微波辐照下松香酯化的研究  

Study on the Esterification of Rosin under Microwave Radiation

作　　者：胡志杰[1] 蔡智慧[1] 

机构地区：[1]南京林业大学化工学院,江苏南京210037

出　　处：《生物质化学工程》2006年第2期5-7,共3页Biomass Chemical Engineering

摘　　要：松香在微波下进行酯化,研究了醇的用量、微波功率大小、微波辐照时间等对反应的影响,确定以氧化锌为催化剂,在800 W功率微波辐照下反应80 m in,制备的松香十二醇酯酸值为8.1 mg/g,软化点为98.3℃;松香乙二醇酯酸值为11.2 mg/g,软化点为83.2℃。最佳反应比:松香与十二醇的摩尔比为1∶1.5,松香与乙二醇的摩比为1∶0.65。The effects of alcohol dosage, microwave power and reaction time on the esterification of rosin under microwave radiation using zinc oxide as a catalyst were studied. Dodecanol rosinate with acid value 8.1 mg/g, softening point 98.3℃ and ethylene glycol rosinate with acid value 11.2 mg/g, softening point 83.2℃ were prepared under 800W microwave radiation for 80 min with the molar ratio of rosin to dodecanol 1 ： 1.5 and the molar ratio of rosin to glycol 1 ： 0.65.

关 键 词：微波 松香 酯化 

分 类 号：TQ351.47[化学工程]