High activity ethylene polymerisation catalysts based on chelating diamide ligands

被引:104
作者
Gibson, VC
Kimberley, BS
White, AJP
Williams, DJ
Howard, P
机构
[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AY, England
[2] BP Chem, Sunbury Res Ctr, Sunbury On Thames TW16 7LN, Middx, England
关键词
D O I
10.1039/a706304k
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Treatment of Zr(NMe2)(4) with RNH(SiPh2)NHR and RNH(Me2SiCH2CH2SiMe2)NHR (R = 2,6-Me2C6H3) affords the four-and seven-membered chelate complexes {Zr[RN(SiPh2,)NR](NMe2)(2)(HNMe2)} and {Zr[RN(Me2SiCH2CH2SiMe2)NR](NMe2)(2)} respectively; a dramatic effect of chelate ring size on ethylene polymerisation activity and kinetic profile is found.
引用
收藏
页码:313 / 314
页数:2
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