响应面法优化咪唑啉硫酸酯盐的合成及性能研究

doi:10.13218/j.cnki.csdc.2016.06.003

摘要/Abstract

摘要： 以氨基磺酸为硫酸化试剂,月桂酸和羟乙基乙二胺为原料,尿素为催化剂,合成了咪唑啉硫酸酯盐。利用IR和¹H NMR对合成产物的结构进行了表征。在单因素试验的基础上,利用响应面法优化硫酸酯盐的合成工艺条件,确定较佳工艺条件为:反应温度107 ℃、反应时间3.7 h、n(咪唑啉)∶n(氨基磺酸)=1∶1.09、催化剂用量为反应物总质量的2.93%,在此条件下咪唑啉硫酸酯盐的产率为75.20%。同时测定了咪唑啉硫酸酯盐的表面活性及泡沫性能,测试结果表明,合成的咪唑啉硫酸酯盐具有良好的表面活性和泡沫性能。

关键词: 咪唑啉硫酸酯盐, 表面活性, 响应面法

Abstract: Under the catalysis of urea,a kind of imidazoline sulfate salt was synthesized with amino sulfonic acid as the sulfating reagent,lauric acid and N-hydroxyethyl-ethylenediamine as starting materials.The chemical structure of the target product was characterized by IR and ¹H NMR.Based upon results obtained from single factor experiments and in combination with response surface method,the optimal synthesis conditions were determined as:n(imidazoline)∶n(amino sulfonic acid)=1∶1.09;reaction temperature,107 ℃;reaction time,3.7 h;dosage of the catalyst,2.93% of the total mass of the reactants.Under the above-mentioned conditions,the reaction yield achieves 75.20%.Surface activity and foaming performance of the product were measured.The results showed that imidazoline sulfate salt displays good surface activity and foaming performance.

Key words: imidazoline sulfate salt, surface activity, response surface method

中图分类号:

TQ423.3

郭睿,程敏,杨江月,李欢乐,刘爱玉. 响应面法优化咪唑啉硫酸酯盐的合成及性能研究[J]. 日用化学工业, 2016, 46(6): 314-319.

GUO Rui,CHENG Min,YANG Jiang-yue,LI Huan-le,LIU Ai-yu. Optimization of synthesis of imidazoline sulfate salt by response surface method and study of its performance[J]. China Surfactant Detergent & Cosmetics, 2016, 46(6): 314-319.

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