2021 Fiscal Year Final Research Report
Correlation between molecular packing modes and physical properties in smectic liquid crystal phases on the basis of a new structural classification
| Project/Area Number |
19K05363
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 32010:Fundamental physical chemistry-related
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| Research Institution | University of Tsukuba |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
沓水 祥一 岐阜大学, 工学部, 教授 (80214964)
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Keywords | 液晶 / 層状構造 / 層状液晶相 / スメクチック相 / アルキル鎖 / 分子充填 / キュービック液晶相 |
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| Outline of Final Research Achievements |
To investigate physical properties of molecular assemblies needs understanding of a packing mode of molecules in them. Previously, we have clarified two packing modes of flexible alkyl-chain of molecule in layered liquid crystal phases. On the basis of the packing modes, we searched and synthesized liquid crystal molecules with the two packing modes and investigated their structural and physical properties in this study. As a result, we have clarified the relation among the structures, packing modes of alkyl-chain, physical properties, phase stabilization, and phase transition in a variety of liquid crystals with layered structure.
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| Free Research Field |
物性物理化学
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| Academic Significance and Societal Importance of the Research Achievements |
層状構造を有する液晶相は，液晶物質の新しい応用を目指した研究が精力的に行われている．しかし，液晶相には流動性があるため，層状液晶相の層を構成する分子がどのように充填しているかについては解明されておらず，新たな機能性を持つ液晶分子の分子設計を行う上でもこの分子の充填様式の解明は課題であった．また，凝集構造と密接に関係する物性への影響の解明も課題であった．数種の液晶物質に対してこれらを研究した本研究の成果は，層状液晶の学理構築の礎に寄与するだけでなく，層状液晶相の応用にも資するものである．
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