Manipulation of Liquid Crystalline Properties by Dynamic Covalent Chemistry─En Route to Adaptive Materials.

Autor:	Blanke M; Organic Chemistry, University of Duisburg-Essen, Universitätsstraße 7, 45117 Essen, Germany., Postulka L; Organic Chemistry, University of Duisburg-Essen, Universitätsstraße 7, 45117 Essen, Germany., Ciara I; Organic Chemistry, University of Duisburg-Essen, Universitätsstraße 7, 45117 Essen, Germany., D'Acierno F; Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver BC V6T 1Z1, Canada.; Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver BC V6T 1Z1, Canada., Hildebrandt M; Physical Chemistry, University of Duisburg-Essen, Universitätsstraße 2, 45117 Essen, Germany., Gutmann JS; Physical Chemistry, University of Duisburg-Essen, Universitätsstraße 2, 45117 Essen, Germany., Dong RY; Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver BC V6T 1Z1, Canada., Michal CA; Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver BC V6T 1Z1, Canada.; Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver BC V6T 1Z1, Canada., Giese M; Organic Chemistry, University of Duisburg-Essen, Universitätsstraße 7, 45117 Essen, Germany.
Jazyk:	angličtina
Zdroj:	ACS applied materials & interfaces [ACS Appl Mater Interfaces] 2022 Apr 13; Vol. 14 (14), pp. 16755-16763. Date of Electronic Publication: 2022 Apr 04.
DOI:	10.1021/acsami.2c03241
Abstrakt:	Dynamic covalent bonds bear great potential for the development of adaptive and self-healing materials. Herein, we introduce a versatile concept not only for the design of low-molecular-weight liquid crystals but also for their in situ postsynthetic modification by using the dynamic covalent nature of imine bonds. The methodology allows systematic investigations of structure-property relationships as well as the manipulation of the materials' behavior (liquid crystallinity) and the introduction of additional properties (here, fluorescence) by a solvent-free method. For the first time, the transamination reaction is followed by variable-temperature 19 F solid-state NMR in the mesophase, providing insights into the reaction dynamics in a liquid crystalline material. Finally, the application potential for the design of liquid crystalline materials with adaptive properties is demonstrated by a sequential combination of these reactions.
Databáze:	MEDLINE
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