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International Journal of Polymer Science
Volume 2013 (2013), Article ID 397027, 10 pages
Research Article

Synthesis, Characterization, and Flocculation Properties of Branched Cationic Polyacrylamide

Department of Applied Chemistry, School of Science, Northwestern Polytechnical University, Xi’an 710072, China

Received 7 November 2012; Revised 28 February 2013; Accepted 5 April 2013

Academic Editor: Yulin Deng

Copyright © 2013 Weimin Sun et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A water soluble branched cationic polyacrylamide (BCPAM) was synthesized using solution polymerization. The polymerization was initiated using potassium diperiodatocuprate, K5[Cu(HIO6)2](Cu(III)), initiating the self-condensing vinyl copolymerization of acrylamide and acryloxyethyltrimethyl ammonium chloride (DAC) monomer. The resulting copolymer was characterized by the use of Fourier-transform infrared (FTIR) spectroscopy and nuclear magnetic resonance (NMR) spectroscopy. Its flocculation properties were evaluated with standard jar tests of sewage. The effects of initiator concentration, monomer concentration, reaction temperature, and the mass ratio of monomers on intrinsic viscosity and flocculation properties of the product were determined using single-factor experiments and orthogonal experiment.