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Issue 19, 2016
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Elastic response and phase behavior in binary liquid crystal mixtures

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Abstract

Utilizing density-of-states simulations, we perform a full mapping of the phase behavior and elastic responses of binary liquid crystalline mixtures represented by the multicomponent Lebwohl–Lasher model. Our techniques are able to characterize the complete phase diagram, including nematic–nematic phase separation predicted by mean-field theories, but previously not observed in simulations. Mapping this phase diagram permits detailed study of elastic properties across the miscible nematic region. Importantly, we observe for the first time local phase separation and disordering driven by the application of small linear perturbations near the transition temperature and more significantly through nonlinear stresses. These findings are of key importance in systems of blended nematics which contain particulate inclusions, or are otherwise confined.

Graphical abstract: Elastic response and phase behavior in binary liquid crystal mixtures

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Publication details

The article was received on 23 Dec 2015, accepted on 05 Apr 2016 and first published on 06 Apr 2016


Article type: Paper
DOI: 10.1039/C5SM03107A
Citation: Soft Matter, 2016,12, 4489-4498
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    Elastic response and phase behavior in binary liquid crystal mixtures

    H. Sidky and J. K. Whitmer, Soft Matter, 2016, 12, 4489
    DOI: 10.1039/C5SM03107A

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