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Electrokinetic effects of adsorbed neutral polymers

  • Colloid Science
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Abstract

On the basis of a previously developed hydrodynamic model for adsorbed polymers the charge flow along a charged interface with adsorbed (uncharged) polymer is calculated. An effective electrokinetic layer thickness is defined and its dependence on the characteristics of the adsorbed polymer and the ionic strength is studied. It is found that tails are very important for the hydrodynamic effects considered because they effectively screen the solvent flow from inner parts of the absorbed layer. The electrokinetic layer thickness increases with decreasing ionic strength, and tends to a limit equal to the hydrodynamic thickness at very low ionic strength.

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Author notes

  1. M. A. Cohen Stuart

    Present address: Laboratory for Physical and Colloid Chemistry, Agricultural University, Wageningen, The Netherlands

  2. S. S. Dukhin

    Present address: Institute of Colloid and Water Chemistry, Academy of Science of the Ukrainian S.S.R., 252180, Kiev, USSR

Authors and Affiliations

  1. Laboratory for Physical and Colloid Chemistry, Agricultural University, Wageningen, The Netherlands

    F. H. W. H. Waajen & S. S. Dukhin

  2. Institute of Colloid and Water Chemistry, Academy of Science of the Ukrainian S.S.R., 252180, Kiev, USSR

    M. A. Cohen Stuart & F. H. W. H. Waajen

Authors
  1. M. A. Cohen Stuart
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  2. F. H. W. H. Waajen
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  3. S. S. Dukhin
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Stuart, M.A.C., Waajen, F.H.W.H. & Dukhin, S.S. Electrokinetic effects of adsorbed neutral polymers. Colloid & Polymer Sci 262, 423–426 (1984). https://doi.org/10.1007/BF01410263

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  • DOI: https://doi.org/10.1007/BF01410263

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