Synthesis of and Ethylene Polymerization Using Iminophosphonamide Complexes of Group 4

Synthesis of and Ethylene Polymerization Using Iminophosphonamide Complexes of Group 4

Efficient syntheses of iminophosphonamide [R2P(NR‘)NHR‘] complexes of group 4 via amine elimination reactions and the solid-state structures of [R2P(NR‘)2]2ZrCl2 and mixed Cp[R2P(NR‘)2]ZrCl2 complexes are reported. These complexes are active, ethylene, polymerization catalysts (106−107 g PE/mol Zr...

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Veröffentlicht in:Organometallics 1999-07, Vol.18 (15), p.2731-2733
Hauptverfasser: Vollmerhaus, Rainer, Shao, Pencheng, Taylor, Nicholas J, Collins, Scott
Format: Artikel
Sprache:eng
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Zusammenfassung:Efficient syntheses of iminophosphonamide [R2P(NR‘)NHR‘] complexes of group 4 via amine elimination reactions and the solid-state structures of [R2P(NR‘)2]2ZrCl2 and mixed Cp[R2P(NR‘)2]ZrCl2 complexes are reported. These complexes are active, ethylene, polymerization catalysts (106−107 g PE/mol Zr × h) in the presence of MAO and provide high molecular weight poly(ethylene) with narrow molecular weight distributions.
ISSN:0276-7333
1520-6041
DOI:10.1021/om990341p