甲基丙烯酸β-羟乙酯的合成  

SYNTHESIS OF β-HYDROXYETHYL METHACRYLATE

作　　者：张吉林 

机构地区：[1]辽阳石油化工高等专科学校,111003

出　　处：《精细石油化工》1998年第6期30-32,共3页Speciality Petrochemicals

摘　　要：以十六烷基三甲基氢氧化铵为催化剂和对苯二酚为阻聚剂，由甲基丙烯酸甲酯和乙二醇合成了甲基丙烯酸β-羟乙酯。通过正交实验获得了最佳反应条件：反应温度100～110℃，反应时间2．5h，酯醇摩尔比1：1．5，催化剂的用量为9．0mL。HEMA的产率为92．3％。β- Hydroxyethyl methacrylate (HEMA ) was synthesized by methyl methacrylate (MMA) and ethylene glycol with cethyl trimethylammonium hydroxide as catalyst and 1,4 - dihydroxybenzene as polymerization inhibitor. After orthognal trial, the optimum reaction conditions were obtained: reaction temperature 100~ 110℃, reaction time 2. 5 h, mole ratio of MMA: glycol 1: 1. 5, amount of catalyst 9. 0 mL, the yield of HEMA 92. 3%.

关 键 词：HEMA 合成 阻聚剂 

分 类 号：TQ314.244[化学工程—高聚物工业]