摘要
以聚乙二醇单甲醚和丙烯酸为原料,对甲苯磺酸为催化剂,对苯二酚为阻聚剂,制备了聚乙二醇单甲醚丙烯酸酯,并通过红外、核磁对其结构进行表征和分析.经正交试验得最佳合成条件为:酸醇比为2.5,反应时间为7 h,反应温度为130℃,催化剂用量为反应物总质量的1.5%,阻聚剂用量为反应物总质量的0.5%,酯化率可达85.76%.
Polycarboxylate macromonomer polyethylene glycol monomerthy ether acrylate was synthesized with acrylic acid and polyethylene glycol,the inhibitor is hydroquinone,catalyst is p-toluenesulfonic acid,synthesized polycarboxylate macromonomer polyethylene glycol monomethyl ether acrylate.The product′s structure was characterized and analyzed by IR、NMR.The optimum conditions of synthesizing the monomer by orthogonal experiment were obtained as follows：the n（acid）/n（nalcohol） is 2.5,the reaction time is 7 h,the reaction temperature is 130 ℃,catalyst is 1.5% of the total mass of material1 and inhibitor the total mass of reactants 0.5%.The conversion of product reaches 85.76% under the optimum experiment condition.
出处
《陕西科技大学学报（自然科学版）》
2010年第6期31-34,共4页
Journal of Shaanxi University of Science & Technology
关键词
聚乙二醇单甲醚丙烯酸酯
酯化
合成条件
polyethylene glycol
monomethyl
ether acrylate esterification
synthesis conditions
