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Influence of calcium and phosphate ions on the adsorption of partially hydrolyzed polyacrylamides on TiO2 and CaCO3

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Surfactants and Macromolecules: Self-Assembly at Interfaces and in Bulk

Part of the book series: Progress in Colloid & Polymer Science ((PROGCOLLOID,volume 82))

Abstract

The adsorption of neutral and 16% hydrolyzed polymers having similar molecular weights was compared on calcium carbonate and titanium dioxide. A detailed analysis of the measurements shows a lack of coherence between adsorption trends and electrical interactions between surfaces and molecules. The same coverage was measured on two oppositely charged surfaces, but in similar dispersing media (containing similar pH, ionic strength, and calcium concentration). Calcium ions considerably increase the uptake of hydrolyzed polymers due to the complexation and incidence on molecular overlaps in the interface. Phosphate ions decrease the adsorption of neutral and hydrolyzed polymers to zero on both minerals. This phenomena can be explained by the preferential adsorption of phosphates on the sites otherwise available for polymer binding. Results are highly dependent on the experimental procedure.

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Authors and Affiliations

  1. Laboratoire Electrochimie des Solides, U.F.R. des Sciences et Techniques, 25030, Besançon, Cedex, France

    Y. El Attar Sofi, C. Carquille, J. M. Lamarche & A. Foissy

Authors
  1. Y. El Attar Sofi
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  2. C. Carquille
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  3. J. M. Lamarche
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  4. A. Foissy
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Editor information

B. Lindman J. B. Rosenholm P. Stenius

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© 1990 Dr. Dietrich Steinkopff Verlag GmbH & Co. KG

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Attar Sofi, Y.E., Carquille, C., Lamarche, J.M., Foissy, A. (1990). Influence of calcium and phosphate ions on the adsorption of partially hydrolyzed polyacrylamides on TiO2 and CaCO3 . In: Lindman, B., Rosenholm, J.B., Stenius, P. (eds) Surfactants and Macromolecules: Self-Assembly at Interfaces and in Bulk. Progress in Colloid & Polymer Science, vol 82. Steinkopff. https://doi.org/10.1007/BFb0118240

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  • DOI: https://doi.org/10.1007/BFb0118240

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  • Publisher Name: Steinkopff

  • Print ISBN: 978-3-7985-0838-5

  • Online ISBN: 978-3-7985-1688-5

  • eBook Packages: Springer Book Archive

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