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The Flocculation and Rheological Characteristics of Hydrolyzed and Unhydrolyzed Grafted Sodium Alginate in Aqueous Solutions by D. R. Biswal; R. P. Singh is a Materials Science article available to read on EtoBox.

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## Abstract Sodium alginate is a natural anionic polysaccharide obtained from natural and microbial resources. It is also used as a flocculating agent and thickener. It is grafted with polyacrylamide, in the presence of ceric ammonium nitrate (CAN) as an initiator. The graft copolymer (SAG‐g‐PAM) is again hydrolyzed with some amount of alkali. The flocculation characteristics of hydrolyzed graft copolymer (Hyd SAG‐g‐PAM) are compared with that of the unhydrolyzed ones, in 5 wt % kaolin and 10 wt % iron ore suspensions. The flocculation characteristics of the hydrolyzed graft copolymer are also compared with those of some of the commercial flocculants. The SAG‐g‐PAM and Hyd SAG‐g‐PAM are characterized by IR and intrinsic viscosity measurements. The rheological properties of aqueous solutions of hydrolyzed and unhydrolyzed graft copolymers are measured by Advanced AR‐1000 Rheometer. There is drastic enhancement in flocculation and viscosifying characteristics on hydrolysis of the graft copolymers. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 94: 1480–1488, 2004

Who reads The Flocculation and Rheological Characteristics of Hydrolyzed and Unhydrolyzed Grafted Sodium Alginate in Aqueous Solutions?

Author

D. R. Biswal; R. P. Singh

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0021-8995)

Published

2004

Language

EN

Field

Materials Science (Physical Sciences)