【作者】 蔡波； 程立； 董金凤； 李学丰；

【Author】 Bo Cai,Li Cheng,Jinfeng Dong,Xuefeng Li~* College of Chemistry and Molecular Science,Wuhan University,430072,Wuhan

【机构】 武汉大学化学与分子科学学院；

【摘要】 短链的单链吡咯烷型季铵盐是一类典型的离子液体而长链的单链吡咯烷型季铵盐则呈现阳离子表面活性剂的典型特征。我们以吡咯烷作为亲水头基合成了一类长链的Gemini型阳离子表面活性剂(Di-CnPB,Fig 1a),利用表面张力(Fig 1b)、电导、荧光和动态光散射等多种技术手段对其溶液及表面吸附行为进行了研究,结果表明疏水尾链的长度对Di-CnPB同系物的溶液自组装与表面性质有重要的影响。更多还原

【Abstract】 Alkylated pyrrolidiniums with short hydrophobic tail are a typical ionic liquid,whereas they were proved to be cationic surfactants with longer tails.A homogenous of Gemini surfactants Di-CnPB containing pyrrolidinium headgroups were synthesized,and were studied by employing the surface tension,conductivity, fluorescence and dynamic light scattering.The results indicated that surface activity was higher than that of the common cationic Gemini Cn-s-Cn type surfactants.The effect of the hydrophobic chain length on the surface activity was in line with that of classic hydrocarbon surfactants.更多还原