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Trends in Colloid and Interface Science XIV pp 134–136Cite as

Deswelling and depletion flocculation of microgel particles under external osmotic pressure

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Part of the book series: Progress in Colloid and Polymer Science ((PROGCOLLOID,volume 115))

Abstract

Microgels are novel colloidal gels widely used because of the swelling or deswelling exhibited under specific external conditions. In this work, the effect of added free dextrans on the deswelling of microgel particles has been studied experimentally using photon correlation spectroscopy. Additionally, the influence of the dextran solution over the colloidal stability of the microgel particles has also been studied by turbidimetry. The results show that the extent of deswelling increases with an increase in the dextran concentration in the range where flocculation by depletion is absent. Finally, depletion flocculation is detected.

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Author information

Authors and Affiliations

  1. Group of Complex Fluids Physics Department of Applied Physics, University of Almería, 04120, Almería, Spain

    A. Ferández-Nieves, A. Fernández-Barbero & F. J. de las Nieves

  2. School of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, UK

    B. Vincent

Authors
  1. A. Ferández-Nieves
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  2. A. Fernández-Barbero
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  3. B. Vincent
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  4. F. J. de las Nieves
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Editor information

Editors and Affiliations

  1. University College Dublin, Ireland

    Vitaly Buckin (Chairman of the Organising Committee) (Chairman of the Organising Committee)

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© 2000 Springer-Verlag

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Ferández-Nieves, A., Fernández-Barbero, A., Vincent, B., de las Nieves, F.J. (2000). Deswelling and depletion flocculation of microgel particles under external osmotic pressure. In: Buckin, V. (eds) Trends in Colloid and Interface Science XIV. Progress in Colloid and Polymer Science, vol 115. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-46545-6_27

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  • DOI: https://doi.org/10.1007/3-540-46545-6_27

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-67128-2

  • Online ISBN: 978-3-540-46545-4

  • eBook Packages: Springer Book Archive

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