Insights into the Optimization of Alkyl Phenol/Alkyl Halide Ratio in Gemini Surfactant Synthesis
作者:LiJuan Guo、YongJun Guo、RuSen Feng、JianXin Liu
DOI:10.1007/s11743-015-1723-5
日期:2015.11
indicated that the molar ratio is a key factor to minimize impurities in the target material, due to the high reactivity of alkyl halide. In addition, the results showed that alkyl halide with a shorter spacer group length required a higher molar ratio of alkyl halide to alkylphenol. To synthesize the intermediate Gemini product with 80 % diether content, the molar ratios were optimized using n(alkylphenol):n(1
1个应用1 H NMR和薄层色谱(TLC)分析了两个合成的具有不同间隔长度(2、4和6个碳)和疏水链长度(9、12个碳)的磺化双子表面活性剂的成分。通过使烷基苯酚与烷基卤化物反应,然后与氯磺酸磺化来制备Gemini表面活性剂。研究了烷基酚与卤代烷的摩尔比对单醚对二醚比的影响,结果表明,由于卤代烷的高反应性,该摩尔比是使目标材料中杂质减至最少的关键因素。另外,结果表明,具有较短间隔基团长度的卤代烷需要较高的卤代烷与烷基酚的摩尔比。要合成二甲醚含量为80%的中间体Gemini产品,