Counterion-Induced Nanosheet-to-Nanofilament Transition of Lyotropic Bent-Core Liquid Crystals

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	Counterion-Induced Nanosheet-to-Nanofilament Transition of Lyotropic Bent-Core Liquid Crystals
	Huang, Youju; Wang, Daoliang; Yan, Qi; Zhong, Fei; Li, Yahui; Fu, Ming; Meng, Lingpu; Li, Liangbin
刊名	LANGMUIR
	2018
卷号	34 期号:43 页码:13006-13013
关键词	Folic-acid Derivatives Phase-transitions Supramolecular Chirality Functional Materials Shaped Molecules Smectic Phase Assemblies Induction Transport Behavior
英文摘要	The smart flexibility of phase transitions in liquid crystals (LCs) makes them suitable for various applications and is an important research field in contemporary science, engineering, and technology. Unlike most reports focused on bent-core LCs in the thermotropic situation, in our present study, we designed and synthesized a fully rigid bent-core molecule with the sulfonic acid group replacing conventional flexible chains. A rich variety of counterion-induced supramolecular LC phase behaviors have been systematically investigated. It was found that the smectic phase with nanosheets tends to transform to the hexagonal phase with nanofilaments when the protons of the sulfonic acid group are partially replaced by alkali metal ions. The experimental results show that the nanoaggregate and phase transition are controlled by the displacing ratio of alkali metal ions rather than the molecular concentration. Another interesting feature is that the achiral bent-core molecules self-assemble into columns by helical stacking and present macroscopic chirality, indicating that spontaneous chiral symmetry breaking occurs in the columnar phase. The fully rigid bent-core molecules reveal surprisingly hierarchical molecular self-assemblies with the smectic-to-hexagonal phase transition, which was not previously observed in supramolecular complexes. The findings will provide new possibilities for applications in LC-based photonic devices, biosystem switches, and supramolecular actuators.
学科主题	Engineering
语种	英语
公开日期	2018-12-04
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/17101]
专题	2018专题
推荐引用方式 GB/T 7714	Huang, Youju,Wang, Daoliang,Yan, Qi,et al. Counterion-Induced Nanosheet-to-Nanofilament Transition of Lyotropic Bent-Core Liquid Crystals[J]. LANGMUIR,2018,34(43):13006-13013.
APA	Huang, Youju.,Wang, Daoliang.,Yan, Qi.,Zhong, Fei.,Li, Yahui.,...&Li, Liangbin.(2018).Counterion-Induced Nanosheet-to-Nanofilament Transition of Lyotropic Bent-Core Liquid Crystals.LANGMUIR,34(43),13006-13013.
MLA	Huang, Youju,et al."Counterion-Induced Nanosheet-to-Nanofilament Transition of Lyotropic Bent-Core Liquid Crystals".LANGMUIR 34.43(2018):13006-13013.