Solvent effect on the aggregate of fluorinated gemini surfactant at silica surface
文献类型：期刊论文
| 作者 | Song, Xiaoyan; Li, Peixun; Wang, Yilin; Dong, Chuchuan; Thomas, Robert K. |
| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2006-12-01 |
| 卷号 | 304期号:1页码:37-44 |
| 关键词 | Fluorinated Gemini Surfactants Surfactant Adsorption Silica Surface Organic Solvent Effect |
| ISSN号 | 0021-9797 |
| DOI | 10.1016/j.jcis.2006.08.045 |
| 英文摘要 | The aggregate states of partially fluorinated gemini surfactant [(CF3)(2)CF(CF2)(2)(CH2)(10)N(CH3)(2)](2)(CH2)(6)Br-2 ((C5C10)-C-F-C-6-C10C5F) on silica surface were investigated with atomic force microscopy (AFM) and water contact angle (CA) measurement by analyzing the effects of bulk concentration and adsorption time on stack state. On surfactan t- adsorbed silica surfaces, there was a flat surface layer interspersed with some scattering surfactant aggregates. In the case of short adsorption times, the aggregates would be hemisphere. In the case of Ion-, adsorption times, the aggregates would be present in the form of bilayers. With the increase of bulk concentration, the adsorbed amount was enlarged and the surface layer became more compact. The formation of patchy bilayer aggregates indicated the saturation of the surface layer. Furthermore, organic solvent effects on the aggregate state of the surfactant on a silica surface were studied with four organic solvents, including n-hexane, dehydrated ethanol, 1, 1,2-trichloro- 1,2,2-trifluoroethane, and toluene. With the treatment of different organic solvents, the hemisphere aggregates on the surface layer can rearrange into spherical bilayer, rodlike monolayer, and branched rodlike monolayer aggregates, respectively. The polarity of solvents and affinity of organic solvents for surfactant molecules may have a great impact on the stack state of the fluorinated gemini surfactant molecules. (c) 2006 Elsevier Inc. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000241593100005 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/59133]  |
| 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 100080, Peoples R China 2.Univ Oxford, Phys & Theoret Chem Lab, Phys Chem Lab, Oxford OX1 3QZ, England |
| 推荐引用方式 GB/T 7714 | Song, Xiaoyan,Li, Peixun,Wang, Yilin,et al. Solvent effect on the aggregate of fluorinated gemini surfactant at silica surface[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2006,304(1):37-44. |
| APA | Song, Xiaoyan,Li, Peixun,Wang, Yilin,Dong, Chuchuan,&Thomas, Robert K..(2006).Solvent effect on the aggregate of fluorinated gemini surfactant at silica surface.JOURNAL OF COLLOID AND INTERFACE SCIENCE,304(1),37-44. |
| MLA | Song, Xiaoyan,et al."Solvent effect on the aggregate of fluorinated gemini surfactant at silica surface".JOURNAL OF COLLOID AND INTERFACE SCIENCE 304.1(2006):37-44. |
入库方式： OAI收割
来源：化学研究所
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