The direct polymerization of 2-methacryloxyethyl glucoside via aqueous reversible addition-fragmentation chain transfer (RAFT) polymerization

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• 作者：Lowe ; Andrew B. ; Sumerlin ; Brent S. ; McCormick ; Charles L.
• 关键词：Reversible addition fragmentation chain transfer polymerization ; Polymer synthesis ; Glycopolymer
• 刊名：Polymer
• 出版年：2003
• 出版时间：October, 2003
• 年：2003
• 卷：44
• 期：22
• 页码：6761-6765
• 全文大小：216 K

文摘

A preliminary study on the direct controlled radical polymerization of a glycomonomer, namely 2-methacryloxyethyl glucoside (MAGlu), under reversible addition-fragmentation chain transfer (RAFT) polymerization conditions in aqueous media has been conducted. This represents the first example detailing the direct polymerization of a sugar monomer via RAFT and, significantly, has been conducted without protecting group chemistry. 4-Cyano-4-methyl-4-thiobenzoylsulfanyl butyric acid (CTP) was employed as the RAFT chain transfer agent (CTA) due to its inherent water-solubility and its applicability for methacrylic monomers. The homopolymerization displays all the characteristics of a controlled/‘living’ polymerization—linear increase in M_n with conversion, pseudo-first order kinetics, the final polymers have narrow molecular distributions and novel block copolymers can be prepared.