摘要
以油酸和季戊四醇(PE)为原料,对甲苯磺酸为催化剂,通过直接酯化的方法合成了季戊四醇油酸酯。反应的优化条件如下:对甲苯磺酸用量2%(油酸的质量分数),n(油酸)/n(PE)=4.1,反应温度160℃,反应时间1 h,甲苯为带水剂,优化条件下季戊四醇酯化率为98%。用柱层析法提纯产物,硅胶为吸附剂,石油醚为洗脱剂,收率75%。产物结构经IR光谱证实。
Pentaerythritol oleic acid ester was prepared through the esterification of oleic acid and pentaerythritol with p-toluene sulfonic acid as catalyst. The optimum reaction conditions found were as follows：n （oleicacid）/n （pentaerythritol） was 4.1, w（p-toluene sulfonic acid）= 2% （upon mass percent of oleic acid）, reaction temperature 160 ℃, reaction time 1h. In the optimum condition the conversion ratio of pentaerythritol was 98%. The product was purified by column chrom- atography with silica gel as sorbent and petroleum ether as eluent, the yield was 75% .The structure of pentaerythritol oleic acid ester was identified by IR spectrum.
出处
《湖南理工学院学报（自然科学版）》
CAS
2007年第1期77-79,共3页
Journal of Hunan Institute of Science and Technology(Natural Sciences)
基金
湖南省教育厅科研项目课题(编号05C589)
关键词
绿色润滑剂
季戊四醇油酸酯
合成
green lubricant
pentaerythritol oleic acid ester
synthesis
