Free radical and nitroxide mediated polymerization of hydroxy-functional acrylates prepared via lipase-catalyzed transacylation reactions
作者:Dragos Popescu、Richard Hoogenboom、Helmut Keul、Martin Möller
DOI:10.1002/pola.24041
日期:2010.6.15
3‐Hydroxypropyl acrylate, 4‐hydroxybutyl acrylate, 2‐methyl‐3‐hydroxypropyl acrylate, 2‐hydroxypropyl acrylate, neopentyl glycol acrylate, glyceryl acrylate, and dihydroxyhexyl acrylate were prepared via transacylation reaction of methyl acrylate with diols and triols catalyzed by Candida antarctica lipase B. After removal of the enzyme by filtration and the methyl acrylate by distillation, the monomers
丙烯酸3-羟基丙酯,丙烯酸4-羟基丁酯,丙烯酸2-甲基-3-羟基丙酯,丙烯酸2-羟基丙基,丙烯酸新戊二醇酯,丙烯酸甘油酯和丙烯酸二羟基己酯是通过南极假丝酵母催化的丙烯酸甲酯与二醇和三醇的酰基转移反应制得的在通过过滤除去酶并通过蒸馏除去丙烯酸甲酯之后,将单体通过自由基聚合(FRP)与偶氮二异丁腈作为引发剂进行聚合,并使用Blocbuilder™烷氧基胺引发剂和SG-1游离硝基氧化物进行氮氧化物介导聚合(NMP)。产生羟基官能的聚(丙烯酸酯)。NMP动力学进行了详细讨论。另外,比较了通过FRP和NMP获得的聚合物,并且结果与由酰基转移反应产生的初始单体混合物中存在的双丙烯酸酯的量有关。©2010 Wiley Periodicals,Inc. J Polym Sci A部分:Polym Chem 48:2610–2621,2010