作　　者： ; ; ; ; ; (罗方然）; (周虹谷）;

机构地区： 广州大学

出　　处： 《材料研究与应用》 2013年第4期246-251,共6页

摘　　要： 以溴代十四烷和N-甲基二乙醇胺(MDEA)为原料,采用无溶剂法合成了十四烷基甲基二羟乙基溴化铵(TMDAB).通过红外光谱、1 H NMR及MS质谱分析对合成产物的结构及分子量进行了分析.通过单因素试验获得最优合成条件:反应温度110℃,反应物摩尔比n(溴代十四烷)∶n(MDEA)=1.1∶1.0,反应时间110min.在40倍放大实验中,MDEA转化率达90%以上.合成的TMDAB的表面张力为24.8mN/m,具有良好的增溶性能、泡沫性能和乳化性能. Using bromotetradecane and N-methyl-diethanolamine （MDEA） as raw materials, Tetradecyl dimethyl hydroxyethyl ammonium bromide （TMDAB） was synthesized by solvent-free synthesis. The structure and molecular weigh of the product were characterized by IR, 1H NMR and MS. Through single factor test the optimal reaction conditions were as following： temperature was 110 ℃, n （bromotetradecane） ： n （MDEA）=1. 1 ： 1.0, reaction time was 110 min. The conversion rate was up to 90% under the amplification experiments of 40 magnification. The results showed that the surface tension was 24. 8mN · m^-1 , the product had good performance solubility properties foaming and emulsification.

关 键 词： 季铵盐 放大实验 无溶剂法 合成

领　　域： [化学工程]