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Title: Complexing behaviors between ammonium polyacrylate and poly(diallyldimethylammonium chloride) polyelectrolytes
Authors: Zhang, Yongheng
Binner, J.G.P.
Keywords: Polyelectrolyte complexes
Particle size distribution
Surface zeta potential
Issue Date: 2005
Publisher: © Elsevier
Citation: ZHANG, Y. and BINNER, J.G.P., 2005. Complexing behaviors between ammonium polyacrylate and poly(diallyldimethylammonium chloride) polyelectrolytes. Polymers, 46, pp. 10517–10522
Abstract: The formation and complexing behaviors of non-soluble polyelectrolyte complexes (nPECs) between ammonium polyacrylate (A40) and poly(diallyldimethylammonium chloride) (PDC) polyelectrolytes at different A40/PDC mass ratios, pHs and KNO3 concentrations were studied using particle size and zeta potential measurement techniques. It was found that the particle size distributions and surface charge behaviors of the formed nPECs were related to the mass ratio of participating polyelectrolytes and KNO3 concentrations. Without addition of KNO3, there was no nPECs formed at a mass ratio of 0.1. Both fine and large nPECs were formed at mass ratios of 0.2 and 0.6 while only fine nPECs formed at a mass ratio of 0.4. Increasing the mass ratio from 0.8 had no significant effect on particle size distribution. The observed complexing behaviors were related to the histories of charge neutralization degree of PDC and the surface zeta potentials of nPECs. The addition of electrolyte would result in bigger nPECs attributable to the shielding effect and weakened electrostatic interaction for polyelectrolytes and nPECs, and hence the linkage of nPEC became possible. The pH changes affected the surface zeta potentials of nPECs due to the variation in ionization of A40 molecules.
Description: This is Restricted Access. This article was published in the journal, Polymer [© Elsevier] and is available at: http://www.sciencedirect.com/science/journal/00323861.
URI: https://dspace.lboro.ac.uk/2134/2610
ISSN: 0032-3861
Appears in Collections:Closed Access (Materials)

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