Penetrability in model colloid polymer mixtures

Schmidt, Matthias; Fuchs, Matthias

Penetrability in model colloid polymer mixtures

Files

Penetrability_in_model_colloid_polymer_mixtures.pdf(190.39 KB)

Date

2002

Authors

Schmidt, Matthias

Fuchs, Matthias

Publication type

Journal article

Published in

Journal of Chemical Physics ; 117 (2002), 13. - pp. 6308-6312

Abstract

In order to study the effects of penetrability in mixtures of dissimilar particles we consider hard ~colloidal! spheres and penetrable spheres. The latter may be taken to represent ideal, noninteracting polymer coils. Polymers and colloids interact by means of a repulsive step-function pair potential, which allows for insertion of colloids into the polymer coil. The potential strength is obtained from scaling arguments for the cross virial coefficient of true colloid polymer systems. For this model we construct a geometry-based density functional and apply it to bulk fluid demixing. We find that taking into account penetrability leads to a significant stabilization of the mixed phase for large polymer-to-colloid size ratio.

Subject (DDC)

530 Physics

Cite This

ISO 690

SCHMIDT, Matthias, Matthias FUCHS, 2002. Penetrability in model colloid polymer mixtures. In: Journal of Chemical Physics. 117(13), pp. 6308-6312. Available under: doi: 10.1063/1.1503303

BibTex

@article{Schmidt2002Penet-5152,
  year={2002},
  doi={10.1063/1.1503303},
  title={Penetrability in model colloid polymer mixtures},
  number={13},
  volume={117},
  journal={Journal of Chemical Physics},
  pages={6308--6312},
  author={Schmidt, Matthias and Fuchs, Matthias}
}

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