Self-Assembly and Rheological Properties of a Pseudogemini Surfactant Formed in a Salt-Free Catanionic Surfactant Mixture in Water

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 清洁能源化学与材料实验室

	Self-Assembly and Rheological Properties of a Pseudogemini Surfactant Formed in a Salt-Free Catanionic Surfactant Mixture in Water
	Li Y(李燕)1; Li HG(李洪光)2 ; Chai JL(柴金岭)1; Chen MJ(陈孟军)3,4; Yang Q(杨乔)3,4; Hao JC(郝京诚)3,4
刊名	Langmuir
	2015
卷号	31 期号:41 页码:11209-11219
ISSN号	0743-7463
通讯作者	李洪光 ; 柴金岭
英文摘要	The surface and bulk properties of bola-type dicarboxylic acid (sebacic acid, SA) and zwitterionic surfactant tetradecyldimethylamine oxide (C₁₄DMAO) mixtures in aqueous solutions were studied. Surface tension measurements indicate a pronounced synergistic effect between SA and C₁₄DMAO. In bulk aqueous solutions, rich phase behavior was observed with a varied SA-to-C₁₄DMAO ratio (ρ) and a total surfactant concentration. Typically at ρ = 0.5, a novel pseudogemini surfactant (C₁₄-S-C₁₄) forms, driven by electrostatic interaction and hydrogen bonding. The C₁₄-S-C₁₄/H₂O system exhibits rich phase behavior induced by the transition of aggregates. With increasing concentration of C₁₄-S-C₁₄, one can observe a viscous L₁phase, an L₁/L_α two-phase region where a birefringent L_α phase is on the top of an L₁ phase, a single L_α phase, and finally a mixture of an L_αphase and a precipitate. Microstructures formed in the L_α phases were determined by freeze−fracture transmission electron microscopy (FF-TEM) and cryogenic-transmission electron microscopy (cryo-TEM) observations. Polymorphic aggregation behavior was observed with the formation of a variety of bilayer structures including unilamellar vesicles, onions, and open and hyperbranched bilayers. Rheological measurements showed that the Lα phases are viscoelastic and sensitive to temperature where a quick loss of viscoelasticity was observed at elevated temperature.
学科主题	材料科学与物理化学
收录类别	SCI
资助信息	the National Natural Science Foundation of China (nos. 21476133;61474124;21420102006);the Hundred Talents Program of the Chinese Academy of Sciences (Y20245YBR1)
语种	英语
WOS记录号	WOS:000363347000009
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/18861]
专题	兰州化学物理研究所_清洁能源化学与材料实验室
作者单位	1.Shandong Normal Univ, Coll Chem Chem Engn & Mat Sci, Collaborat Innovat Ctr Functionalized Probes Chem, Jinan 250014, Shandong, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, Lab Clean Energy Chem & Mat, Lanzhou 730000, Gansu, Peoples R China 3.Shandong Univ, Key Lab Colloid & Interface Chem, Minist Educ, Jinan 250100, Shandong, Peoples R China 4.Shandong Univ, Key Lab Special Aggregated Mat, Minist Educ, Jinan 250100, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Li Y,Li HG,Chai JL,et al. Self-Assembly and Rheological Properties of a Pseudogemini Surfactant Formed in a Salt-Free Catanionic Surfactant Mixture in Water[J]. Langmuir,2015,31(41):11209-11219.
APA	Li Y,Li HG,Chai JL,Chen MJ,Yang Q,&Hao JC.(2015).Self-Assembly and Rheological Properties of a Pseudogemini Surfactant Formed in a Salt-Free Catanionic Surfactant Mixture in Water.Langmuir,31(41),11209-11219.
MLA	Li Y,et al."Self-Assembly and Rheological Properties of a Pseudogemini Surfactant Formed in a Salt-Free Catanionic Surfactant Mixture in Water".Langmuir 31.41(2015):11209-11219.