IDEAS home Printed from https://ideas.repec.org/a/eee/phsmap/v201y1993i1p322-331.html
   My bibliography  Save this article

Dynamics of colloid-polymer mixtures

Author

Listed:
  • Pusey, P.N.
  • Pirie, A.D.
  • Poon, W.C.K.

Abstract

We report a preliminary study of the dynamics of mixtures of “hard-sphere” colloidal particles and non-adsorbing polymer, in which the polymer induces a “depletion” attraction between the particles. Moderate concentrations of polymer cause the suspensions to separate into coexisting colloidal fluid and colloidal crystalline phases, whereas more polymer leads to “gel” states in which crystallization is suppressed. Studies of the intensity of scattered light at low angles and dynamic light scattering at larger angles suggest the following picture of the gels. Initial rapid diffusion-limited aggregation of the particles via the depletion attraction produces a close-packed assembly of clusters. Subsequent slower consolidation of the clusters weakens them to the point where they no longer support their weight and gravitational settling occurs.

Suggested Citation

  • Pusey, P.N. & Pirie, A.D. & Poon, W.C.K., 1993. "Dynamics of colloid-polymer mixtures," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 201(1), pages 322-331.
  • Handle: RePEc:eee:phsmap:v:201:y:1993:i:1:p:322-331
    DOI: 10.1016/0378-4371(93)90430-C
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/037843719390430C
    Download Restriction: Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000

    File URL: https://libkey.io/10.1016/0378-4371(93)90430-C?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Pusey, P.N. & Van Megen, W. & Underwood, S.M. & Bartlett, P. & Ottewill, R.H., 1991. "Colloidal fluids, crystals and glasses," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 176(1), pages 16-27.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Cichocki, B. & Felderhof, B.U., 1993. "Influence of hydrodynamic interactions on self-diffusion and stress relaxation in a semidilute suspension of hard spheres," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 198(3), pages 423-440.
    2. Watzlawek, M. & Nägele, G., 1997. "Short-time rotational diffusion in monodisperse charge-stabilized colloidal suspensions," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 235(1), pages 56-74.
    3. Krall, A.H. & Huang, Z. & Weitz, D.A., 1997. "Dynamics of density fluctuations in colloidal gels," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 235(1), pages 19-33.
    4. Nägele, Gerhard & Baur, Peter, 1997. "Long-time dynamics of charged colloidal suspensions: hydrodynamic interaction effects," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 245(3), pages 297-336.
    5. Bartsch, E. & Frenz, V. & Möller, S. & Sillescu, H., 1993. "Colloidal polystyrene micronetwork spheres — a new mesoscopic model of the glass transition in simple liquids," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 201(1), pages 363-371.
    6. Hansen, Jean-Pierre, 1993. "The kinetic glass transition: what can we learn from molecular dynamics simulations?," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 201(1), pages 138-149.
    7. Cichocki, B. & Felderhof, B.U., 1994. "Dynamic scattering function of a dense suspension of hard spheres," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 204(1), pages 152-168.
    8. Henderson, S.I. & Mortensen, T.C. & Underwood, S.M. & van Megen, W., 1996. "Effect of particle size distribution on crystallisation and the glass transition of hard sphere colloids," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 233(1), pages 102-116.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:phsmap:v:201:y:1993:i:1:p:322-331. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/physica-a-statistical-mechpplications/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.