Macromolecular theory of solvation and structure in mixtures of colloids and polymers

M. Fuchs and K. S. Schweizer
Phys. Rev. E 64, 021514 – Published 27 July 2001
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Abstract

The structural and thermodynamic properties of mixtures of colloidal spheres and nonadsorbing polymer chains are studied within a general two-component macromolecular liquid state approach applicable for all size asymmetry ratios. The dilute limits, when one of the components is at infinite dilution but the other concentrated, are presented and compared to field theory and to models that replace polymer coils with spheres. Whereas the derived analytical results compare well, qualitatively and quantitatively, with mean-field scaling laws where available, important differences from “effective sphere” approaches are found for large polymer sizes or semidilute concentrations.

  • Received 8 February 2001

DOI:https://doi.org/10.1103/PhysRevE.64.021514

©2001 American Physical Society

Authors & Affiliations

M. Fuchs1,* and K. S. Schweizer2

  • 1Department of Physics and Astronomy, The University of Edinburgh, JCMB King’s Buildings, Mayfield Road, Edinburgh EH9 3JZ, United Kingdom
  • 2Departments of Materials Science and Engineering and Chemistry and Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801

  • *Permanent address: Physik-Department, Technische Universität München, 85747 Garching, Germany.

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Vol. 64, Iss. 2 — August 2001

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