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题名: Tilting phase transition of amphiphile monolayers at the air-water interface: Physically reasoning phase portion in a phase diagram
作者: Iwamoto, M ;  Ou-Yang, ZC
刊名: JOURNAL OF CHEMICAL PHYSICS
出版日期: 2002
卷号: 117, 期号:16, 页码:7705-7711
关键词: MAXWELL-DISPLACEMENT CURRENT ;  LANGMUIR-MONOLAYERS ;  X-RAY ;  SYMMETRY ;  GENERATION
学科分类: Physics
通讯作者: Iwamoto, M , Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528552, Japan.
部门归属: Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, Tokyo 1528552, Japan; Natl Tsing Hua Univ, Ctr Adv Study, Beijing 10084, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: The untilting to tilting (U-->t) phase transition of amphiphile monolayers at the water-air interface is studied as a distortion of the orthogonally hexagonal orientation of molecules by a competition among entropy, Lennard-Jones potential, and the work done by surface and bulk pressures (Pi,P). The U/t phase portion in the Pi-T diagram is derived as an approximately linear van der Waals equation Pi=kT/2A(0)-Pl(0) with A(0), l(0) being the molecular area and chain length, respectively, at the U phase. A comparison with experiment in monolayers of C-14-C-24 acids [see, e.g., Peterson , Langmuir 8, 2995 (1992)] shows quantitative agreement. Besides two optimal tilting directions, i.e., in the direction to a nearest neighbor (NN) and to a next-nearest neighbor (NNN), an intermediate tilt at the NN-->NNN transition is shown to be physically possible based on Selinger-Nelson theory [Phys. Rev. Lett. 61, 416 (1988)]. (C) 2002 American Institute of Physics.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000178483400033
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13412
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Iwamoto, M,Ou-Yang, ZC. Tilting phase transition of amphiphile monolayers at the air-water interface: Physically reasoning phase portion in a phase diagram[J]. JOURNAL OF CHEMICAL PHYSICS,2002,117(16):7705-7711.
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