Phase behavior and thermodynamics of a mixture of cationic gemini and anionic surfactant

doi:10.1021/jp054323z

CORC > 化学研究所 > 中国科学院化学研究所

	Phase behavior and thermodynamics of a mixture of cationic gemini and anionic surfactant
	Wang, YJ ; Bai, GY ; Marques, EF ; Yan, HK
刊名	JOURNAL OF PHYSICAL CHEMISTRY B
	2006-03-23
卷号	110 期号:11 页码:5294-5300
ISSN号	1520-6106
DOI	10.1021/jp054323z
英文摘要	We present the phase behavior and thermodynamics of the catanionic mixture of the gemini surfactant hexanediyl-alpha,omega-bis(dodecyidimethylammonium bromide), designated here as 12-6-12Bn(2), and sodium dodecyl sulfate (SIDS) over the full range of composition, at the water-rich corner. Visual and turbidity measurements of the mixtures provide some basic macroscopic information on phase behavior. The structure of the aggregates formed spontaneously in the mixtures has been observed with TEM. As the molar fraction of SDS, X(SDS), is increased, at constant total surfactant concentration, the aggregation morphologies change gradually from gemini-rich micelles, through multiphase regions containing a precipitate (catanionic surfactant) and a vesicle region, to SDS-rich micelles. From isothermal titration calorimetry measurements, the phase boundaries and corresponding enthalpy changes for phase transitions have been obtained. The formation of the different microstructures, in particular, the spontaneously formed vesicles in the SDS-rich side, is discussed on the basis of geometric and electrostatic effects occurring in the SDS-gemini mixture.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000236294300021
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/58673]
专题	中国科学院化学研究所
通讯作者	Marques, EF
作者单位	1.Univ Porto, Ctr Invest Quim, Dept Chem, Fac Sci, P-4169007 Oporto, Portugal 2.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Wang, YJ,Bai, GY,Marques, EF,et al. Phase behavior and thermodynamics of a mixture of cationic gemini and anionic surfactant[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2006,110(11):5294-5300.
APA	Wang, YJ,Bai, GY,Marques, EF,&Yan, HK.(2006).Phase behavior and thermodynamics of a mixture of cationic gemini and anionic surfactant.JOURNAL OF PHYSICAL CHEMISTRY B,110(11),5294-5300.
MLA	Wang, YJ,et al."Phase behavior and thermodynamics of a mixture of cationic gemini and anionic surfactant".JOURNAL OF PHYSICAL CHEMISTRY B 110.11(2006):5294-5300.