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Issue 24, 2016
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Nematic ordering of semiflexible polymers confined on a toroidal surface

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Abstract

We study the isotropic-like and nematic states of wormlike liquid-crystal polymers embedded on the surface of a torus. The role played by surface curvature, which couples to the molecular rigidity, is reported as the main reason that causes the weak nematic ordering in an otherwise ordinary isotropic phase. The same coupling has a profound effect on the nematic states as well, which are stabilized by the Onsager excluded-volume interaction; the latter has been frequently used to study lyotropic liquid crystal polymers and is used here as an example of the physical mechanisms that drive the system to make orientational ordering. We identify important parameters in the system which are used as axes of the four-dimensional phase diagram. The numerical study demonstrates a strong correlation between the liquid-crystal defect-free and defect structures and the geometry of the liquid-crystal embedded surface.

Graphical abstract: Nematic ordering of semiflexible polymers confined on a toroidal surface

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Publication details

The article was received on 10 May 2016, accepted on 23 May 2016 and first published on 24 May 2016


Article type: Paper
DOI: 10.1039/C6SM01098A
Citation: Soft Matter, 2016,12, 5438-5449
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    Nematic ordering of semiflexible polymers confined on a toroidal surface

    S. Ye, P. Zhang and J. Z. Y. Chen, Soft Matter, 2016, 12, 5438
    DOI: 10.1039/C6SM01098A

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