Synthesis, aggregation behavior and interfacial activity of branched alkylbenzenesulfonate gemini surfactants

doi:10.1016/j.jcis.2011.05.087

CORC > 化学研究所 > 中国科学院化学研究所

	Synthesis, aggregation behavior and interfacial activity of branched alkylbenzenesulfonate gemini surfactants
	Zhang, Qun 1; Tian, Maozhang 1; Han, Yuchun 1; Wu, Chunxian 1; Li, Zhibo 2; Wang, Yilin 1
刊名	JOURNAL OF COLLOID AND INTERFACE SCIENCE
	2011-10-15
卷号	362 期号:2 页码:406-414
关键词	Gemini Surfactants Branched Surfactants Interfacial Tension Vesicle
ISSN号	0021-9797
DOI	10.1016/j.jcis.2011.05.087
英文摘要	Branched alkylbenzenesulfonate gemini surfactants: sodium 6,6'-(propane-1,3-diylbis(oxy))bis(3-(2-propylpentyl)benzenesulfonate) (C8BC3C8B), sodium 6,6'-(propane-1,3-diylbis(oxy))bis(3-(3,5,5-trimethylhexyl)benzenesulfonate) (C9BC3C9B), and sodium 6,6'-(propane-1,3-diylbis(oxy))bis(3-(2,4, 4-trimethylpentan-2-yl)benzenesulfonate) (T-C8BC3C8B) have been synthesized. Their interfacial activity and aggregation behavior in aqueous solution were studied by surface/interface tension measurement, electrical conductivity, isothermal titration microcalorimetry, (1)H NMR spectroscopy, dynamic light scattering, steady-state fluorescence and cryogenic transmission electron microscopy. The critical aggregation concentration (CAC) and the minimum average surface area/molecule (A(min)) decrease with the decrease of the branching factor, i.e., in the order of T-C8BC3C8B, C8BC3C8B and C9BC3C9B. Moreover, alkyl side chain branches generate much more significant increases in CAC and A(min) for the gemini surfactants than single-chain surfactants. However, the branching factor does not change the air/water surface tension at CAC regularly. Instead, the air/water surface tension decreases with the increase of the carbon number of the hydrocarbon chains. In addition, it is noted that the branched gemini surfactants display high efficiency in reducing toluene/water interfacial tension. Interestingly, the increase in the branching factor leads to much more endothermic enthalpy of aggregation. All these three surfactants form spherical vesicles in aqueous solution and may present a parallel-displaced structure with a directional arrangement of the benzene ring in the vesicles. (C) 2011 Elsevier Inc. All rights reserved.
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000294142500021
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/72707]
专题	中国科学院化学研究所
通讯作者	Wang, Yilin
作者单位	1.Chinese Acad Sci, Inst Chem, Key Lab Colloid & Interface Sci, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Qun,Tian, Maozhang,Han, Yuchun,et al. Synthesis, aggregation behavior and interfacial activity of branched alkylbenzenesulfonate gemini surfactants[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2011,362(2):406-414.
APA	Zhang, Qun,Tian, Maozhang,Han, Yuchun,Wu, Chunxian,Li, Zhibo,&Wang, Yilin.(2011).Synthesis, aggregation behavior and interfacial activity of branched alkylbenzenesulfonate gemini surfactants.JOURNAL OF COLLOID AND INTERFACE SCIENCE,362(2),406-414.
MLA	Zhang, Qun,et al."Synthesis, aggregation behavior and interfacial activity of branched alkylbenzenesulfonate gemini surfactants".JOURNAL OF COLLOID AND INTERFACE SCIENCE 362.2(2011):406-414.