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Separation of chiral phases by compression: kinetic localization of the enantiomers in a monolayer of racemic amphiphiles viewed as mixing cholesteric liquid crystals
Iwamoto, M; Wu, CX; Zhong-Can, OY; Iwamoto, M , Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, 2-12-1 O Okayama, Tokyo 152, Japan.
1998
发表期刊CHEMICAL PHYSICS LETTERS
ISSN0009-2614
卷号285期号:41035页码:306-312
摘要A monolayer of amphiphiles is studied as a film of cholesteric liquid crystal (ChLC) mixed by the left-and right-handed chiral enantiomers. The equilibrium equations for the chiral phase separation (CPS) order parameter and molecular orientation pattern are derived by minimizing the free energy of the mixing ChLC. We found a one-dimensional (1D) periodic localization of the enantiomers, a stripe-type of CPS. By incorporating the free energy of the stripe-CPS into the thermodynamic calculation, we show that its pressure-area isotherms behave like a spatial 2D van der Waals equation of state, and must have a pressure-plateau region for the phase transition from racemic phase to CPS. This gives a clear explanation of the CPS in a racemic monolayer. (C) 1998 Elsevier Science B.V.
部门归属Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, Tokyo 152, Japan; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Langmuir Monolayers Crystallization
学科领域Physics
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收录类别SCI
WOS记录号WOS:000072935400004
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被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12334
专题理论物理所SCI论文
通讯作者Iwamoto, M , Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, 2-12-1 O Okayama, Tokyo 152, Japan.
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Iwamoto, M,Wu, CX,Zhong-Can, OY,et al. Separation of chiral phases by compression: kinetic localization of the enantiomers in a monolayer of racemic amphiphiles viewed as mixing cholesteric liquid crystals[J]. CHEMICAL PHYSICS LETTERS,1998,285(41035):306-312.
APA Iwamoto, M,Wu, CX,Zhong-Can, OY,&Iwamoto, M , Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, 2-12-1 O Okayama, Tokyo 152, Japan..(1998).Separation of chiral phases by compression: kinetic localization of the enantiomers in a monolayer of racemic amphiphiles viewed as mixing cholesteric liquid crystals.CHEMICAL PHYSICS LETTERS,285(41035),306-312.
MLA Iwamoto, M,et al."Separation of chiral phases by compression: kinetic localization of the enantiomers in a monolayer of racemic amphiphiles viewed as mixing cholesteric liquid crystals".CHEMICAL PHYSICS LETTERS 285.41035(1998):306-312.
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