离子液体催化合成乙二醇双丙烯酸酯  

Synthesis of glycol diacrylate using acidic ionic liquid as the catalyst

作　　者：陈晓刚[1,2] 方岩雄[2] 

机构地区：[1]佛山科学技术学院理学院,广东佛山528000 [2]广东工业大学轻工化工学院,广东广州510006

出　　处：《工业催化》2009年第6期53-56,共4页Industrial Catalysis

基　　金：国家自然科学基金(20376015)

摘　　要：使用酸性离子液体[Hnmp]HSO_4作为合成乙二醇双丙烯酸酯的催化剂,考察了原料配比、反应温度、反应时间、催化剂用量和带水剂用量对反应的影响,结果表明,当n(乙二醇):n(丙烯酸)=1.0:2.2、反应温度为(120～125)℃、反应时间60 min、催化剂用量为酸醇总物质的量的2.00%和带水剂甲苯用量20 mL的条件下,酯化率达90.9%。A Brφnsted acid ionic liquid [ Hnmp ] HSO_4 was used as the catalyst for esterification of acrylic acid with glycol.The influence of feed proportion,reaction temperature,reaction time,catalyst dosage and amount of water-carrying agent was investigated.Glycol diacrylate yield of 90.9% was obtained under the optimial condition as follows:n(ethyleneglycol):n(acrylic acid) = 1.0:2.2,reaction time 60 min, reaction temperature (120-125) ℃,catalyst dosage = 2.00% of the total material (mol),the water carrying agent toluene dosage 20 mL.

关 键 词：催化化学 酸性离子液体 酯化反应 乙二醇双丙烯酸酯 

分 类 号：O643.36[理学—物理化学] O623.624[理学—化学]