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论文类型：期刊论文

发表时间：2019-06-25

发表刊物：MACROMOLECULES

收录刊物：SCIE、EI

卷号：52

期号：12

页面范围：4520-4525

ISSN号：0024-9297

摘要：A near 100% initiation efficiency and 100% regioselectivity at the methylacrylic C=C bond was realized by bulky Lewis pairs-mediated polymerization of polar divinyl monomers such as 4-vinylbenzyl methacrylate at mild conditions, affording soluble polymers bearing pendant active vinyl groups with narrow dispersities. A delicate combination of Lewis acid and base with suitable steric hindrance is necessary for achieving high initiation efficiency and activity. The livingness and robustness of the bulky Lewis pair polymerization systems provide a simple and convenient route to produce various di- or tri-block copolymers by the stepwise addition of the different monomers, as well as the copolymer in random distribution by the use of the mixed monomers.