Elucidation of the effect of domain boundary on the mechanism of surface freezing phenomena
阐明畴边界对表面冻结现象机制的影响
基本信息
- 批准号:22550017
- 负责人:
- 金额:$ 3万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2010
- 资助国家:日本
- 起止时间:2010 至 2012
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Surface freezing (SF) is the phenomenon of the two-dimensional condensed film formation at liquid surface at temperature Ts which is a few degrees above the bulk freezing temperature Tb. Deutsch et al. have claimed that liquid alkanes with 16~50 carbon atoms and alkanols with 10~28 ones exhibit SF phenomena. In this study, we aim at discussing the miscibility of molecules at the surface of the binary liquid mixture of hydrocarbon and fluorocarbon compounds from the viewpoint of the mutual interaction between the film forming molecules by surface tensiometry and X-ray reflection.The estimation of surface composition and surface excess thermodynamic quantity and the determination of electron density profile along surface normal indicated followings; (1) the homologous alkane and alcohol molecules with chain length difference by only one mix almost ideally at the surface, (2) hybrid alkane and alkanol with fluorocarbon chain form condensed phase domain in the surface liquid layer, and (2) the molecular distribution in the SF bilayer is heterogeneous in the mixed alkanol - hybrid alkanol system.
表面冻结(SF)是在温度Ts(比本体冻结温度Tb高几度)下在液体表面形成二维冷凝膜的现象。多伊奇等人曾指出,碳原子数为16~50的液态烷烃和碳原子数为10~28的液态烷醇都具有SF现象。本文利用表面张力法和X射线反射法,从成膜分子间相互作用的角度,探讨了碳氢化合物和氟碳化合物二元混合液表面分子的可吸附性,估算了表面组成和表面过剩热力学量,并测定了沿着表面法线的电子密度分布;(1)链长相差仅一个的同系烷烃和醇分子在表面几乎理想地混合;(2)具有氟碳链的杂化烷烃和烷醇在表面液层中形成凝聚相区;(2)在混合烷醇-杂化烷醇体系中,SF双层膜中的分子分布是不均匀的。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Surface freezing of alkane-alkane, alkane-fluoroalkane, and alkanol-alkanol mixtures
烷烃-烷烃、烷烃-氟烷烃和烷醇-烷醇混合物的表面冷冻
- DOI:
- 发表时间:2012
- 期刊:
- 影响因子:0
- 作者:Miyako Tsuura;Takanori Takiue
- 通讯作者:Takanori Takiue
Surface Freezing of Alkane-Alkane andAlkane-Semifluorinated Alkane Mixtures
烷烃-烷烃和烷烃-半氟化烷烃混合物的表面冷冻
- DOI:
- 发表时间:2010
- 期刊:
- 影响因子:0
- 作者:M. Shimasaki;T. Takiue(他2名)
- 通讯作者:T. Takiue(他2名)
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TAKIUE Takanori其他文献
TAKIUE Takanori的其他文献
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{{ truncateString('TAKIUE Takanori', 18)}}的其他基金
Elucidation of principle for microscopic domain formation by quantitative analysis of line adsorption
通过线吸附定量分析阐明微区形成原理
- 批准号:
16H04135 - 财政年份:2016
- 资助金额:
$ 3万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Elucidation of ion distribution and molecular orientation at liquid/liquid interface by total reflection XAFS
通过全反射 XAFS 阐明液/液界面的离子分布和分子取向
- 批准号:
15K13727 - 财政年份:2015
- 资助金额:
$ 3万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Elucidation of Role of Line Tension on Domain Formation in Gibbs Adsorbed Films at Liquid/Liquid Interfaces
阐明线张力对液/液界面吉布斯吸附膜域形成的作用
- 批准号:
19550021 - 财政年份:2007
- 资助金额:
$ 3万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Molecular level structure analysis of Gibbs film stabilized by interaction between mesoscopic domains
通过介观域之间的相互作用稳定吉布斯薄膜的分子水平结构分析
- 批准号:
16550017 - 财政年份:2004
- 资助金额:
$ 3万 - 项目类别:
Grant-in-Aid for Scientific Research (C)