Outer‐Shell Self‐Supported Nickel Catalysts for the Synthesis of Polyolefin Composites

• Published in: Angewandte Chemie International Edition Vol. 62; no. 18; pp. e202300359 - n/a
• Main Authors: Li, Jie, Peng, Dan, Tan, Chen, Chen, Changle
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 24-04-2023
• Edition: International ed. in English
• Subjects: Catalysts; Chemical synthesis; Composites; Copolymerization; Heterogenous Catalysis; Nickel; Particulate composites; Polymerization; Polyolefins; Polymerization; Composites; Nickel; Heterogenous Catalysis; Polyolefins
• ISSN: 1433-7851; 1521-3773
• DOI: 10.1002/anie.202300359

In situ heterogeneous olefin polymerization has attracted much attention for the synthesis of polyolefin composites. However, the complicated syntheses of specially designed catalysts or the detrimental effects of interactions between catalyst and solid supports pose great challenges. In this contribution, an outer‐shell self‐supporting strategy was designed to heterogenize nickel catalysts on different fillers via precipitation homopolymerization of ionic cluster type polar monomer. These catalysts demonstrated high activity, good product morphology control, and stable performances in ethylene polymerization and copolymerization. Moreover, various polyolefin composites with great mechanical and customized properties can be efficiently synthesized.
A simple and general heterogenization route was employed to prepare outer‐shell self‐supported α‐diimine Ni catalysts. These heterogeneous catalysts demonstrate high activity, stable catalytic performances towards different fillers, and good morphology control in the synthesis of polyolefin composites with great mechanical and customized properties.