RAFT-Polymerization-Induced Self-Assembly and Reorganizations: Ultrahigh-Molecular-Weight Polymer and Morphology-Tunable Micro-/Nanoparticles in One Pot
RAFT-Polymerization-Induced Self-Assembly and Reorganizations: Ultrahigh-Molecular-Weight Polymer and Morphology-Tunable Micro-/Nanoparticles in One Pot
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RAFT 聚合诱导的自组装和重组：超高分子量聚合物和形态可调的微米/纳米颗粒一锅法
DOI：
10.1002/marc.201600422
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发表时间：
2016
影响因子：
4.6
通讯作者：
Wan Wen-Ming
中科院分区：
文献类型：
--
作者：
Zhang Xiao-Yun;Liu Dong-Ming;Lv Xin-Hu;Sun Miao;Sun Xiao-Li;Wan Wen-Ming
介绍了一锅法在温和条件下成功合成了具有超高分子量（UHMW） （Mw= 1.31 × 106g mol - 1）和微纳米形貌的窄分布（Đ= 1.22）乙烯基聚合物。该方法包括以下四个阶段：均相聚合、聚合诱导自组装（PISA）、PISA和重组、PISA和多重重组。生产超高分子量聚苯乙烯的关键是通过在不同的纳米反应器中分离自由基来减少自由基终止，并通过促进这些反应器的进一步原位重组来确保足够的链传播。因此，这种方法赋予聚合物材料在一个锅中温和条件下具有超高分子量和可调谐微/纳米颗粒的杰出性能。
A one‐pot method is introduced for the successful synthesis of narrow‐distributed (Đ= 1.22) vinyl polymer with both ultrahigh molecular weight (UHMW) (Mw= 1.31 × 106g mol−1) and micro‐/nanomorphology under mild conditions. The method involves the following four stages: homogeneous polymerization, polymerization‐induced self‐assembly (PISA), PISA and reorganization, and PISA and multiple reorganizations. The key points to the production of UHMW polystyrene are to minimize radical termination by segregating radicals in different nanoreactors and to ensure sufficient chain propagation by promoting further reorganizations of these reactors in situ. This method therefore endows polymeric materials with the outstanding properties of both UHMW and tunable micro‐/nanoparticles under mild conditions in one pot.