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http://dx.doi.org/10.7584/ktappi.2012.44.2.008

Effect of Branch Degree of Cationic Acrylamide Copolymers on Flocculation Properties  

Son, Dong-Jin (OCI-SNF Co. Ltd.)
Kim, Bong-Yong (Department. of Wood Science and Technology, College of Agriculture and Life Science, Kyungpook National University)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.44, no.2, 2012 , pp. 8-17 More about this Journal
Abstract
Three kinds of cationic acrylamide copolymer with different branch degree were prepared controlling the dosage of N, N'-methylenebisacrylamide. The physical characteristics of the branch-degree-modified copolymers were analyzed by intrinsic viscosity and charge density. The branch degree measurements were investigated by applying the colloidal titration phenomena using a spectrophotometer and comparison with the cationic regain measurement method. The results showed that the absorbance behaviors of spectrophotometer were distinctively different with the branch degree of copolymers. Also, the branch degree determinations and molecular structure estimations of the copolymers were numerically measured by applying the titration phenomena using a spectrophotometer. Finally, three kinds of branch-degree-modified copolymers were applied to flocculation test using arbocel micro pulp for the determination of flocculation behavior by different morphology of cationic acrylamide copolymers.
Keywords
branch degree; acrylamide; cationic polyacrylamide; copolymer; flocculation;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Nasser, M. S., and Nasser, A.E., The effect of polyacrylamide charge density and molecular weight on the flocculation and sedimentation behaviour of kaolinite suspensions, Separation and purification technology, 52(2): 241-251 (2006).   DOI
2 Bhardwaj, N. K., Kumar, S., and Bajpai, P. K., Effect of zeta potential on retention and drainage of secondary fibres, Colloids and surfaces A Physicochemical and engineering aspects, 260(1-3): 245-250 (2005).   DOI
3 Ren, H., Chen, W., Zheng, Y., and Luan, Z., Effect of hydrophobic group on flocculation properties and dewatering efficiency of cationic acrylamide copolymers, Reactive and functional polymers, 67(7): 601-608 (2007).   DOI
4 Larsson, A., Walldal, C., and Wall, S., Flocculation of cationic polymers and nanosized particles, Colloids and surfaces A Physicochemical and engineering aspects, 159(1): 65-76 (1999).   DOI
5 Ono, H., and Deng, Y., Flocculation and Retention of Precipitated Calcium Carbonate by Cationic Polymeric Microparticle Flocculants, Journal of colloidal interface science, 188(1): 183-192 (1997).   DOI
6 Yan, Z., and Deng, Y., Cationic microparticle based flocculation and retention systems, Chemical engineering journal A, 80(1-3): 31-36 (2000).   DOI
7 Naghash, H. J., Massah, A., and Erfan, A., Free-radical crosslinking copolymerization of acrylamide and N,N′-methylenebis acrylamide by used Ce(IV)/ polyethylene glycol and Ce(IV)/diethylmalonate redox initiator systems, European polymer journal A, 38(1): 147-150 (2002).   DOI
8 Son, D. J., and Kim, B. Y., New retention system using branched polymer, J. Korea TAPPI Panpacific conference proceeding, Vol. 2: 251-256 (2006).   과학기술학회마을
9 Shin, J. H., Han, S. H., Sohn, C. M., Ow, S. K., and Mah, S., Highly branched cationic polyelectrolytes: filler flocculation, J. Korea TAPPI, 80(11): 179-185 (1997).
10 Shin, J. H., Han S. H., Sohn, C. M., Ow, S. K., and Mah, S., Highly branched cationic polyelectrolytes: fines retention, J. Korea TAPPI, 80(10): 185-189 (1997).
11 Wan, X. F., Li, Y. M., Wang, X., Chen, S., and Gu, X. Y., Synthesis of cationic guar gum-graft-polyacrylamide at low temperature and its flocculating properties, European polymer journal, 43(8): 3655-4661 (2007).   DOI
12 Yezek, L. P., and Leeuwen, H. P., An electrokinetic characterization of low charge density cross-linked polyacrylamide gels, Journal of colloid and interface science, 278(1): 243-250 (2004).   DOI
13 Silva, R., and Oliveira, M. G., Effect of the cross-linking degree on the morphology of poly(NIPAAm-co-AAc) hydrogels, Polymer, 48(14): 4114-4122 (2007).   DOI   ScienceOn
14 Omari, A., Tabary, R., Rousseau, D., Calderon, F. L., Monteil, C. J., and Chauveteau, M. G., Soft water- soluble microgel dispersions: Structure and rheology, Journal of colloid and interface science, 302(2): 537-546 (2006).   DOI
15 Nanko, H., Mcneal, M., and Pan, S., Understanding wet-end polymer performance through visualization of macromolecular events by transmission electron microscopy, Panpacific conference proceeding, Vol. 1: 1-18 (2006).