摘要
本文以棕榈酸为主要原料,经磺化、皂化、酯化合成了棕榈酸-2-羟基-3-磺酸钠丙酯,对最佳工艺条件进行了考察,确定了中间产物3-氯-2-羟基丙磺酸钠的最佳合成条件为:环氧氯丙烷与亚硫酸氢钠物质的量比为0.87∶1,反应温度85℃,反应时间3.5 h,产物的转化率为80.4%;棕榈酸钠的最佳合成条件为:棕榈酸与氢氧化钠物质的量比为1∶1,反应温度85℃,反应时间4.5 h,产物的转化率为83%;目的产物棕榈酸-2-羟基-3-磺酸钠丙酯的最佳合成条件为:3-氯-2-羟基丙磺酸钠与棕榈酸钠物质的量比为1.1∶1,反应温度65℃,反应时间6.5 h,产物的转化率为86.82%。经红外光谱分析,确定产物为目的产物,通过测定其溶液的表面张力、乳化性等,表明该产物具有优良的表面活性和较好的乳化性、起泡性等。
Palmitic acid-2-hydroxy-3-sulfonic acid sodium propyl ester was prepared with the palmitic acid as starting materials by means of sulphonation、Saponification and esterification.optimum reaction conditions of experiment was investigated.The optimum reaction conditions of 3-chloro-2-hydroxy sulfonate were n（propylene oxide）∶n（sodium bisulfite）=0.87∶1,reaction temperature 85 ℃.Reaction time 3.5 h.,Conversion ratio of the product was 80.4%.The optimum reaction conditions of sodium palmitate were n（palustric acid）∶n（sodium hydroxide）=1∶1,reaction temperature 85 ℃.Reaction time 4.5 h,conversion ratio of the product was 83%.Palmitic acid-2-hydroxy-3-sulfonic acid sodium propyl ester was obtained under optimum conditions of n（3-chloro-2-hydroxy sulfonate）∶ n（sodium palmitate）=1.1∶1,reaction temperature 65 ℃,reaction time 6.5 h,conversion ratio of the product was 86.82%.The structures of product were characterized by FTIR,and its surface properties were studied： such as surface tension,remissibility and so on.The surfactant product shows good surface activity as well as rather good emulsifying power,foaming properties and so on.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2013年第5期987-991,共5页
Bulletin of the Chinese Ceramic Society
关键词
棕榈酸
棕榈酸-2-羟基-3-磺酸钠丙酯
合成
性能
palmitic acid
Palmitic acid-2-hydroxy-3-sulfonic acid sodium propyl ester
synthesis
property
