β-丙烯酰氧基丙酸甲氧基乙酯的合成  

Synthesis of methoxy ethyl β-acryloxypropionate

作　　者：白宇辰[1] 赵彬[1] 姜朝东[1] 童云鹏[1] 李效玉[1] 

机构地区：[1]北京化工大学可控化学反应科学与技术基础教育部重点实验室,北京100029

出　　处：《北京化工大学学报（自然科学版）》2002年第1期33-35,共3页Journal of Beijing University of Chemical Technology(Natural Science Edition)

摘　　要：以丙烯酸为原料 ,通过亲核加成反应合成了 β 丙烯酰氧基丙酸 ,然后再与乙二醇单甲醚反应 ,得到 β 丙烯酰氧基丙酸甲氧基乙酯。讨论了不同影响因素如阻聚剂、脱水剂和反应时间对合成反应以及转化率的影响 ;分别用红外光谱法、气相色谱 质谱联用法表征了产物 ,同时用液相色谱分析了产物的含量 ;采用乳液聚合法合成了该单体的聚合物 ,并用DSC测定了聚合物的玻璃化转变温度。结果表明 ,选择阻聚剂对苯二酚、脱水剂苯有利于合成反应 ,体系转化率高 ;所合成单体均聚物的玻璃化转变温度为 - 5acryloxypropionic acid was obtained through the nuclephilic addition reaction of acrylic acid's carboxy. Reacted with ethylene glycol monomethyl ether, methoxy ethyl β acryloxypropionate was acquired. The effects of inhibitor, dehydrant and reaction time on conversion were studied. The objective monomer's structure was characterized by IR and GC MS and its content was analyzed by liquid chromatography. The polymer of this monomer was obtained by emulsion polymerization. DSC indicated that the polymer's T g was -54 ℃. The results show that hydroquinone and benzen are preferable for this system.

关 键 词：丙烯酸 β-丙烯酸氧基丙酸甲氧基乙酯 合成 乳液聚合 丙烯酸酯橡胶 单体 

分 类 号：TQ333.97[化学工程—橡胶工业] O623.624[理学—有机化学]