Properties of mixed micelles of cationic gemini surfactants and nonionic surfactant triton X-100: Effects of the surfactant composition and the spacer length
文献类型：期刊论文
| 作者 | Wang, XY; Wang, JB; Wang, YL; Ye, JP; Yan, HK; Thomas, RK |
| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2005-06-15 |
| 卷号 | 286期号:2页码:739-746 |
| 关键词 | Mixed Micelles Gemini Surfactants Tx 100 Surfactant Composition Spacer Length |
| ISSN号 | 0021-9797 |
| DOI | 10.1016/j.jcis.2005.01.084 |
| 英文摘要 | The mixed micelles of cationic gemini surfactants C12CSC12Br2 (S = 3, 6, and 12) with the nonionic surfactant Triton X-100 (TX100) have been studied by steady-state fluorescence, time-resolved fluorescence quenching, electrophoretic light scattering, and electron spin resonance. Both the surfactant composition and the spacer length are found to influence the properties of mixed micelles markedly. The total aggregation number of alkyl chains per micelle (N-T) goes through a minimum at X-TX100 = 0.8. Meanwhile, the micropolarity of the mixed micelles decreases with increasing X-TX100, while the microviscosity increases. The presence of minimum in NT is explained in terms of the competition of the reduction of electrostatic repulsion between headgroups of cationic gemini surfactant with the enhancement of steric repulsion between hydrophilic headgroups of TX100 caused by the addition of TX100. The variations of micropolarity and microviscosity indicate that the incorporation of TX100 to the gemini surfactants leads to a more compact and hydrophobic micellar structure. Moreover, for the C12C3C12Br2/TX100 mixed micelle containing C12C3C12Br2 with a shorter spacer, the more pronounced decrease of NT at X-TX100 lower than 0.8 may be attributed to the larger steric repulsion between headgroups of TX100. Meanwhile, the increase of microviscosity and the decrease of micropolarity are more marked for the C12C12C12Br2/TX100 mixed micelle, owing to the looped conformation of the longer spacer Of C12C12C12Br2. (c) 2005 Elsevier Inc. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000229380300040 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/57651]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, XY |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Key Lab Colloid & Interface Sci, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Key Lab Photochem, Beijing 100080, Peoples R China 3.Univ Oxford, Phys & Theoret Chem Lab, Oxford OX1 3QZ, England |
| 推荐引用方式 GB/T 7714 | Wang, XY,Wang, JB,Wang, YL,et al. Properties of mixed micelles of cationic gemini surfactants and nonionic surfactant triton X-100: Effects of the surfactant composition and the spacer length[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2005,286(2):739-746. |
| APA | Wang, XY,Wang, JB,Wang, YL,Ye, JP,Yan, HK,&Thomas, RK.(2005).Properties of mixed micelles of cationic gemini surfactants and nonionic surfactant triton X-100: Effects of the surfactant composition and the spacer length.JOURNAL OF COLLOID AND INTERFACE SCIENCE,286(2),739-746. |
| MLA | Wang, XY,et al."Properties of mixed micelles of cationic gemini surfactants and nonionic surfactant triton X-100: Effects of the surfactant composition and the spacer length".JOURNAL OF COLLOID AND INTERFACE SCIENCE 286.2(2005):739-746. |
入库方式： OAI收割
来源：化学研究所
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