Lewis pair polymerization (LPP) has emerged as a powerful tool for the efficient polymerization of polar vinyl monomers. However, air/moisture, highly sensitive metal-based catalysts, and low reaction temperatures are necessary for achieving highly active LPP with a high degree of control. In this contribution, we report the development of a robust Lewis pair (LP) organic catalyst based on tris(2,4-difluorophenyl)borane and triisobutylphosphine, which not only renders efficient and living LPP of acrylates for the first time at ambient or even industrially relevant temperature (60–80 °C) but also allows the polymerization under an open-air condition. Accordingly, well-defined multiblock acrylic copolymers have been synthesized successfully over a broad reaction temperature range. Good thermal stability, appreciable air/moisture tolerance, high efficiency, and precise controllability of this LP organic catalyst thus establish LPP as a truly green/sustainable and practical polymerization methodology.

中文翻译：

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三（2,4-二氟苯基）硼烷/三异丁基膦路易斯对：一种用于丙烯酸酯活性聚合的耐高温、耐空气/湿气的有机催化剂

路易斯对聚合 (LPP) 已成为极性乙烯基单体有效聚合的有力工具。然而，空气/水分、高度敏感的金属基催化剂和低反应温度是实现高度可控的高活性 LPP 所必需的。在此贡献中，我们报告了基于三（2,4-二氟苯基）硼烷和三异丁基膦的稳健路易斯对（LP）有机催化剂的开发，该催化剂不仅首次在环境温度甚至工业相关温度（60-80°C），但也允许在露天条件下聚合。因此，已经在很宽的反应温度范围内成功合成了明确定义的多嵌段丙烯酸共聚物。良好的热稳定性，可观的空气/湿气耐受性，