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题名: Gelation of n-Butanol by a Catanionic Surfactant System
作者: Lu Ting1;  Wang Xiao-Dong1;  Zhang Tao1
关键词: Catanionic surfactant ;  Physical gel ;  n-Butanol ;  Gelation ;  Hydrogen bond
刊名: ACTA PHYSICO-CHIMICA SINICA
发表日期: 2011-02-01
DOI: 10.3866/PKU.WHXB20110211
卷: 27, 期:2, 页:486-490
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: The gelation of n-butanol was realized by a mixture of cationic and anionic surfactants (referred to as "catanionic surfactant"). In this study, we used sodium laurate/cetyltrimethylammonium bromide (SL/CTAB) as the catanionic surfactant. The rheological properties and microstructures of the n-butanol gel were studied using a rheometer and scanning electron microscopy (SEM). We found that the concentration and mole ratio of the catanionic surfactant affected the formation of the gel and n-butanol was only efficiently gelled in the presence of the catanionic surfactant at a suitable concentration and mole ratio. When we fixed the concentration of one component in the catanionic surfactant system, the gel viscosity increased with the concentration of the other component on the basis of gel formation. This gel was a non-Newtonian fluid and showed a shear-thinning property in rheological experiments. In addition, SEM results showed that the gel had a representative three-dimensional network structure, which was composed of zonal fibers with uniform thickness. Further investigation indicates that the hydrophobic effect between the hydrocarbon chains, the electrostatic attraction between the polar headgroups, and the hydrogen bond interaction between the surfactants and n-butanol play an important role in gel formation.
关键词[WOS]: ORGANIC LIQUIDS ;  CATIONIC GEMINI ;  BIOMATERIALS ;  TRANSITION ;  MOLECULES ;  HYDROGELS ;  GELATORS ;  SALT
语种: 英语
WOS记录号: WOS:000286597200034
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142347
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning Prov, Peoples R China

Recommended Citation:
Lu Ting,Wang Xiao-Dong,Zhang Tao. Gelation of n-Butanol by a Catanionic Surfactant System[J]. ACTA PHYSICO-CHIMICA SINICA,2011,27(2):486-490.
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