关键词: 后过渡金属催化剂, 超支化聚乙烯, 拓扑, 控制, 应用

Abstract: The appearance of post-transition-metal catalysts breaks the history of preparing branched polyolefin. Not only do these catalysts synthesize hyperbranched polyethylene, but also they could control the topology and molecular weight of polyethylene. In this paper, we summarize the advance in preparing branched polyethylene by following the route of Ni and Pd-based post-transition-metal catalysts. We illustrate the methods and influencing factors of controlling the topology and structure of polyolefin. Furthermore, we introduce the present application of hyperbranched polyethylene as polymer processing aids and lubricant improvers, which provide new ideas for further studying the application of polyethylene on materials processing aids.

Key words: post-transition-metal catalyst, hyperbranched polyethylene, topology, control, application