摘要
以沙枣糖和脂肪醇为原料,采用正交试验L16(45)进行烷基糖苷的合成,找出了合成烷基糖苷较佳的工艺条件:反应温度115～120 ℃,常压反应,反应时间5～7 h,m沙枣糖:m乙二醇:m正十二醇=1:2:1.2,选用0.8%的对甲苯磺酸和0.2%的十二烷基苯磺酸的混合酸为催化剂.沙枣糖转化率达87.5%,产物表面张力为29.1～33.7 mN/m.通过红外光谱对产物的结构进行了分析.
Taking the oleaster sugar, ethandiol, ano 1-dodecanol as raw material, the alkyl polyglycosides was synthesized by means of orthogonal experiment L16 （4^5）, and a better processing condition of synthesis of alkyl polyglycosides found：reaction temperature is 115-120 ℃,reaction time of 5-7 h,mass ratio of oleaster sugar to ethandiol and dodecanol of 1 ： 2 ： 1.2,and the catalyst is mixed acid from 0. 8% p-toluenesulfonic acid and 0.2% dodecyl benzenesulfonic acid. The conversion rate of oleaster amounts to 87. 5% and surface tension is 29. 1-33. 7 mN/m,The structure of resultant was analyzed with spectrography.
出处
《兰州理工大学学报》
CAS
北大核心
2005年第6期70-73,共4页
Journal of Lanzhou University of Technology
关键词
沙枣糖
烷基多糖苷
正交试验
合成
oleaster sugar
alkyl polyglycosides
orthogonal experiment
synthesis
