关键词: 茂金属, 1-癸烯, 齐聚, 结构性能关系

Abstract: The oligomerization of 1-decene was catalyzed by metallocene catalysts with different structures and the effect of conditions on 1-decene oligomerization reaction and properties of oligomers were invesgated as well. It is found that the structure of metallocene catalysts affects the catalytic behavior and the distribution of oligomer components significantly. The unbridged metallocene catalysts, sterically hindered metallocene catalysts, constrained geometry configuration metallocene catalysts, and silicon-bridged binuclear metallocene catalysts mainly produce low viscosity oligomers (kinematic viscosity at 100 ℃: 2-5 mm2/s) with dimer content more than 50%); it is interested to find that Cs symmetrical metallocene catalysts show a higher activity and primarily produce medium-high viscosity oligomers (kinematic viscosity at 100 ℃ >30 mm2/s). The GC-MS results demonstrate that the oligomer mixture is composed of dimer to pentamer.

Key words: metallocene, 1-decene, oligomerization, structure-property relations