Manipulation of Liquid Crystalline Properties by Dynamic Covalent Chemistry─En Route to Adaptive Materials - Archive ouverte HAL Access content directly
Journal Articles ACS Applied Materials & Interfaces Year : 2022

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

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Abstract

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 F-19 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.
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hal-03749072 , version 1 (10-08-2022)

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Meik Blanke, Leona Postulka, Isabelle Ciara, Francesco D’acierno, Marcus Hildebrandt, et al.. Manipulation of Liquid Crystalline Properties by Dynamic Covalent Chemistry─En Route to Adaptive Materials. ACS Applied Materials & Interfaces, 2022, 14 (14), pp.16755-16763. ⟨10.1021/acsami.2c03241⟩. ⟨hal-03749072⟩

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