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	Micellar growth of quaternary ammonium Gemini surfactant in aqueous solutions using dynamic light scattering
	XU, Xiao-Ming ; Xu XM(徐晓明) ; WU, Zhang-Feng ; Wu ZF(吴章锋) ; ZHANG, Chun-Yan ; Zhang CY(张春艳) ; HAN, Guo-Bin ; Han GB(韩国彬)
	2004
关键词	Gemini surfactant mean hydrodynamic radius dynamic light scattering micellar growth
英文摘要	The micellar growth of quaternary ammonium Gemini surfactants containing methylene group spacer (referred to as C-12-s-C-12, 2Br) in inorganic salt (NaBr) media was investigated by using dynamic light scattering. The size of micelles increases with increasing salt concentration or decreasing temperature or decreasing the length of spacer chain. The enlarged micelles have a shape of prolate ellipsoid or rod. Based on these mean hydrodynamic radius ((R) over bar (h)) measurements, values of the thermodynamic parameter K governing the sphere to rod transition were determined. Numerical values of enthalpy and entropy change for this transition were deduced from the linear plot of ln K vs. 1/T. The novel micellar growth Of C-12-2-C-12, 2Br was discussed. The distribution of micelle size was analyzed by using non-negatively constrained least square (NNLS) algorithm.
语种	英语
出版者	SCIENCE CHINA PRESS
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/11397]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	XU, Xiao-Ming,Xu XM,WU, Zhang-Feng,et al. Micellar growth of quaternary ammonium Gemini surfactant in aqueous solutions using dynamic light scattering[J],2004.
APA	XU, Xiao-Ming.,徐晓明.,WU, Zhang-Feng.,吴章锋.,ZHANG, Chun-Yan.,...&韩国彬.(2004).Micellar growth of quaternary ammonium Gemini surfactant in aqueous solutions using dynamic light scattering..
MLA	XU, Xiao-Ming,et al."Micellar growth of quaternary ammonium Gemini surfactant in aqueous solutions using dynamic light scattering".(2004).

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