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Phase separation in mixtures of colloids and long ideal polymer coils
1Department of Physics, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom. r,sear@surrey.ac.uk
Physical Review Letters
|June 1, 2001
Abstract:
Colloidal suspensions with free polymer coils which are larger than the colloidal particles are considered. The polymer-colloid interaction is modeled by an extension of the Asakura-Oosawa model. Phase separation occurs into dilute and dense fluid phases of colloidal particles when polymer is added. The critical density of this transition tends to zero as the size of the polymer coils diverges.