Temperature dependence of interfacial fluctuations of polymerized fatty acid salt multilayers

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	Temperature dependence of interfacial fluctuations of polymerized fatty acid salt multilayers
	Hu, SX ; Li, XH ; Jia, QJ ; Mai, ZH ; Li, M
刊名	JOURNAL OF CHEMICAL PHYSICS
	2005
卷号	122 期号:12
关键词	X-RAY-SCATTERING LANGMUIR-BLODGETT-FILMS ORIENTED PHOSPHOLIPID-MEMBRANES DIFFUSE-SCATTERING LIQUID-CRYSTALS POLYELECTROLYTE HYDRATION SURFACES BILAYERS LAYERS
ISSN号	0021-9606
通讯作者	Li, M (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China.
中文摘要	X-ray scattering was used to study the temperature dependence of the profile structure of polymerized 10,12-tricosadiynoic acid salt multilayers. The stacking periodicity of the multilayers was found to decrease with increasing temperature due to the conformational changes of the alkyl chains. When the samples were fully hydrated in water, the reflectivity measurement showed that the thermal fluctuations of the interfaces are enhanced with temperature, resulting in reduced ordering. Meanwhile, the diffuse scattering indicated that the thermal fluctuations renormalize the elasticity of the multilayers; both the bending and the compression moduli are reduced. Similar measurements performed in air, however, do not show this thermal enhancement although the stacking periodicity decreases in the same manner. It is implied that water might weaken the interaction between the carboxyl groups and the metal ions so that the polymerized bilayers are softened in water.
收录类别	SCI
语种	英语
公开日期	2013-09-23
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/44758]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Hu, SX,Li, XH,Jia, QJ,et al. Temperature dependence of interfacial fluctuations of polymerized fatty acid salt multilayers[J]. JOURNAL OF CHEMICAL PHYSICS,2005,122(12).
APA	Hu, SX,Li, XH,Jia, QJ,Mai, ZH,&Li, M.(2005).Temperature dependence of interfacial fluctuations of polymerized fatty acid salt multilayers.JOURNAL OF CHEMICAL PHYSICS,122(12).
MLA	Hu, SX,et al."Temperature dependence of interfacial fluctuations of polymerized fatty acid salt multilayers".JOURNAL OF CHEMICAL PHYSICS 122.12(2005).