Special Effect of beta-Cyclodextrin on the Aggregation Behavior of Mixed   Cationic/Anionic Surfactant Systems

doi:10.1021/jp811455f

CORC > 北京大学 > 化学与分子工程学院

	Special Effect of beta-Cyclodextrin on the Aggregation Behavior of Mixed Cationic/Anionic Surfactant Systems
	Jiang, Lingxiang ; Deng, Manli ; Wang, Yilin ; Liang, Dehai ; Yan, Yun ; Huang, Jianbin
刊名	journal of physical chemistry b
	2009
关键词	INCLUSION COMPLEXES ANIONIC SURFACTANTS VESICLE TRANSITION PHASE-SEPARATION MICELLES MIXTURES WATER BOLAAMPHIPHILE MICELLIZATION UNILAMELLAR
DOI	10.1021/jp811455f
英文摘要	Controllable aggregate transitions are achieved in this work by adding due amounts of beta-cyclodextrin (beta-CD) to mixed cationic/anionic surfactant aqueous solutions. In contrast to its "aggrecrate breaking" effect in single surfactant systems, aggregate growth is observed in nonstoichiometrical mixed cationic/anionic surfactant systems upon addition of beta-CD. The aggregate growth typically undergoes a micellar elongation and a following micelle-to-vesicle transition, which in turn greatly influences the viscosity and absorbance of the solutions. A possible mechanism of this beta-CD-induced aggregate growth is proposed. In mixed cationic/anionic surfactant systems, the surfactants strongly tend to reach electroneutral equilibrium in aggregates. In the present case, added beta-CD is found to greatly facilitate the equilibrium by transferring the "major" component (whose molar fraction > 0.5) of a cationic/anionic surfactant mixture from the aggregates to beta-CD cavities. Consequently, the surfactants in the aggregates approach electroneutral mixing, in favor of low-curved aggregates such as vesicles. This work shows that beta-CD provides an additional degree of freedom to control microstructures and macroproperties for the whole class of mixed cationic/anionic surfactant systems.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000266296700013&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Physical; SCI(E); PubMed; 62; ARTICLE; 21; 7498-7504; 113
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/150180]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Jiang, Lingxiang,Deng, Manli,Wang, Yilin,et al. Special Effect of beta-Cyclodextrin on the Aggregation Behavior of Mixed Cationic/Anionic Surfactant Systems[J]. journal of physical chemistry b,2009.
APA	Jiang, Lingxiang,Deng, Manli,Wang, Yilin,Liang, Dehai,Yan, Yun,&Huang, Jianbin.(2009).Special Effect of beta-Cyclodextrin on the Aggregation Behavior of Mixed Cationic/Anionic Surfactant Systems.journal of physical chemistry b.
MLA	Jiang, Lingxiang,et al."Special Effect of beta-Cyclodextrin on the Aggregation Behavior of Mixed Cationic/Anionic Surfactant Systems".journal of physical chemistry b (2009).