Kirillov Evgueni, Carpentier Jean-François
UMR 6226 CNRS - Univ Rennnes, Organometallics: Materials & Catalysis Institut des Sciences Chimiques de Rennes (ISCR), Campus de Beaulieu, F-35042, Rennes, France.
Chem Rec. 2021 Feb;21(2):357-375. doi: 10.1002/tcr.202000142. Epub 2020 Dec 17.
The development of new metallocene-based polymerization catalysts and innovative processes derived thereof still constitutes a challenge for the manufacturing of polyolefinic materials with tailored properties (e. g. particular microstructure or topology, ultra-high molecular weight, high melting transition, and their combinations) for contemporary commercial applications. This personal account summarizes our continuing endeavors to advance the family of industry-relevant stereoselective propylene polymerization catalysts based on C -symmetric group 4 ansa-metallocenes incorporating multi-substituted fluorenyl-cyclopentadienyl {Cp/Flu} ligands. Within the framework of this project, valuable structural and catalytic data, harvested both for neutral metallocenes and for metallocenium ion-pairs, have been used for rational design of more efficient catalytic systems, reluctant towards side reactions, and for providing new stereoregular value-added polymer materials.
开发新型茂金属基聚合催化剂及其衍生的创新工艺，对于制造具有定制性能（例如特定的微观结构或拓扑结构、超高分子量、高熔点转变及其组合）的聚烯烃材料以满足当代商业应用而言，仍然是一项挑战。本个人报告总结了我们持续不断的努力，即推进基于含有多取代芴基 - 环戊二烯基{Cp/Flu}配体的C -对称第4族桥连茂金属的一系列与工业相关的立体选择性丙烯聚合催化剂。在该项目框架内，从中性茂金属和茂金属离子对获得的有价值的结构和催化数据，已用于合理设计更高效、不易发生副反应的催化体系，并用于提供新型立构规整的增值聚合物材料。
