摘要
以环氧氯丙烷(ECH)和三甲胺(TMA)为原料,在40 kHz超声辅助下合成了季铵盐型活性醚化剂环氧氯丙基三甲基氯化铵(GTA);GTA在超声辅助下与硬脂酸反应,合成了阳离子单酯表面活性剂N,N,N-三甲基-2-羟基-3-硬脂酰氧基丙基氯化铵(CMESA)。通过元素分析,IR等手段对CMESA进行了表征,并考察了反应温度,n(GTA)∶n(硬脂酸),pH和反应时间等因素对产率的影响。结果表明,CMESA的合适合成条件为:超声频率50 kHz,n(GTA)∶n(硬脂酸)=3∶1,反应温度70℃,反应时间4 h,此条件下CMESA的产率为94.90%。
Quaternary salt type active etherification agent epoxychloropropyltrimethylammonium chloride (GTA) was synthesized by epichlorohydrin (ECH) and trimethylamine (TMA) under help of 40 kHz ultrasonic wave. A cationic monoester surfactant N, N, N - trimethyl -2 - hydroxy - 3 - stearoyloxy - propylammonium chloride ( CMESA ) was synthesized by reaction of GTA and stearic acid under help of ultrasonic wave. The product was characterized by elemental analysis, IR, et al. Effects of reaction temperature, mole ratio n (GTA) : n ( stearic acid), pH and reaction time on yield of product were studied. The results showed that the suitable conditions for synthesis of CMESA were : ultrasound frequency 50 kHz, n (GTA) : n(stearic acid) =3:1 ,reaction temperature 70 ℃ ,reaction time 4 h. Under these 6onditions,yield of CMESA achieves 94. 90%.
出处
《日用化学工业》
CAS
CSCD
北大核心
2012年第1期24-26,38,共4页
China Surfactant Detergent & Cosmetics
基金
国家自然科学基金资助项目(21102121)
陕西省教育厅专项科研基金资助项目(11JK0584)
咸阳师范学院专项科研基金资助项目(10XSYK201)
关键词
阳离子表面活性剂
环氧氯丙基三甲基氯化铵
合成
表征
cationic surfactant
epoxychloropropyltrimethylammonium chloride
synthesis
characterization