摘要
采用微波辐射技术,以低聚壳聚糖磷钨酸盐为酯化反应催化剂合成了丙烯酸十四酯。通过正交试验考察了反应条件对酯化反应的影响,确定了反应的最佳工艺条件:微波输出功率260W,辐射时间15min,催化剂用量(以反应物质量计)1·0%,反应物十四醇与丙烯酸的摩尔比1∶1·3,在此条件下,酯化率可达96%以上。试验结果表明,低聚壳聚糖磷钨酸盐催化剂在丙烯酸十四酯的合成中显示出较好的催化性能,而且该法具有操作简便、反应速率快、节约能源等优点。
Tetradecyl acrylate was synthesized using low- molecular- weight chitosan phosphotungstate as catalyst by microwave irradiation. The effects of reaction conditions on esterification reaction were investigated utilizing orthogonal experimentation and the optimum reaction conditions were determined as follows： microwave power 260 W, irradiation time 15 min, amount of catalyst 1.0% （based on total quantity of reactants）, and molar ratio of tetradecyl alcohol to acrylic acid 1：1.3. The yield of tetradecyl acrylate was over 96 %. The experimental result showed that the low- molecular- weight chitosan phosphotungstate had good catalytic effect for preparation of tetradecyl acrylate. This method had advantages of easy operation, high reaction rate and low energy consumption.
出处
《精细石油化工进展》
CAS
2005年第10期23-25,28,共4页
Advances in Fine Petrochemicals
基金
江西省教育厅自然科学发展基金资助项目
