The preparation of ethylene-based block copolymers (OBCs) using a single catalyst represents a significant scientific challenge. During the catalytic copolymerization of ethylene and
α
-olefins
the catalyst must simultaneously exhibit both high and low
α
-olefin selectivity—an inherently conflicting requirement. Wang
Liu
and coworkers have addressed this problem through the rational design of a catalytic system. By introducing the concept of dynamic ligand modulation
they successfully realized the synthesis of OBCs using a single catalyst without the need for chain transfer agents. This approach establishes a novel synthetic paradigm for OBCs
offering the potential to transform current industrial production processes and providing valuable insights for the design and synthesis of other high-performance polymeric materials.
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references
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