Polymerization of polar α-olefin with high activity and high syndiotactic selectivity catalyzed by scandium metal catalyst of fluorene coordination

Abstract

High functional poly α-olefin can be synthesized from polar α-olefin containing heteroatomic groups by coordination polymerization. These highly functional poly α-olefin materials can obviously improve the non-polar poly α-olefin materials, such as the appearance, printability, adhesion, rheology, compatibility with other polymer materials and blending properties to improve their added value and expand their industrial application range. In this paper, a series of polymer materials with potential application value were prepared with a catalyst of scandium fluorene Flu-Sc(THF)n (CH2SiMe3)2 to achieve high reaction activity (63.1×103g/(molcath)) and high selectivity polymerization (rrrr>99%) of polar α-olefin with different heteroatoms and different chain lengths.