Tripathy, T and Pandey, S R and Karmakar, N C and Bhagat, R P and Singh, R P (1999) Novel flocculating agent based on sodium alginate and acrylamide. European Polymer Journal . pp. 2057-2072.
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Graft copolymers of sodium alginate with polyacrylamide were synthesized using a ceric ion initiated solutionn polymerization technique at 27+1oC. Six graft copolymers have been synthesized with a variation in the number and length of grafted polyacrylamide chains. The graft copolymers have been characterized by viscometry, IR spectroscopy, SEM and XRD study. The flocculation chara-cteristics were evaluated in 0.25 et% kaokin and 10 wt% iron ore suspensions. The flocculation behaviour of one of the above grades has been studied on a 1 wt% coal suspension. The flocculation characteristics of these grafted polymers were also compared with various comm-ercially available polymeric flocculants. Among the grafted alginates, it was observed that, the graft copolymers containing longer polyacrylamide chains were the most efficient.
|Uncontrolled Keywords:||polyacrylamide; copolymers; physical properties; sodium alginate|
|Deposited By:||Dr. A K Sahu|
|Deposited On:||31 May 2013 22:19|
|Last Modified:||31 May 2013 22:19|
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