GROUP (IV) METALLOCENE COMPLEXES WITH BULKY ω-ARYLOXY ALKYL-SUBSTITUTED INDENYL LIGANDS AS CATALYST PRECURSORS FOR HOMOGENEOUS ETHYLENE POLYMERIZATION

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AHMAD KHALIL; GUIDO ALT HELMUT

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Journal: Iranian Journal of Chemistry and Chemical Engineering Year:2018 | Volume:37 | Issue:2 Page(s): 85-94

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Title

GROUP (IV) METALLOCENE COMPLEXES WITH BULKY ω-ARYLOXY ALKYL-SUBSTITUTED INDENYL LIGANDS AS CATALYST PRECURSORS FOR HOMOGENEOUS ETHYLENE POLYMERIZATION

Author(s)

AHMAD KHALIL | GUIDO ALT HELMUT | Issue Writer Certificate

Keywords

METALLOCENE COMPLEXES

BULKY ω-ARYLOXYALKYL-SUBSTITUTED INDENYL LIGANDS

ETHYLENE POLYMERIZATION

Abstract

A series of seven new complexes of zirconium and hafnium with bulky w-aryloxyalkyl substituted indenyl ligands were synthesized and characterized by NMR spectroscopy and elemental analysis. These complexes were activated with methylaluminoxane and tested for homogeneous ETHYLENE POLYMERIZATION. The zirconium catalysts showed higher activities than their hafnium analogues. The effects of increasing separation between the indenyl and the aryloxy substituent and the introduction of an extra methyl group on the indenyl moiety were also investigated. Catalyst6 bearing a spacer chain of three methylene groups between the indenyl and aryloxy substituents showed the highest activity (15500 kg PE/mol cat. h). The increase in the spacer chain length resulted in the decrease in catalyst activities.

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References

ZIRCONIUM DICHLORIDE COMPLEXES WITH BULKY Ω-9-METHYLFLUORENYLALKYL SUBSTITUTED INDENYL LIGANDS AS CATALYSTS FOR HOMOGENEOUS ETHYLENE POLYMERIZATION

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APA: Copy

AHMAD, KHALIL, & GUIDO ALT, HELMUT. (2018). GROUP (IV) METALLOCENE COMPLEXES WITH BULKY ω-ARYLOXY ALKYL-SUBSTITUTED INDENYL LIGANDS AS CATALYST PRECURSORS FOR HOMOGENEOUS ETHYLENE POLYMERIZATION. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), 37(2), 85-94. SID. https://sid.ir/paper/728079/en

Vancouver: Copy

AHMAD KHALIL, GUIDO ALT HELMUT. GROUP (IV) METALLOCENE COMPLEXES WITH BULKY ω-ARYLOXY ALKYL-SUBSTITUTED INDENYL LIGANDS AS CATALYST PRECURSORS FOR HOMOGENEOUS ETHYLENE POLYMERIZATION. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE)[Internet]. 2018;37(2):85-94. Available from: https://sid.ir/paper/728079/en

IEEE: Copy

KHALIL AHMAD, and HELMUT GUIDO ALT, “GROUP (IV) METALLOCENE COMPLEXES WITH BULKY ω-ARYLOXY ALKYL-SUBSTITUTED INDENYL LIGANDS AS CATALYST PRECURSORS FOR HOMOGENEOUS ETHYLENE POLYMERIZATION,” IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), vol. 37, no. 2, pp. 85–94, 2018, [Online]. Available: https://sid.ir/paper/728079/en

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