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Supersoft elasticity in polydomain nematic elastomers

Biggins, J. S. and Warner, M. and Bhattacharya, K. (2009) Supersoft elasticity in polydomain nematic elastomers. Physical Review Letters, 103 (3). Art. No. 037802. ISSN 0031-9007.

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We consider the equilibrium stress-strain behavior of polydomain liquid crystal elastomers (PLCEs). We show that there is a fundamental difference between PLCEs cross-linked in the high temperature isotropic and low temperature aligned states. PLCEs cross-linked in the isotropic state then cooled to an aligned state will exhibit extremely soft elasticity (confirmed by recent experiments) and ordered director patterns characteristic of textured deformations. PLCEs cross-linked in the aligned state will be mechanically much harder and characterized by disclination textures.

Item Type:Article
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Bhattacharya, K.0000-0003-2908-5469
Additional Information:©2009 The American Physical Society. Received 22 April 2009; published 15 July 2009. We gratefully acknowledge the financial support of the Powell Foundation (Biggins), the Sims fund (Biggins), and the EPSRC (Bhattacharya and Warner). We thank K. Urayama for permission to reproduce the data in Fig. 2.
Funding AgencyGrant Number
Powell FoundationUNSPECIFIED
Sims fund, University of CambridgeUNSPECIFIED
Engineering and Physical Sciences Research Council (EPSRC)UNSPECIFIED
Issue or Number:3
Classification Code:PACS numbers: 61.30.Vx, 81.40.Jj, 83.80.Va
Record Number:CaltechAUTHORS:20090811-112637753
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:14954
Deposited By: Ruth Sustaita
Deposited On:11 Aug 2009 18:44
Last Modified:03 Oct 2019 00:53

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