Sequence Controlled Polymers from a Novel β‐Cyclodextrin Core,Macromolecular Rapid Communications

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Sequence Controlled Polymers from a Novel β‐Cyclodextrin Core
Macromolecular Rapid Communications ( IF 4.2 ) Pub Date : 2017-11-07 , DOI: 10.1002/marc.201700501
Yamin Abdouni ₁ , Gökhan Yilmaz ₁ , C. Remzi Becer ₁

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In this work the synthesis and use of a novel β‐cyclodextrin‐based single electron transfer‐living radical polymerization (SET‐LRP) initiator are reported. Three different approaches toward the synthesis of this initiator, based on several “click”‐like reactions (copper(I)‐catalyzed azide‐alkyne cycloaddition, nucleophilic thiol‐ene reaction, and radical thiol‐ene reaction), are explored and discussed. Synthesis via radical thiol‐ene proves to be most successful in achieving this. The β‐cyclodextrin‐based initiator is subsequently used for the polymerization of several acrylates in a controlled fashion, yielding 7‐arm multiblock copolymers. The achieved sequence‐controlled polymers exhibit low dispersities (≤1.12) and are completed under 6.5 h at high monomer conversion (≥95%) for each block.

中文翻译：

新型β-环糊精核的序列控制聚合物

在这项工作中，报道了新型基于β-环糊精的单电子转移活性自由基聚合（SET-LRP）引发剂的合成和使用。探索和讨论了基于几种“点击”样反应（铜（I）催化的叠氮化物-炔烃环加成，亲核硫醇-烯反应和自由基硫醇-烯反应）的三种不同的引发剂合成方法。事实证明，通过自由基硫醇进行合成是最成功的。基于β-环糊精的引发剂随后被用于以受控方式聚合几种丙烯酸酯，生成7臂多嵌段共聚物。所获得的序列控制聚合物表现出较低的分散度（≤1.12），并且在6.5小时内以较高的单体转化率（≥95％）完成了每个嵌段的制备。

更新日期：2017-11-07

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