Two cloud-point phenomena in tetrabutylammonium perfluorooctanoate aqueous solutions: Anomalous temperature-induced phase and structure transitions
文献类型：期刊论文
| 作者 | Yan, P; Huang, J; Lu, RC; Jin, C; Xiao, JX; Chen, YM |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY B
 |
| 出版日期 | 2005-03-24 |
| 卷号 | 109期号:11页码:5237-5242 |
| ISSN号 | 1520-6106 |
| DOI | 10.1021/jp045283m |
| 英文摘要 | This paper reported the phase behavior and aggregate structure of tetrabutylammonium perfluorooctanoate (TBPFO), determined by differential scanning calorimeter, electrical conductivity, static/dynamic light scattering, and theology methods. We found that above a certain concentration the TBPFO solution showed anomalous temperature-dependent phase behavior and structure transitions. Such an ionic surfactant solution exhibits two cloud points. When the temperature was increased, the solution turned from a homogeneous-phase to a liquid-liquid two-phase system, then to another homogeneous-phase, and finally to another liquid-liquid two-phase system. In the first homogeneous-phase region, the aggregates of TBPFO were rodlike micelles and the solution was Newtonian fluid. While in the second homogeneous-phase region, the aggregates of TBPFO were large wormlike micelles, and the solution behaved as pseudoplastic fluid that also exhibited viscoelastic behavior. We thought that the first cloud point might be caused by the "bridge" effect of the tetrabutylammoniurn counterion between the micelles and the second one by the formation of the micellar network. |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000227734500059 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/56489]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Xiao, JX |
| 作者单位 | 1.Peking Univ, Inst Phys Chem, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, P,Huang, J,Lu, RC,et al. Two cloud-point phenomena in tetrabutylammonium perfluorooctanoate aqueous solutions: Anomalous temperature-induced phase and structure transitions[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2005,109(11):5237-5242. |
| APA | Yan, P,Huang, J,Lu, RC,Jin, C,Xiao, JX,&Chen, YM.(2005).Two cloud-point phenomena in tetrabutylammonium perfluorooctanoate aqueous solutions: Anomalous temperature-induced phase and structure transitions.JOURNAL OF PHYSICAL CHEMISTRY B,109(11),5237-5242. |
| MLA | Yan, P,et al."Two cloud-point phenomena in tetrabutylammonium perfluorooctanoate aqueous solutions: Anomalous temperature-induced phase and structure transitions".JOURNAL OF PHYSICAL CHEMISTRY B 109.11(2005):5237-5242. |
入库方式： OAI收割
来源：化学研究所
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