Phase behavior of mixtures of colloidal platelets and nonadsorbing polymers

Shu-Dong Zhang; P.A. Reynolds; J.S. Van Duijneveldt

doi:10.1063/1.1518007

Phase behavior of mixtures of colloidal platelets and nonadsorbing polymers

Shu-Dong Zhang, P.A. Reynolds, J.S. Van Duijneveldt

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63 Citations (Scopus)

Abstract

The phase behavior of a model system of colloidal platelets and nonadsorbing polymers is studied using computer simulations and perturbation theory. The equation of state for the pure platelet reference system is obtained by Monte Carlo simulations, and the free volume fraction accessible to polymers is measured by a trial insertion method. The free volume fraction is also calculated using scaled particle theory. Subsequently, the phase diagram for platelet-polymer mixtures is calculated. For a platelet aspect ratio L/D=0.1 and a polymer to platelet size ratio d/D>0.2, we observe coexistence between two isotropic phases with different densities. For smaller polymers d/D

Original language	English
Pages (from-to)	9947-9958
Number of pages	12
Journal	Journal of Chemical Physics
Volume	117
Issue number	21
DOIs	https://doi.org/10.1063/1.1518007
Publication status	Published - 01 Dec 2002

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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abstract = "The phase behavior of a model system of colloidal platelets and nonadsorbing polymers is studied using computer simulations and perturbation theory. The equation of state for the pure platelet reference system is obtained by Monte Carlo simulations, and the free volume fraction accessible to polymers is measured by a trial insertion method. The free volume fraction is also calculated using scaled particle theory. Subsequently, the phase diagram for platelet-polymer mixtures is calculated. For a platelet aspect ratio L/D=0.1 and a polymer to platelet size ratio d/D>0.2, we observe coexistence between two isotropic phases with different densities. For smaller polymers d/D",

author = "Shu-Dong Zhang and P.A. Reynolds and {Van Duijneveldt}, J.S.",

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AU - Reynolds, P.A.

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Y1 - 2002/12/1

N2 - The phase behavior of a model system of colloidal platelets and nonadsorbing polymers is studied using computer simulations and perturbation theory. The equation of state for the pure platelet reference system is obtained by Monte Carlo simulations, and the free volume fraction accessible to polymers is measured by a trial insertion method. The free volume fraction is also calculated using scaled particle theory. Subsequently, the phase diagram for platelet-polymer mixtures is calculated. For a platelet aspect ratio L/D=0.1 and a polymer to platelet size ratio d/D>0.2, we observe coexistence between two isotropic phases with different densities. For smaller polymers d/D

AB - The phase behavior of a model system of colloidal platelets and nonadsorbing polymers is studied using computer simulations and perturbation theory. The equation of state for the pure platelet reference system is obtained by Monte Carlo simulations, and the free volume fraction accessible to polymers is measured by a trial insertion method. The free volume fraction is also calculated using scaled particle theory. Subsequently, the phase diagram for platelet-polymer mixtures is calculated. For a platelet aspect ratio L/D=0.1 and a polymer to platelet size ratio d/D>0.2, we observe coexistence between two isotropic phases with different densities. For smaller polymers d/D

U2 - 10.1063/1.1518007

DO - 10.1063/1.1518007

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JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

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ER -

Phase behavior of mixtures of colloidal platelets and nonadsorbing polymers

Abstract

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