Phase separation and disorder in doped nematic elastomers

Type
Article

Authors
Köpf, M. H.
Pismen, L. M.

KAUST Grant Number
KUK-C1-013-04

Online Publication Date
2013-10-28

Print Publication Date
2013-10

Date
2013-10-28

Abstract
We formulate and analyse a model describing the combined effect of mechanical deformation, dynamics of the nematic order parameter, and concentration inhomogeneities in an elastomeric mixture of a mesogenic and an isotropic component. The uniform nematic state may exhibit a long-wave instability corresponding to nematic-isotropic demixing. Numerical simulations starting from either a perfectly ordered nematic state or a quenched isotropic state show that coupling between the mesogen concentration and the nematic order parameter influences the shape and orientation of the domains formed during the demixing process. © EDP Sciences/ Società Italiana di Fisica/ Springer-Verlag 2013.

Citation
Köpf MH, Pismen LM (2013) Phase separation and disorder in doped nematic elastomers. Eur Phys J E 36. Available: http://dx.doi.org/10.1140/epje/i2013-13121-1.

Acknowledgements
We acknowledge the support by the Human Frontier Science Program (Grant RGP0052/2009-C) and hospitality of the Isaac Newton Institute for Mathematical Sciences where this paper was finalised. MHK acknowledges hospitality of OCCAM supported by Award No. KUK-C1-013-04 by KAUST and the support by LabEx ENS-ICFP: ANR-10-LABX-0010/ANR-10IDEX-0001-02 PSL*.

Publisher
Springer Nature

Journal
The European Physical Journal E

DOI
10.1140/epje/i2013-13121-1

PubMed ID
24158266

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