作者:Jos M. J. Paulusse、Roey J. Amir、Richard A. Evans、Craig J. Hawker
DOI:10.1021/ja903245p
日期:2009.7.22
of cleavable functional groups, i.e., esters, thioesters, and disulfides, into the carbon-carbon backbone of vinyl-based polymers. Through the synthesis of novel cyclic monomers, RAFT-mediated radical ring-opening copolymerizations with traditional vinyl monomers such as methyl methacrylate, N,N-dimethylaminoethyl methacrylate, and 2-hydroxyethyl methacrylate lead to the introduction of controlled
已经开发出一种通用的合成策略,可以轻松地将可裂解的官能团(即酯、硫酯和二硫化物)结合到乙烯基聚合物的碳-碳主链中。通过合成新型环状单体,RAFT 介导的自由基开环与传统乙烯基单体(如甲基丙烯酸甲酯、N,N-二甲氨基乙酯和甲基丙烯酸 2-羟乙酯等)进行的自由基开环共聚导致在这些广泛使用的乙烯基共聚物中引入可控降解性系统。这种策略的另一个好处是通过引入含有不同官能团的环状单体(如酯、硫酯、二硫化物和甲硅烷基醚单元),可以在碱性/酸性、还原性或酶促条件下降解,从而获得固有的多功能性。