三羟乙基烯丙基季铵盐的合成与表征

Synthesis and Characterization of Triethyl Allyl Quaternary Ammonium Salts

以水为溶剂,以三乙醇胺和烯丙基氯为原料,控制反应温度、时间、摩尔比等条件,反应生成新型阳离子单体三羟乙基烯丙基型季铵盐。采用红外光谱表征了合成产物的结构,用硝酸银滴定法计算产率,并确定了最佳合成工艺条件:反应温度为40℃,反应时间24h,通过控制单体氯丙烯的挥发,使单体摩尔比为n(三乙醇胺)∶n(氯丙烯)=1∶1.1,目标产物的产率可达79.8%以上。

A new cationic monomer trihydroxyethyl allyl quaternary ammonium salt was synthesized from triethanolamine and allyl chloride in water by controlling reaction temperature,reaction time and material molar ratio.The optimum synthesized conditions were:the reaction temperature was40℃and the reaction time was24h.By controlled the volatilization of allyl chloride monomer,the molar ratio of the monomer was n(triethanolamine):n(allyl chloride)=1:1.1,and the yield of the target product was over79.8%.