摘要
使用一个催化剂制备乙烯基烯烃嵌段共聚物(OBCs)具有极高的科学挑战性:催化乙烯、α-烯烃共聚合时,需要催化剂同时具备高的以及低的α-烯烃选择性.王洋和刘国明等通过催化体系设计解决了这一难题,在催化体系中引入动态配体调节这一概念,成功实现了单一催化剂、无链转移试剂制备OBCs.这一方法创立了OBCs新的合成范式,有望改变现有OBCs工业化生产路径,并指导其他高性能聚合物材料合成.
The preparation of ethylene-based block copolymers(OBCs)using a single catalyst represents a significant scientific challenge.During the catalytic copolymerization of ethylene andα-olefins,the catalyst must simultaneously exhibit both high and lowα-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.
作者
陈昶乐
Chang-le Chen(Department of Polymer Science and Engineering,University of Science and Technology of China,Hefei 230026)
出处
《高分子学报》
北大核心
2025年第8期1257-1260,共4页
Acta Polymerica Sinica
关键词
催化剂
共聚
聚烯烃
烯烃嵌段共聚物
弹性体
Catalyst
Copolymerization
Polyolefin
Olefin block copolymers
Elastomer
