Phase separation in star polymer-colloid mixtures

A. B. Schofield; A. Jusufi; C. N. Likos; C. von Ferber; D. Richter; H. Lowen; J. Allgaier; J. Dzubiella; J. Stellbrink; P. A. Smith

arxiv: cond-mat/0010176 · v1 · submitted 2000-10-12 · ❄️ cond-mat.soft

Phase separation in star polymer-colloid mixtures

J. Dzubiella , A. Jusufi , C. N. Likos , C. von Ferber , H. Lowen , J. Stellbrink , J. Allgaier , D. Richter

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A. B. Schofield P. A. Smith W. C. K. Poon P. N. Pusey

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classification ❄️ cond-mat.soft

keywords mixturesstardemixingpolymer-colloidapproximatelybinarybinodalscalculated

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We examine the demixing transition in star polymer-colloid mixtures for star arm numbers f=2,6,16,32 and different star-colloid size ratios. Theoretically, we solve the thermodynamically self-consistent Rogers-Young integral equations for binary mixtures using three effective pair potentials obtained from direct molecular computer simulations. The numerical results show a spinodal instability. The demixing binodals are approximately calculated, and found to be consistent with experimental observations.

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Phase separation in star polymer-colloid mixtures

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