Self-aggregation of surfactants in water solution by NMR
文献类型：期刊论文
| 作者 | Yuan, HZ; Du, YR; Zhao, S; Yu, JY |
| 刊名 | SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY
 |
| 出版日期 | 1999-03-01 |
| 卷号 | 42期号:3页码:319-324 |
| 关键词 | self-diffusion coefficient NMR relaxation molecular motion of surfactants critical micelle concentration sodium dodecylsulfonate cetyl trimethyl ammonium bromide Triton X-100 |
| 英文摘要 | Dynamic behavior of surfactant molecules, sodium dodecyl sulfonate (SDSN), cetyl trimethyl ammonium bromide (CTAB) and triton X-100, and their micelles in water solution at various concentrations were studied by chemical shift, self diffusion coefficient (D) and nuclear magnetic resonance relaxation (T-1 and T-2) measurements. Experimental results show that there exist turning points at surfactant concentration (C) nearby the critical micelle concentration (cmc) for all of the above-mentioned parameters, which approach the constant values when C equals 5 to 10 times cmc. T-1 and T-1 measurements show that when C< cmc, Triton X-100 molecules exhibit fast isotropic motion in water solution. After micellization, the motion of hydrophobic chains is far away from the extreme narrowing condition, however, the long hydrophilic oxyethylene chains move relatively freely, although their T-1 and T-2 become shorter in comparison with those of the molecules in mono-molecular state. The behavior of the hydrophobic chains within the micellar core of SDSN and CTAB is similar to that of Triton X-100 to some extent. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Mathematics, Applied ; Mathematics |
| 研究领域[WOS] | Mathematics |
| 关键词[WOS] | NUCLEAR MAGNETIC-RESONANCE ; MIXED MICELLES ; RELAXATION ; DIFFUSION ; HYDRATION ; MOTIONS ; SYSTEMS ; H-1 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000080125600012 |
| 公开日期 | 2015-12-01 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/8384]  |
| 专题 | 武汉物理与数学研究所_2011年以前论文发表（包括2011年） |
| 作者单位 | 1.Chinese Acad Sci, Inst Phys & Math, State Key Lab Magnet Resonance, Wuhan 430071, Peoples R China 2.Chinese Acad Sci, Inst Photochem, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, HZ,Du, YR,Zhao, S,et al. Self-aggregation of surfactants in water solution by NMR[J]. SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY,1999,42(3):319-324. |
| APA | Yuan, HZ,Du, YR,Zhao, S,&Yu, JY.(1999).Self-aggregation of surfactants in water solution by NMR.SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY,42(3),319-324. |
| MLA | Yuan, HZ,et al."Self-aggregation of surfactants in water solution by NMR".SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY 42.3(1999):319-324. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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