Les élastomères cristaux liquides: Comportement élastique

Les élastomères cristaux liquides: Comportement élastique

Liquid Crystal Elastomers (LCE) are materials that present unique elastic properties: not only their elastic behavior changes as a function of the phase and most abruptly near the phase transitions, but also due to the possibility of spontaneous elongation. In this paper we introduce the main properties of the LCE, and we discuss the elasticity of these materials based on the thermodynamical stability of their networks. The possibility of spontaneous elongation is interpreted theoretically according to the formulation proposed by P.-G. de Gennes, by adapting the expressions of Landau, an approach known as the Landau-de Gennes theory.

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Main Authors: Bispo,Miguel, Donnio,Bertrand, Guillon,Daniel
Format: Digital revista
Language:French
Published: Sociedade Portuguesa de Materiais 2007
Online Access:http://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-83122007000200007
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spelling oai:scielo:S0870-831220070002000072008-10-24Les élastomères cristaux liquides: Comportement élastiqueBispo,MiguelDonnio,BertrandGuillon,Daniel Liquid Crystals Elastomers Artificial Muscles Liquid Crystal Elastomers (LCE) are materials that present unique elastic properties: not only their elastic behavior changes as a function of the phase and most abruptly near the phase transitions, but also due to the possibility of spontaneous elongation. In this paper we introduce the main properties of the LCE, and we discuss the elasticity of these materials based on the thermodynamical stability of their networks. The possibility of spontaneous elongation is interpreted theoretically according to the formulation proposed by P.-G. de Gennes, by adapting the expressions of Landau, an approach known as the Landau-de Gennes theory.info:eu-repo/semantics/openAccessSociedade Portuguesa de MateriaisCiência & Tecnologia dos Materiais v.19 n.3-4 20072007-07-01info:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-83122007000200007fr
institution SCIELO
collection OJS
country Portugal
countrycode PT
component Revista
access En linea
databasecode rev-scielo-pt
tag revista
region Europa del Sur
libraryname SciELO
language French
format Digital
author Bispo,Miguel
Donnio,Bertrand
Guillon,Daniel
spellingShingle Bispo,Miguel
Donnio,Bertrand
Guillon,Daniel
Les élastomères cristaux liquides: Comportement élastique
author_facet Bispo,Miguel
Donnio,Bertrand
Guillon,Daniel
author_sort Bispo,Miguel
title Les élastomères cristaux liquides: Comportement élastique
title_short Les élastomères cristaux liquides: Comportement élastique
title_full Les élastomères cristaux liquides: Comportement élastique
title_fullStr Les élastomères cristaux liquides: Comportement élastique
title_full_unstemmed Les élastomères cristaux liquides: Comportement élastique
title_sort les élastomères cristaux liquides: comportement élastique
description Liquid Crystal Elastomers (LCE) are materials that present unique elastic properties: not only their elastic behavior changes as a function of the phase and most abruptly near the phase transitions, but also due to the possibility of spontaneous elongation. In this paper we introduce the main properties of the LCE, and we discuss the elasticity of these materials based on the thermodynamical stability of their networks. The possibility of spontaneous elongation is interpreted theoretically according to the formulation proposed by P.-G. de Gennes, by adapting the expressions of Landau, an approach known as the Landau-de Gennes theory.
publisher Sociedade Portuguesa de Materiais
publishDate 2007
url http://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-83122007000200007
work_keys_str_mv AT bispomiguel leselastomerescristauxliquidescomportementelastique
AT donniobertrand leselastomerescristauxliquidescomportementelastique
AT guillondaniel leselastomerescristauxliquidescomportementelastique
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