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Localized soft elasticity in liquid crystal elastomers.

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Ware, Taylor H 
Biggins, John S 
Shick, Andreas F 
White, Timothy J 


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 fidelity of resolution. Here, we report on the directed self-assembly of materials with spatial and hierarchical variation in mechanical anisotropy. The highly nonlinear mechanical properties of the liquid crystalline elastomers examined here enables strain to be locally reduced >15-fold without introducing compositional variation or other heterogeneities. Each domain (⩾0.01 mm(2)) exhibits anisotropic nonlinear response to load based on the alignment of the molecular orientation with the loading axis. Accordingly, we design monoliths that localize deformation in uniaxial and biaxial tension, shear, bending and crack propagation, and subsequently demonstrate substrates for globally deformable yet locally stiff electronics.


This is the final version of the article. It first appeared from Nature Publishing Group via


physical sciences, applied physics, materials science

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Nat Commun

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Springer Science and Business Media LLC
Engineering and Physical Sciences Research Council (EP/E051251/1)
Engineering and Physical Sciences Research Council (EP/J017639/1)
T.H.W., A.F.S. and T.J.W. would like to acknowledge financial support from the Materials and Manufacturing Directorate and the Office of Scientific Research of the Air Force Research Laboratory.