Reentrant behavior of relaxation time with viscosity at varying composition in binary mixtures

Mukherjee, Arnab ; Srinivas, Goundla ; Bagchi, Biman (2001) Reentrant behavior of relaxation time with viscosity at varying composition in binary mixtures Physical Review Letters, 86 (26). pp. 5926-5929. ISSN 0031-9007

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Official URL: http://prl.aps.org/abstract/PRL/v86/i26/p5926_1

Related URL: http://dx.doi.org/10.1103/PhysRevLett.86.5926

Abstract

In order to understand the long known anomalies in the composition dependence of diffusion and viscosity of binary mixtures, we introduce here two new models and carry out extensive molecular dynamics simulations. In these models, the two molecular species (A and B) have the same diameter and mass. In model I the interspecies interaction is more attractive than that between the pure components, while the reverse is true for model II. Simulations and mode coupling theory calculations reveal that the models can capture a wide variety of behavior observed in experiments, including the reentrant viscosity dependence of relaxation time.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:4214
Deposited On:18 Oct 2010 09:09
Last Modified:16 May 2016 14:54

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