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Complexing behaviors between ammonium polyacrylate and poly(diallyldimethylammonium chloride) polyelectrolytes
journal contribution
posted on 2007-01-23, 10:20 authored by Yongheng Zhang, J.G.P. BinnerThe 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.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Materials
Pages
297305 bytesCitation
ZHANG, Y. and BINNER, J.G.P., 2005. Complexing behaviors between ammonium polyacrylate and poly(diallyldimethylammonium chloride) polyelectrolytes. Polymers, 46, pp. 10517–10522Publisher
© ElsevierPublication date
2005Notes
This is Restricted Access. This article was published in the journal, Polymer [© Elsevier] and is available at: http://www.sciencedirect.com/science/journal/00323861.ISSN
0032-3861Language
- en