丙烯酸聚乙二醇单酯的合成研究  

Study on Synthesis of Acrylate Polyethylene Glycol Monoester

作　　者：李先红[1] 李淑琴[1] 

机构地区：[1]襄樊学院化学与生物科学系,湖北襄樊441053

出　　处：《辽宁化工》2007年第8期521-523,共3页Liaoning Chemical Industry

摘　　要：以聚乙二醇-200与丙烯酸直接缩合反应,在不加有毒带水剂的条件下合成了丙烯酸聚乙二醇单酯。探讨影响缩合反应酯化率的因素,确定酯化反应的最佳条件：丙烯酸与PEG200的摩尔比为1.2∶1.0,反应温度是110-140℃,阻聚剂对苯二酚为0.6%（以醇酸总质量计）,反应时间为6 h,催化剂对甲苯磺酸为1.0%（以醇酸总质量计）,产率达89.4%。Acrylate polyethylene glycol monoester was synthesized by condensation of PEG （200） and acrylic acid without water - carrying reaction. The optimal condition of esterication was studied that the molar rate of acrylic acid to PEG was 1.2： 1.0,the reaction temperature was 110 - 140 ℃, the reaction time was 6 h, the amount of hydroquinone and p - methy benzene sulfonic acid was 0.6 % and 1.0 %, respectively（according to the mass of PEG and acrylic acid）. The ester yield reached 89.4 %.

关 键 词：丙烯酸聚乙二醇单酯 合成 聚乙二醇 丙烯酸 

分 类 号：TQ325[化学工程—合成树脂塑料工业]