Controlling the Morphology of Membranes by Excess Surface Charge in Cat-Anionic Fluorinated Surfactant Mixtures
文献类型：期刊论文
| 作者 | Ou-Yang, ZC
|
| 刊名 | LANGMUIR
 |
| 出版日期 | 2014 |
| 卷号 | 30期号:10页码:2632-2638 |
| 关键词 | PHASE-BEHAVIOR FLUOROCARBON SURFACTANTS CATIONIC SURFACTANTS SYSTEMS HYDROCARBON AGGREGATION AMPHIPHILES MONOLAYERS NANODISCS MOLECULES |
| ISSN号 | 0743-7463 |
| 通讯作者 | Hao, JC (reprint author), Shandong Univ, Key Lab Colloid & Interface Chem, Minist Jinan, Jinan 250100, Peoples R China. |
| 英文摘要 | The segregation and phase sequence of semifluorinated cat-anionic surfactant membranes at different excess surface charges was investigated by freeze-fracture transmission electron microscope (FF-TEM), X-ray diffraction (XRD), and nuclear magnetic resonance (NMR). The thermal behavior of the membranes was evaluated by conductivity, rheology, and deuterium nuclear magnetic resonance (H-2 NMR). The experimental results show that the cat-anionic fluorinated surfactant mixtures can form faceted vesicles and punctured lamellar phase when there is excess surface charge. The cationic and anionic fluorinated surfactants are stiff in the membranes, like phospholipids in the frozen "crystalline" or "gel" phase. For the system with excess, cationic surface charge, the gel-like faceted vesicles and punctured lamellae can transform into smooth-shaped vesicles at 65 C. However, for the system with no excess charge or with excess anionic surface charge, no phase transformation occurs even at 90 C. A model was established to demonstrate the mechanism of the formation and transition of the aggregates with different morphologies. The segregation-crystallization mechanism works well with other cosmotropic counterions from the Hofmeister series. The observations provide a better understanding of how to control the membrane morphology of the aqueous solutions of cat-anionic surfactant mixtures. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [31101600]; Shandong Technology Development Program [2011GNC11208]; Special Fund for Taishan Scholar Construction Engineering (Agricultural Nonpoint Source Pollution Prevention and Control) |
| 原文出处 | http://dx.doi.org/10.1021/la403279c |
| 语种 | 英语 |
| WOS记录号 | WOS:000333235500006 |
| 公开日期 | 2015-06-03 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15806]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Ou-Yang, ZC. Controlling the Morphology of Membranes by Excess Surface Charge in Cat-Anionic Fluorinated Surfactant Mixtures[J]. LANGMUIR,2014,30(10):2632-2638. |
| APA | Ou-Yang, ZC.(2014).Controlling the Morphology of Membranes by Excess Surface Charge in Cat-Anionic Fluorinated Surfactant Mixtures.LANGMUIR,30(10),2632-2638. |
| MLA | Ou-Yang, ZC."Controlling the Morphology of Membranes by Excess Surface Charge in Cat-Anionic Fluorinated Surfactant Mixtures".LANGMUIR 30.10(2014):2632-2638. |
入库方式： OAI收割
来源：理论物理研究所
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