腰果酚缩水甘油醚侧链双键的环氧化研究

Study on the Epoxidation of Double Bond in Cardanol Glycidyl Ether Side Chain

以双氧水和冰乙酸为氧化剂,将腰果酚缩水甘油醚的侧链双键氧化成环氧基.以环氧值为主要指标,采用单因素试验探讨了各反应条件对多环氧基腰果酚缩水甘油醚(PEGCGE)环氧值的影响,确定了反应较适宜的工艺条件.采用正交法设计试验得到合成PEGCGE的适宜工艺条件为:n(CGE)∶n(冰乙酸)∶n(双氧水)=1∶1.5∶2.5(摩尔比),m(CGE)∶m(甲苯)∶m(固体酸)=1∶3∶0.5(质量比),最终得到PEGCGE的环氧值为0.601 mol/100 g,收率为89.2%.另外,采用FT-IR和1H-NMR对其结构进行了表征.

Hydrogen peroxide and glacial acetic acid as oxidant, the double-bonds of side chain in cardanol glycidyl ether are oxidized into epoxy group, using the single factor experiment, we choose epoxy value as the main index to discuss the influence of various reaction conditions to the epoxy value of poly-epoxy group car- danol glycidyl ether （PEGCGE） , and the more suitable process conditions are determined. Through orthogo- nal experiment, the suitable process conditions of synthesis PEGCGE are obtained： The mole ratio is： n （CGE） ： n （ glacial acetic acid） ： n （ hydrogen peroxide） = 1 ： 1.5 ： 2.5 ; The mass ratio is ： m （ CGE ） ： m （ tolu- ene） ： m（solid acid） = 1： 3： 0.5. Finally, the epoxy value of PEGCGE is 0. 601 mol/100 g and the yield is 89.2% , its structure is characterized by FT-IR and ^1H-NMR.