| 季铵盐型Gemini表面活性剂气液界面行为研究 |
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| 引用本文： | 张达志,陈启斌,冷士良,王存英,乔卉莹. 季铵盐型Gemini表面活性剂气液界面行为研究[J]. 化学世界, 2011, 52(1): 1-4 |
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| 作者姓名： | 张达志 陈启斌 冷士良 王存英 乔卉莹 |
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| 作者单位： | 1. 徐州工业职业技术学院,化学工程系,江苏,徐州,221140
2. 华东理工大学,化学与分子工程学院,上海,200237 |
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| 摘 要： | 合成了不溶于水的季铵盐型Gemini表面活性剂18-s-18(=3,4,6,8,10,12),研究了联结基团长度对Gemini表面活性剂在气液界面上的性质的影响.结果表明:对不同长度的联结基团,表面压-分子面积曲线很相似;极限面积在s≤6时几乎成直线快速增加,并在s=10时达到最大值,s>10时稍微下降.
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| 关 键 词： | 联结基团 Gemini表面活性剂 πA曲线 |
Study on the Surface Properties of Gemini Surfactant at the Air/Water Interface |
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| ZHANG Da-zhi,CHEN Qi-bin,LENG Shi-liang,WANG Cun-ying,QIAO Hui-ying. Study on the Surface Properties of Gemini Surfactant at the Air/Water Interface[J]. Chemical World, 2011, 52(1): 1-4 |
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| Authors: | ZHANG Da-zhi CHEN Qi-bin LENG Shi-liang WANG Cun-ying QIAO Hui-ying |
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| Affiliation: | ZHANG Da-zhi(1),CHEN Qi-bin2,LENG Shi-liang1,WANG Cun-ying1,QIAO Hui-ying1(1.Department of Chemical Engineering,Xuzhou College of Industrial Technology,Jiangsu Xuzhou 221140,China,2.School of Chemistry and Molecular Engineering,East China University of Science and Technology,Shanghai 200237,China) |
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| Abstract: | The insoluble cationic bis-(quaternary ammonium halide) surfactants(Gemini),abbreviated as 18-s-18(s=3,4,6,8,10,12),were synthesized,and their surface properties at the air/water interface were investigated.For the Gemini surfactants with different spacer length,it was found that the surface pressure-molecular area isotherms resembled each other.The limiting area increased rapidly and almost linearly with the increase of spacer length for the short spacers,but reached a maximum as s=10 and ther decreased sl... |
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| Keywords: | spacer group Gemini surfactant π-A isotherm |
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