Gas permeation through ultrathin liquid films

	Gas permeation through ultrathin liquid films
其他题名	论文其他题名
	Li J. J.; Schuring H.; Stannarius R.
	2002
发表期刊	Langmuir
ISSN	0743-7463
卷号	18 期号:1 页码:112-119
摘要	We report measurements of gas permeation through ultrathin liquid layers. The gas flux penetrating nanometer thick free-standing smectic films is determined experimentally as a function of membrane thickness and temperature. We observe an unusual film thickness dependence of the permeation in very thin films. For its interpretation, we introduce a molecular model that considers sorption and diffusion of gas molecules in the liquid film as well as the dynamic exchange between the film and the external gas phase. From the fit of experimental data, we obtain the ratio of the solubility of gas in the smectic phase and the diffusion coefficient for gas molecules in the liquid and an energy barrier for gas molecules to enter the liquid film. The measured permeation is strongly temperature dependent; at the transition to low-temperature smectic modifications with in-plane molecular positional order, the films become almost impermeable.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/25177
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Li J. J.,Schuring H.,Stannarius R.. Gas permeation through ultrathin liquid films[J]. Langmuir,2002,18(1):112-119.
APA	Li J. J.,Schuring H.,&Stannarius R..(2002).Gas permeation through ultrathin liquid films.Langmuir,18(1),112-119.
MLA	Li J. J.,et al."Gas permeation through ultrathin liquid films".Langmuir 18.1(2002):112-119.

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