| 双子表面活性剂NNMB的合成及表征 |
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| 引用本文： | 苏克松,王东增,常启新,廖刚. 双子表面活性剂NNMB的合成及表征[J]. 精细石油化工进展, 2008, 9(4): 37-40 |
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| 作者姓名： | 苏克松 王东增 常启新 廖刚 |
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| 作者单位： | 西南石油大学化学化工学院,成都,610500;西南石油大学化学化工学院,成都,610500;西南石油大学化学化工学院,成都,610500;西南石油大学化学化工学院,成都,610500 |
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| 摘 要： | 选取丙酮为溶剂，以甲苯-2，4-二异氰酸酯（TDI），烷基溴和二乙基氨基乙醇为原料，合成了双子表面活性剂2，4-二（氨基甲酸-二乙基烷基季铵盐基乙基酯）-1-甲基苯（NNMB）。结果表明，通过加料次序和溶剂的改变，产物产率高达94％，产物易分离纯化。利用红外光谱验证了产物的结构。目标产物的水溶液在25℃的表面活性数据为：7cMc为27．3mN／m，CMC为0．7mmol／L，目标产物与十二烷基磺酸钠（SDS）复配产生了明显的协同效应，当目标产物与SDS摩尔比为1：2时，复合表面活性剂溶液的表面活性数据为：CMC为8．0×10^-2mmol／L，ycMc为22．5mN／m。
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| 关 键 词： | 双子表面活性剂 表面张力 结构 复配 |
Synthesis and Characterization of Gemini Surfactant NNMB |
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| Su Kesong,Wang Dongzeng,Chang Qixin,Liao Gang. Synthesis and Characterization of Gemini Surfactant NNMB[J]. Advances in Fine Petrochemicals, 2008, 9(4): 37-40 |
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| Authors: | Su Kesong Wang Dongzeng Chang Qixin Liao Gang |
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| Affiliation: | ( Chemistry and Chemical Engineering College, Southwest Petroleum University, Chengdu 610500) |
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| Abstract: | A gemini surfactant 2,4 - bis （amino formate - diethyl alkyl quaternary ammonium ethyl ester） - 1 - methyl benzene（NNMB） was synthesized with toluene -2,4- diisocyanate （TDI）, alkyl bromide and diethylamino ethanol as materials. The yield of the target product reached 94% by changing kinds of solvents and feeding order. The product was easily separated and purified. The structure of NNMB was characterized with infrared spectrum. The surface activity data of NNMB solution at 25 ℃ were yCMC = 27.3mN/m and CMC = 0.7 mmol/L. The surface activity data of composite NNMB/SDS （molar ratio 1：2） surfactant solution were CMC = 8.0 x 10＆-2 mmol/L and ycMc = 22.5 mN/m. |
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| Keywords: | gemini surfactant surface tension structure composite |
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