Phase separation and disorder in doped nematic elastomers

M. H. Köpf; L. M. Pismen

doi:10.1140/epje/i2013-13121-1

Phase separation and disorder in doped nematic elastomers

M. H. Köpf, L. M. Pismen

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

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.

Original language	English (US)
Journal	The European Physical Journal E
Volume	36
Issue number	10
DOIs	https://doi.org/10.1140/epje/i2013-13121-1
State	Published - Oct 28 2013
Externally published	Yes

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10.1140/epje/i2013-13121-1

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title = "Phase separation and disorder in doped nematic elastomers",

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. {\textcopyright} EDP Sciences/ Societ{\`a} Italiana di Fisica/ Springer-Verlag 2013.",

author = "K{\"o}pf, {M. H.} and Pismen, {L. M.}",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): KUK-C1-013-04 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*. This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

year = "2013",

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doi = "10.1140/epje/i2013-13121-1",

language = "English (US)",

volume = "36",

journal = "The European Physical Journal E",

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T1 - Phase separation and disorder in doped nematic elastomers

AU - Köpf, M. H.

AU - Pismen, L. M.

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): KUK-C1-013-04 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*. This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2013/10/28

Y1 - 2013/10/28

N2 - 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.

AB - 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.

UR - http://hdl.handle.net/10754/599177

UR - http://link.springer.com/10.1140/epje/i2013-13121-1

UR - http://www.scopus.com/inward/record.url?scp=84893032422&partnerID=8YFLogxK

U2 - 10.1140/epje/i2013-13121-1

DO - 10.1140/epje/i2013-13121-1

M3 - Article

C2 - 24158266

SN - 1292-8941

VL - 36

JO - The European Physical Journal E

JF - The European Physical Journal E

IS - 10

ER -

Phase separation and disorder in doped nematic elastomers

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