Smectic A liquid single crystal elastomershard! Soft, soft!!
نویسندگان
چکیده
منابع مشابه
Localized soft elasticity in liquid crystal elastomers
Synthetic approaches to prepare designer materials that localize deformation, by combining rigidity and compliance in a single material, have been widely sought. Bottom-up approaches, such as the self-organization of liquid crystals, offer potential advantages over top-down patterning methods such as photolithographic control of crosslink density, relating to the ease of preparation and fidelit...
متن کاملSoft elasticity in smectic elastomers.
We investigate the soft elastic modes of smectic elastomers, that is shape change without energy cost. We use a microscopic model for their nonlinear elasticity, similar to those used for nematic elastomers. We consider two different phases of smectic elastomer; the biaxial smectic A for a simple illustration, and smectic C phases which are of great practical significance. We show that only one...
متن کاملSoft elasticity in biaxial smectic and smectic-C elastomers.
Ideal (monodomain) smectic-A elastomers cross-linked in the smectic-A phase are simply uniaxial rubbers, provided deformations are small. From these materials smectic-C elastomers are produced by a cooling through the smectic-A to smectic-C phase transition. At least in principle, biaxial smectic elastomers could also be produced via cooling from the smectic-A to a biaxial smectic phase. These ...
متن کاملSoft Elasticity in Main Chain Liquid Crystal Elastomers
Main chain liquid crystal elastomers exhibit several interesting phenomena, such as three different regimes of elastic response, unconventional stress-strain relationship in one of these regimes, and the shape memory effect. Investigations are beginning to reveal relationships between their macroscopic behavior and the nature of domain structure, microscopic smectic phase structure, relaxation ...
متن کامل”Soft elasticity” - deformation without resistance in liquid crystal elastomers
Polymeric nematic liquid crystals crosslinked into elastomers (solid liquid
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ژورنال
عنوان ژورنال: Liquid Crystals Today
سال: 2001
ISSN: 1358-314X,1464-5181
DOI: 10.1080/14645180110074792