Cooperative Effects of Zwitterionic-Ionic Surfactant Mixtures on the Interfacial Water Structure Revealed by Sum Frequency Generation Vibrational Spectroscopy | |
Pan, XC (Pan, Xuecong); Yang, FY (Yang, Fangyuan); Chen, SL (Chen, Shunli); Zhu, XF (Zhu, Xuefeng); Wang, CY (Wang, Chuanyi); Zhu, XF | |
刊名 | LANGMUIR
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2018 | |
卷号 | 34期号:18页码:5273-5278 |
ISSN号 | 0743-7463 |
DOI | 10.1021/acs.langmuir.8b00178 |
英文摘要 | Cooperative effects of a series of equimolar binary zwitterionic-ionic surfactant mixtures on the interfacial water structure at the air-water interfaces have been studied by sum frequency generation vibrational spectroscopy (SFG-VS). For zwitterionic surfactant palmityl sulfobetaine (SNC16), anionic surfactant sodium hexadecyl sulfate (SHS), and cationic surfactant cetyltrimethylammonium bromide (CTAB) with the same length of alkyl chain, significantly enhanced ordering of interfacial water molecules was observed for the zwitterionic-anionic surfactant mixtures SNC16-SHS, indicating that SNC16 interacts more strongly with SHS than with CTAB because of the strong headgroup-headgroup electrostatic attraction for SNC16-SHS. Meanwhile, the SFG amplitude ratio of methyl and methylene symmetric stretching modes was used to verify the stronger interaction between SNC16 and SHS. The conformational order indicator increased from 0.64 for SNC16 to 7.17 for SNC16-SHS but only 0.94 for SNC16-CTAB. In addition, another anionic surfactant sodium dodecyl sulfate (SDS) was introduced to study the influence of chain-chain interaction. Decreased SFG amplitude of interfacial water molecules for SNC16-SDS was observed. Therefore, both the headgroup-headgroup electrostatic interaction and chain-chain van der Waals attractive interaction of the surfactants play an important role in enhancing the ordering of interfacial water molecules. The results provided experimental and theoretical bases for practical applications of the surfactants. |
WOS记录号 | WOS:000431926900013 |
内容类型 | 期刊论文 |
源URL | [http://ir.xjipc.cas.cn/handle/365002/5405] ![]() |
专题 | 新疆理化技术研究所_中国科学院特殊环境功能材料与器件重点试验室 |
通讯作者 | Zhu, XF |
作者单位 | 1.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Lab Environm Sci & Technol, Key Lab Funct Mat & Devices Special Environm, 40-1 South Beijing Rd, Urumqi 830011, Xinjiang, Peoples R China 2.Xinjiang Univ, Inst Sci & Technol, Lab Nanofiber Membrane Mat & Devices, 1 Xuefu Rd, Akesu 843100, Xinjiang, Peoples R China |
推荐引用方式 GB/T 7714 | Pan, XC ,Yang, FY ,Chen, SL ,et al. Cooperative Effects of Zwitterionic-Ionic Surfactant Mixtures on the Interfacial Water Structure Revealed by Sum Frequency Generation Vibrational Spectroscopy[J]. LANGMUIR,2018,34(18):5273-5278. |
APA | Pan, XC ,Yang, FY ,Chen, SL ,Zhu, XF ,Wang, CY ,&Zhu, XF.(2018).Cooperative Effects of Zwitterionic-Ionic Surfactant Mixtures on the Interfacial Water Structure Revealed by Sum Frequency Generation Vibrational Spectroscopy.LANGMUIR,34(18),5273-5278. |
MLA | Pan, XC ,et al."Cooperative Effects of Zwitterionic-Ionic Surfactant Mixtures on the Interfacial Water Structure Revealed by Sum Frequency Generation Vibrational Spectroscopy".LANGMUIR 34.18(2018):5273-5278. |
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