Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8335133 | International Journal of Biological Macromolecules | 2012 | 7 Pages |
Abstract
The synthesis of graft copolymer (κ-carrageenan-g-vinylsulfonic acid) is carried out in nitrogen atmosphere using potassium peroxymonosulfate (PMS) and malonic acid (MA) as redox system. The effect of reaction variables including the concentration of vinylsulfonic acid 1.3 Ã 10â2 to 6.7 Ã 10â2 mol dmâ3, PMS 4 Ã 10â3 to 20 Ã 10â3 mol dmâ3, MA 1.6 Ã 10â3 to 4.8 Ã 10â3 mol dmâ3, sulfuric acid 1 Ã 10â3 to 8 Ã 10â3 mol dmâ3, κ-carrageenan 0.4-1.8 g dmâ3 as well as time duration 60-180 min and temperature 25-45 °C has been studied. The water swelling capacity of graft copolymer is investigated. Flocculation property for both coking and non-coking coals is studied for the treatment of coal mine waste water. The graft copolymer has been characterized by FTIR and thermogravimetric analysis.
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Authors
Mithilesh Yadav, Arpit Sand, Madan Mohan Mishra, Jasaswini Tripathy, Vijay Shankar Pandey, Kunj Behari,