Comparative studies of AOT and NaDEHP by fluorescence technique and z-potential (ζ) measurements

CORC > 力学研究所 > 中国科学院力学研究所 > 力学所知识产出(1956-2008)

	Comparative studies of AOT and NaDEHP by fluorescence technique and z-potential (ζ) measurements
	Luan YX; Xu GY; Sun ZW(孙祉伟); Dai GL(戴国亮); Chen YJ; Yu L
刊名	Journal of Dispersion Science and Technology
	2005
卷号	26 期号:3 页码:285-290
ISSN号	0193-2691
中文摘要	The aggregation behaviors of two surfactants with the same hydrophobic tail, sodium bis(2-ethylhexyl)sulfosuccinate (AOT) and sodium bis(2-ethylhexyl)phosphate (NaDEHP), have been investigated by the fluorescence technique and z-potential (ζ) measurements. Five fine peaks of the pyrene molecule fluorescence spectroscopy appear in the surfactant solution, and the micropolarity at which pyrene locates is monitored from the intensity ratio of the first (I1) and the third peak (I3). A wide peak around 475 nm, the emission spectra of the excimer of pyrene molecules, is observed in the NaDEHP solution, while this is not found for the AOT system. The value of I1/I3 decreases in a more limited concentration range for the AOT system than for NaDEHP, indicating that small aggregates can be more easily formed by NaDEHP molecules. The z-potential results for the aggregates formed by the two surfactants show that the interaction between AOT and PVP is stronger than that between NaDEHP and PVP.
学科主题	力学
类目[WOS]	Chemistry, Physical
研究领域[WOS]	Chemistry
收录类别	SCI
语种	英语
WOS记录号	WOS:000228901400004
公开日期	2007-06-15 ; 2007-12-05 ; 2009-06-23
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/16352]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Luan YX,Xu GY,Sun ZW,et al. Comparative studies of AOT and NaDEHP by fluorescence technique and z-potential (ζ) measurements[J]. Journal of Dispersion Science and Technology,2005,26(3):285-290.
APA	Luan YX,Xu GY,孙祉伟,戴国亮,Chen YJ,&Yu L.(2005).Comparative studies of AOT and NaDEHP by fluorescence technique and z-potential (ζ) measurements.Journal of Dispersion Science and Technology,26(3),285-290.
MLA	Luan YX,et al."Comparative studies of AOT and NaDEHP by fluorescence technique and z-potential (ζ) measurements".Journal of Dispersion Science and Technology 26.3(2005):285-290.