Article

Surface-Enforced Alignment of Reprogrammable Liquid Crystalline Elastomers

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https://scholar.colorado.edu/concern/articles/f4752j24c
Abstract
  • Liquid crystalline elastomers (LCEs) are stimuli-responsive materials capable of undergoing large deformations. The thermomechanical response of LCEs is attributable to the coupling of polymer network properties and disruption of order between liquid crystalline mesogens. Complex deformations have been realized in LCEs by either programming the nematic director via surface-enforced alignment or localized mechanical deformation in materials incorporating dynamic covalent chemistries. Here, the preparation of LCEs via thiol-Michael addition reaction is reported that are amenable to surface-enforced alignment. Afforded by the thiol-Michael addition reaction, dynamic covalent bonds are uniquely incorporated in chemistries subject to surface-enforce alignment. Accordingly, LCEs prepared with complex director profiles are able to be programmed and reprogrammed by (re)activating the dynamic covalent chemistry to realize distinctive shape transformations.

     

Creator
Date Issued
  • 2022
Academic Affiliation
Journal Title
Journal Issue/Number
  • 29
Journal Volume
  • 9
Última modificación
  • 2023-09-06
Resource Type
Declaración de derechos
DOI
ISSN
  • 2198-3844
Language

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