrinsic viscosity measurement, FTIR spectroscopy, UV-spectroscopy, elemental analysis (C, H, N, & S), thermal studies and scanning electron microscopy (SEM). Flocculation efficacy of the synthesized graft copolymers was studied in 0.25% kaolin and 1% coal fine suspension, through 'jar test' procedure. Further, flocculation efficacy of the best grade, coagulant (alum) and agar were studied for possible application in remediation of metals from river water. (C) 2013 Elsevier B.V. All rights reserved.
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