Direct Radical Polymerization of Vinyl Ethers: Reversible Addition–Fragmentation Chain Transfer Polymerization of Hydroxy-Functional Vinyl Ethers
作者： Shinji Sugihara , Yuki Kawamoto , Yasushi Maeda
DOI: 10.1021/ACS.MACROMOL.6B00145
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摘要: Unprecedented controlled radical vinyl polymerization (CRP) of ethers using reversible addition–fragmentation chain transfer (RAFT) is reported. In order to overcome the challenge direct ethers, commercial hydroxy-functional such as 2-hydroxyethyl ether (HEVE) were subjected free polymerization, generating polymers without polyacetals obtained by self-polyaddition polymerization. case bulk a nonacidic azo-initiator dimethyl 2,2′-azobis(2-methylpropionate), conventional occurred with sufficiently high number-average molecular weight. For example, poly(HEVE) was produced from corresponding HEVE monomer Mn = 26 400 in yield, ≥75%. The resulting polymer nearly identical prepared living cationic protected monomers except for steric regularity (meso dyads are 51% and 67% an...
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