Upitak Kanokon, Thomas Christophe M
Chimie ParisTech, CNRS, Institut de Recherche de Chimie Paris, PSL University, Paris, 75005, France.
Macromol Rapid Commun. 2025 Apr;46(6):e2400895. doi: 10.1002/marc.202400895. Epub 2025 Jan 27.
The development of catalysts that are both robust and highly active at room temperature can often be seen as a major challenge in anionic polymerization. However, these properties are desirable for polymer synthesis because they allow for easy and sustainable production of interesting materials. Here, iron and magnesium complexes are used to form in situ generated metalate complexes that are shown to be highly active in the room temperature copolymerization of methyl methacrylate and lactide. Their ability to form homopolymers and block copolymers of poly(methyl methacrylate) and polylactide shows that they are more stable than their organolithium counterparts and also more active than the neutral complexes from which they are derived.
开发在室温下既稳定又具有高活性的催化剂通常被视为阴离子聚合中的一项重大挑战。然而，这些特性对于聚合物合成来说是理想的，因为它们有助于轻松且可持续地生产出有趣的材料。在此，铁和镁配合物被用于原位生成金属酸盐配合物，这些配合物在甲基丙烯酸甲酯和丙交酯的室温共聚反应中表现出高活性。它们形成聚甲基丙烯酸甲酯和聚丙交酯均聚物及嵌段共聚物的能力表明，它们比相应的有机锂化合物更稳定，并且比其衍生出的中性配合物更具活性。
