Molecular Catalysis ( IF 3.9 ) Pub Date : 2020-03-07 , DOI: 10.1016/j.mcat.2020.110872 Thomas J. Williams , Alexander D.H. Smith , Jean-Charles Buffet , Zoë R. Turner , Dermot O'Hare
We report the synthesis and characterisation of eight constrained geometry complexes, with variation of the amido fragment, ansa-bridge, permethylindenyl group, metal centre and initiator groups from the parent complex Me2SB(tBuN,I*)TiCl2. These complexes have been shown to be highly active for slurry-phase ethylene polymerisation when supported on solid polymethylaluminoxane (sMAO), with activities up to 7048 kgPE/molTi/h/bar. Ethylene/1-hexene and ethylene/styrene copolymerisations have shown these complexes to be good incorporators of comonomers into the polymer chain.
中文翻译:
用于烯烃(共)聚合的第4组受约束的几何络合物
我们报告的8个几何受限络合物的合成和表征,用酰氨基片段的变体中,袢从父复杂-bridge,permethylindenyl基,金属中心和引发剂基团我2 SB(吨卜N,I *)的TiCl 2。当负载在固体聚甲基铝氧烷(sMAO)上时,这些配合物对淤浆相乙烯聚合具有很高的活性,活性高达7048 kg PE / mol Ti / h / bar。乙烯/ 1-己烯和乙烯/苯乙烯共聚表明这些络合物是共聚单体很好地结合到聚合物链中的。