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Main-Chain Nematic Side-Chain Smectic Composite Liquid Crystalline Elastomers

Published version

Published version
Peer-reviewed

Repository DOI


Change log

Authors

Guo, H 
Saed, MO 

Abstract

jats:titleAbstract</jats:title>jats:pA composite liquid crystalline elastomer is designed, combining main‐chain and side‐chain mesogenic polymers in the network, and resulting in micro‐phase separated regions of nematic and smectic ordering in the macroscopically homogeneous elastomer. A range of different fractions of the components is explored, from fully nematic main‐chain system, across to fully smectic side‐chain elastomer. Thermal phase transitions of both phases coexisting in the material are detected by calorimetry, and the nematic/smectic structure investigated by X‐ray scattering. The tensile stress–strain data reveal the key effect of such a multi‐phase composite, where the nematic fraction adds ductility while the smectic fraction increases the modulus and mechanical stiffness. Varying the composition, the authors are able to optimize the mechanical properties of this material type.</jats:p>

Description

Keywords

composites, ductility, elasticity, liquid crystalline elastomers, nematic, smectic

Journal Title

Advanced Functional Materials

Conference Name

Journal ISSN

1616-301X
1616-3028

Volume Title

Publisher

Wiley
Sponsorship
European Research Council (786659)