Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, Anhui University, Hefei, Anhui, 230601, China.
CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, China.
Angew Chem Int Ed Engl. 2023 Apr 24;62(18):e202300359. doi: 10.1002/anie.202300359. Epub 2023 Mar 24.
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.
固相聚乙烯引起了人们对聚烯烃复合材料合成的广泛关注。然而，专门设计的催化剂的复杂合成或催化剂与固体载体之间的相互作用的有害影响带来了巨大的挑战。在本研究中，通过离子簇型极性单体的沉淀均聚合，设计了一种外壳自支撑策略，将镍催化剂固载在不同的填料上。这些催化剂在乙烯聚合和共聚中表现出高活性、良好的产物形态控制和稳定的性能。此外，还可以有效地合成具有优异机械性能和定制性能的各种聚烯烃复合材料。
