Journal
CARBOHYDRATE POLYMERS
Volume 71, Issue 4, Pages 524-534Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2007.06.021
Keywords
k-carrageenan; N,N-dimethylacrylamide; thermal analysis; swelling capacity; metal ion uptake; Flocculation
Categories
Ask authors/readers for more resources
Graft copolymer of k-carrageenan and N,N-dimethylacrylamide has been synthesized by free radical polymerization using peroxymonosulphate/glycolic acid redox pair in an inert atmosphere. The grafting parameters i.e. grafting ratio, add on and efficiency decrease with increase in concentration of k-carrageenan from 0.6 to 1.4 g dm(-3) and hydrogen ion from 3 x 10(-3) to 7 x 10(-3) mol dm(-3), but these grafting parameters increase with increase in concentration of N,N-dimethylacrylamide from 16 x 10(-2) to 32 x 10(-2) mol dm(-3), and peroxymonosulphate from 0.8 x 10(-2) to 2A x 10(-2) Mol dm(-3). The metal ion sorption, swelling behaviour and flocculation properties have been studied. The intrinsic viscosity of pure and grafted samples has been measured by using Ubbelohde capillary viscometer. Flocculation capability of k-carrageenan and k-carrageenan-g-N,N-dimethylacrylamide for both coking and non-coking coals has been studied for the treatment of coal mine waste water. The graft copolymer has been characterized by Infrared (IR) spectroscopy and thermogravimetric analysis. (c) 2007 Published by Elsevier Ltd.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available