Reentrant 2D Nanostructured Liquid Crystals by Competition between Molecular Packing and Conformation: Potential Design for Multistep Switching of Ionic Conductivity
| العنوان: | Reentrant 2D Nanostructured Liquid Crystals by Competition between Molecular Packing and Conformation: Potential Design for Multistep Switching of Ionic Conductivity |
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| المؤلفون: | Kazuma Hamaguchi, Huanjun Lu, Shota Okamura, Satoshi Kajiyama, Junya Uchida, Shunsuke Sato, Go Watanabe, Yoshiki Ishii, Hitoshi Washizu, Goran Ungar, Takashi Kato |
| المصدر: | ChemPhysChem. 24 |
| بيانات النشر: | Wiley, 2023. |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | Physical and Theoretical Chemistry, Atomic and Molecular Physics, and Optics |
| الوصف: | Reentrant phenomena in soft matter and biosystems have attracted considerable attention because their properties are closely related to high functionality. Here, we report a combined experimental and computational study on the self-assembly and reentrant behavior of a single-component thermotropic smectic liquid crystal toward the realization of dynamically functional materials. We have designed and synthesized a mesogenic molecule consisting of an alicyclic trans,trans -bicyclohexyl mesogen and a polar cyclic carbonate group connected by a flexible tetra(oxyethylene) spacer. The molecule exhibits an unprecedented sequence of layered smectic phases, in the order: smectic A-smectic B-reentrant smectic A. Electron density profiles and large-scale molecular dynamics simulations indicate that competition between the stacking of bicyclohexyl mesogens and the conformational flexibility of tetra(oxyethylene) chains induces this unusual reentrant behavior. Ion-conductive reentrant liquid-crystalline materials have been developed, which undergo the multistep conductivity changes in response to temperature. The reentrant liquid crystals have potential as new mesogenic materials exhibiting switching functions. |
| تدمد: | 1439-7641 1439-4235 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a735a7a6c0dc1e8168faeda35c444ac https://doi.org/10.1002/cphc.202200927 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....5a735a7a6c0dc1e8168faeda35c444ac |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14397641 14394235 |
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