【摘要】 松香(酸值170.54 mgKOH/g)与环氧氯丙烷反应,合成中间产物3-松香酰氧基-2-羟丙基氯,再与四甲基乙二胺反应,制备了松香基季铵盐双子表面活性剂(GSRP);用FT-IR对产物结构进行了鉴定,并对其性能进行分析。研究结果表明:中间产物3-松香酰氧基-2-羟丙基氯的酯化率为99.18%;GSRP的合成反应条件为:摩尔比2.2∶1(n中间产物:n-四甲基乙二胺),温度85℃,时间20 h,产物得率为76.70%,纯度为96.10%;GSRP的分水时间为16 m in;临界胶束浓度为1.42×10-4mol/L,表面张力为36.69 mN/m;发泡力为200 mm,泡沫稳定性好。更多还原

【Abstract】 Rosin-based quaternary ammonium gemini surfactant was successfully prepared from tetramethylethylenediamine reacted with 3-rosin acyloxy-2-hydroxypropul chlorine,which is intermediate product from rosin(with the acid value of 170.54 mgKOH/g)reacted with epoxy chloropropane.The reaction product and the intermediate were characterized by FT-IR in depth.Furthermore,the product surfactivity was analyzed.The results showed that:the esterification rate of the intermediate was 99.18%,the synthesis reaction condition of the titled compound was that,the mol ratio should be 2.2∶1(n intermediate:n-tetramethylethane-1,2-dia mine),the reaction temperature should be 85 ℃ and the reaction time should be 20 h,furnishing a yield of 76.70% with 96.10% purity.The result of the surface activity experiment showed that the emulsifying ability can be long to 16 min,the CMC can be low to 1.42×10-4 mol/L and the surface tension can reach to 36.69 mN/m.Foaming ability can reach to 200mm,the stabilization of the foam was good.更多还原