摘要
在三氟化硼乙醚溶液催化下,正辛醛与环氧溴丙烷首先反应生成2-庚基-4-溴甲基-1,3-二氧杂环戊烷,然后再与吡啶反应,研究合成了一种新型的含吡啶环的单阳离子表面活性剂(2-庚基-1,3-二氧杂环-4)甲烷-1-吡啶盐。产物结构经红外光谱和1HNMR分析表征并测定其电导率,该表面活性剂的临界胶束浓度为4.0×10^(-3) mol/L,表面活性强于传统表面活性剂。
Catalyzed by the ether solution of boron trifluoride, n-octyl aldehyde reacted with epibromohydrin to produce 2-heptyl-4- bromomethyl-1,3-dioxolane. Then it was reacted with pyridine, thus a new type of single cationic surfactant containing pyridine ring, （2-heptyl-1,3-dioxane-4）-1-methane pyridine salt, was synthesized. The structure of resulting product was characterized by IR and IHNMR. By the measurement of conductivity, the critical micelle concentration of this surfactant was 4.0×10^3 mol/L, which showed that its surface activity was stronger than that of traditional surfactants.
出处
《日用化学品科学》
CAS
2016年第6期34-37,共4页
Detergent & Cosmetics
