摘要
通过椰油胺分步乙氧基化、复合极性介质(水+甲醇)中氯甲烷季铵化的两步联合工艺制备出转化率高(≥95%),胺值低(≤5)的新型阳离子表面活性剂椰油胺聚氧乙烯醚(10)氯化铵。应用FTIR和NMR对目标产物结构进行确认,并对椰油胺聚氧乙烯醚(10)氯化铵的表面活性进行了研究。结果表明,25℃临界胶束浓度达13.2×10^(-4)mol/L(γ_(cmc)=40 m N/m),HLB值达18.2,产品兼具低CMC值和高HLB值,有更好的水溶性和增溶性。
Polyoxyethylene(10)cocoamine ammonium chloride,a new cationic surfactant with high conversion(≥95%)and low amine value(≤5)was successfully prepared through a two-step ethoxylation of cocoamine and quaternization of methyl chloride in solution of water and methanol.The structure of the target product was confirmed by FTIR and NMR,and the surface activity of polyoxyethylene(10)cocoamine ammonium chloride was studied.The results showed that the critical micelle concentration at 25℃ was 13.2×10^(-4)mol/L(γ_(cmc)=40 mN/m),HLB value reached 18.2.This product has both low CMC value and high HLB value,indicating better water solubility and solubilization.
作者
周扬
金一丰
寇然
张雨
许林钧
ZHOU Yang;JING Yi-fen;KOU Yuan;ZHANG Yu;XU Lin-jun(Zhejiang Lvkean Chemical Ltd.,Co.,Shangwu 312369,China;Zhejiang Huangma Technology Ltd.,Co.,Shangwu 312369,China)
出处
《精细化工中间体》
CAS
2021年第6期46-51,共6页
Fine Chemical Intermediates
