聚羧酸类减水剂中间大分子单体的合成工艺  

Synthesis process of polycarboxylate water-reducer intermediate macromonomer

作　　者：张新民[1] 冯恩娟[1] 徐正华[2] 严生[1] 

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京210009 [2]南京化工大学化工建材设计研究所,江苏南京210009

出　　处：《化工进展》2008年第5期736-739,共4页Chemical Industry and Engineering Progress

摘　　要：通过丙烯酸和甲氧基聚乙二醇的酯化,生成了一种具有反应活性的聚羧酸类减水剂中间大分子单体——甲氧基聚乙二醇丙烯酸酯。探讨了各种实验条件对酯化反应的影响,得出了合成甲氧基聚乙二醇丙烯酸酯的最佳工艺条件。A kind of monomer with reaction activity, methoxypolyethylene glycol acrylate, which could be used as the intermediate macromonomer of polycarboxylate high performance water-reducer, was prepared by the esterification of acrylic acid and methoxypolyethylene glycol. The experimental conditions were investigated, and the optimum conditions for preparing methoxypolyethylene glycol acrylate were determined.

关 键 词：聚羧酸 酯化 大单体 

分 类 号：TQ172.45[化学工程—水泥工业]