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Studies of graft copolymerization of acrylamide onto guar gum using peroxydiphosphate-metabisulphite redox pair

✍ Scribed by Behari, Kunj; Tripathi, Mala; Taunk, Kavita; Kumar, Rajesh

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 88 KB
Volume: 49
Category: Article
ISSN: 0959-8103
DOI: 10.1002/(sici)1097-0126(200002)49:2<153::aid-pi306>3.0.co;2-n

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✦ Synopsis

The effect of reaction conditions on the grafting parameter during grafting of acrylamide onto guar gum has been studied using peroxydiphosphate±metabisulphite redox pair at 35 °C. Grafting ratio, ef®ciency and add-on all increase as the concentrations of peroxydiphosphate and acrylamide increase up to 40.0 Â 10 À3 mol dm À3 and 40.0 Â 10 À2 mol dm À3 , respectively. It has been observed that the optimum concentrations of metabisulphite and guar gum for obtaining high grafting ratio, ef®ciency, add-on and conversion are 6.0 Â 10 À3 mol dm À3 and 91.7 Â 10 À2 g dm À3 , respectively.

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