Highly concentrated oil-in-water (O/W) emulsions stabilized by catanionic surfactants | |
Department | 清洁能源化学与材料实验室 |
Zhang, Na1,3; Fu, Yanxu1; Chen, Guojun1; Liang, Dong1; Abdunaibe, Aibu1; Li HG(李洪光)2; Hao JC(郝京诚)1; Li HG(李洪光) | |
2016 | |
Source Publication | Colloids and Surfaces A: Physicochemical and Engineering Aspects |
ISSN | 0927-7757 |
Volume | 495Pages:159-168 |
Abstract | The abilities of a series of catanionic surfactants (catanionics) to emulsify paraffin oil/water (PO/H2O) mixtures have been investigated. It was found that catanionics with head-to-tail structures are efficient emulsifiers, including tetradecyltrimethylammonium laurate (TTAL), decyltrimethylammonium laurate (D10TAL) and 1-methyl-3-decyl-immidazolium laurate (1-M-3-D10-ImL). Stable oil-in-water (O/W) emulsions were obtained by simple hand-shaking at low water content (down to 6% by volume), as confirmed by visual inspection, optical microscopy observations, conductivity measurements and confocal fluorescence microscopy observations. The emulsion droplets are closely-packed, imparting the samples viscoelastic properties as proved by rheological measurements. The emulsions could not be destroyed at elevated temperatures and interestingly, a slight increase of viscoelasticity was observed. Specifically for TTAL which was prepared by acid-base neutralization between tetradecyltrimethylammonium hydroxide (TTAOH) and lauric acid (LA), the influence of the composition of the ion-pair was also investigated. While the properties of the emulsions can be only slightly influenced at LA-rich side, significant influence was noted at TTAOH-rich side. We have also checked the emulsifying ability of a pseudo-gemini catanionic surfactant, bis(tetradecyltrimethylammonium) adipate ((TTA)2A), and found it could not emulsify PO/H2O mixtures under the same experimental conditions, indicating that the architecture of the catanionics also has a profound influence. |
Keyword | Viscoelastic Oil-in-water Emulsion Catanionic Surfactant Paraffin Oil |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.colsurfa.2016.02.009 |
Funding Organization | National Natural Science Foundation of China (no. 61474124, no. 21402215);the Hundred Talents Program of Chinese Academy of Sciences (Y20245YBR1) |
Indexed By | SCI |
If | 2.714 |
Language | 英语 |
Funding Project | 柔性有机太阳能电池研究组 |
compositor | 第二作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/19769 |
Collection | 清洁能源化学与材料实验室 |
Corresponding Author | Li HG(李洪光) |
Affiliation | 1.Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of Education, Jinan, Shandong 250100, China 2.State Key Laboratory of Solid Lubrication & Laboratory of Clean Energy Chemistry and Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China 3.University of Chinese Academy of Sciences, Beijing 100049, China |
Recommended Citation GB/T 7714 | Zhang, Na,Fu, Yanxu,Chen, Guojun,et al. Highly concentrated oil-in-water (O/W) emulsions stabilized by catanionic surfactants[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects,2016,495:159-168. |
APA | Zhang, Na.,Fu, Yanxu.,Chen, Guojun.,Liang, Dong.,Abdunaibe, Aibu.,...&李洪光.(2016).Highly concentrated oil-in-water (O/W) emulsions stabilized by catanionic surfactants.Colloids and Surfaces A: Physicochemical and Engineering Aspects,495,159-168. |
MLA | Zhang, Na,et al."Highly concentrated oil-in-water (O/W) emulsions stabilized by catanionic surfactants".Colloids and Surfaces A: Physicochemical and Engineering Aspects 495(2016):159-168. |
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