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Copper‐Mediated Polymerization without External Deoxygenation or Oxygen Scavengers
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-06-19 , DOI: 10.1002/anie.201804205
Evelina Liarou 1 , Richard Whitfield 1 , Athina Anastasaki 1 , Nikolaos G Engelis 1 , Glen R Jones 1 , Kelly Velonia 2 , David M Haddleton 1
Affiliation  

As a method for overcoming the challenge of rigorous deoxygenation in copper‐mediated controlled radical polymerization processes [e.g., atom‐transfer radical polymerization (ATRP)], reported here is a simple Cu0‐RDRP (RDRP=reversible deactivation radical polymerization) system in the absence of external additives (e.g., reducing agents, enzymes etc.). By simply adjusting the headspace of the reaction vessel, a wide range of monomers, namely acrylates, methacrylates, acrylamides, and styrene, can be polymerized in a controlled manner to yield polymers with low dispersities, near‐quantitative conversions, and high end‐group fidelity. Significantly, this approach is scalable (ca. 125 g), tolerant to elevated temperatures, compatible with both organic and aqueous media, and does not rely on external stimuli which may limit the monomer pool. The robustness and versatility of this methodology is further demonstrated by the applicability to other copper‐mediated techniques, including conventional ATRP and light‐mediated approaches.

中文翻译:


无需外部脱氧或除氧剂的铜介导聚合



作为克服铜介导的受控自由基聚合过程[例如原子转移自由基聚合(ATRP)]中严格脱氧挑战的方法,本文报道了一种简单的 Cu 0 -RDRP(RDRP=可逆失活自由基聚合)系统不存在外部添加剂(例如还原剂、酶等)。通过简单地调节反应容器的顶部空间,多种单体,即丙烯酸酯、甲基丙烯酸酯、丙烯酰胺和苯乙烯,可以以受控方式聚合,产生低分散性、近定量转化率和高端基的聚合物。保真度。值得注意的是,这种方法具有可扩展性(约 125 g),耐高温,与有机和水介质兼容,并且不依赖于可能限制单体池的外部刺激。该方法的稳健性和多功能性通过对其他铜介导技术(包括传统 ATRP 和光介导方法)的适用性得到了进一步证明。
更新日期:2018-06-19
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