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Electro‐Controlled Living Cationic Polymerization
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-03-23 , DOI: 10.1002/anie.201712270 Wei Sang 1 , Qiang Yan 1
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-03-23 , DOI: 10.1002/anie.201712270 Wei Sang 1 , Qiang Yan 1
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Cationic polymerizations have long been industrialized; however, stimulus‐regulated cationic polymerization remains to be developed. An electrochemically controlled living cationic polymerization is presented for the first time. In the presence of external potential and organic‐based electrocatalyst, a series of monomers can be polymerized under a cationic chain‐transfer mechanism. The resulting polymers exhibit well‐defined molecular mass, narrow dispersity, and good chain‐end fidelity. By controlling the external potential to switch the electrocatalyst between its oxidized and reduced states, ON/OFF polymerization can be achieved. This method is a versatile way to a large range of monomers, including vinyl ether‐type and p‐substituted styrene‐type monomers. Given the sustainability feature and broad interest of electrochemical synthetic techniques, we envisaged that this method would lead a new direction of external regulated living ionic polymerization.
中文翻译：
电控活性阳离子聚合
阳离子聚合早已工业化。然而，受刺激调节的阳离子聚合仍有待开发。首次提出了电化学控制的活性阳离子聚合。在存在外部电势和有机基电催化剂的情况下，可以在阳离子链转移机制下聚合一系列单体。所得聚合物表现出明确的分子量，较窄的分散度和良好的链端保真度。通过控制外部电势以在电催化剂的氧化态和还原态之间切换，可以实现ON / OFF聚合。此方法是一种通用的方式来大范围的单体，包括乙烯基醚型和p预取代的苯乙烯型单体。考虑到电化学合成技术的可持续性特征和广泛兴趣，我们设想该方法将为外部调控的活性离子聚合带来新的方向。
更新日期：2018-03-23
中文翻译：
电控活性阳离子聚合
阳离子聚合早已工业化。然而，受刺激调节的阳离子聚合仍有待开发。首次提出了电化学控制的活性阳离子聚合。在存在外部电势和有机基电催化剂的情况下，可以在阳离子链转移机制下聚合一系列单体。所得聚合物表现出明确的分子量，较窄的分散度和良好的链端保真度。通过控制外部电势以在电催化剂的氧化态和还原态之间切换，可以实现ON / OFF聚合。此方法是一种通用的方式来大范围的单体，包括乙烯基醚型和p预取代的苯乙烯型单体。考虑到电化学合成技术的可持续性特征和广泛兴趣，我们设想该方法将为外部调控的活性离子聚合带来新的方向。
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