| Dynamic Study of Gemini Surfactant and Single-chain Surfactant at Air／Water Interface |
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| 作者姓名： | YiJianCHEN GuiYingXU ShiLingYUAN HaiYingSUN |
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| 作者单位： | [1]KeyLabforColloidandInterfaceChemistryofEducationMinistry,ShandongUniversity,Jinan250100 [2]KeyLabforColloidandInterfaceChemistryofEducationMinistry,ShandongUniversity,Jinan250100／／InstituteofTheoreticalChemistry,ShandongUniversity,Jinan250100 [3]KeyLabforColloidandInterfaceChemistryofEducationMinistry,ShandongUniversity,Jinan250100／／DepartmentofChemicalEngineering,ShandongInstituteofLightIndustry,Jinan250100 |
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| 摘 要： | Molecular dynamics (MD) simulation are used to study the properties of gemini surfactant of ethyl-α,ω-bis(dodecyldimethylammonium bromide) (C12C2C12) and dodecyl-trimethylammonium bromide (DTAB) at the air/water interface, respectively. In the two systems,t he surfactant concentrations are both 28 wt.%, and other conditions are also the same. After reaching the thermodynamic equilibrium, the concentration profiles, the radial distributions functions (RDF) and the mean squared displacement (MSD) are investigated. The results reveal that the surface activity of C12C2C12 surfactant is higher than DTAB surfactant.
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| 关 键 词： | 动力学 表面活性剂 空气／水分界面 水分子 密度 |
Dynamic Study of Gemini Surfactant and Single-chain Surfactant at Air/Water Interface |
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| YiJianCHEN GuiYingXU ShiLingYUAN HaiYingSUN.Dynamic Study of Gemini Surfactant and Single-chain Surfactant at Air/Water Interface[J].Chinese Chemical Letters,2005,16(5):688-690. |
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| Authors: | Yi Jian CHEN Gui Ying XU Shi Ling YUAN Hai Ying SUN Key Lab for Colloid and Interface Chemistry of Education Ministry Shandong University Jinan Institute of Theoretical Chemistry Shandong University Jinan |
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| Institution: | Yi Jian CHEN1,Gui Ying XU1,Shi Ling YUAN1,2,Hai Ying SUN1,3 1 Key Lab for Colloid and Interface Chemistry of Education Ministry,Shandong University,Jinan 250100 2 Institute of Theoretical Chemistry,Shandong University,Jinan 250100 3 Department of Chemical Engineering,Shandong Institute of Light Industry,Jinan 250100 |
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| Abstract: | |
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| Keywords: | Molecular dynamics simulation gemini surfactant air/water interface |
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