SILICA-SUPPORTED NICKEL AND ZIRCONIUM CATALYSTS FOR BRANCHED POLYETHYLENE*

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SILICA-SUPPORTED NICKEL AND ZIRCONIUM CATALYSTS FOR BRANCHED POLYETHYLENE*

Papers | Updated：2021-06-21

- SILICA-SUPPORTED NICKEL AND ZIRCONIUM CATALYSTS FOR BRANCHED POLYETHYLENE*
- Vol. 21, Issue 4, Pages: 453-457(2003)
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- Published：20 August 2003
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SILICA-SUPPORTED NICKEL AND ZIRCONIUM CATALYSTS FOR BRANCHED POLYETHYLENE*[J]. 2003, 21(4): 453-457.
DOI：

SILICA-SUPPORTED NICKEL AND ZIRCONIUM CATALYSTS FOR BRANCHED POLYETHYLENE*[J]. 2003, 21(4): 453-457. DOI：

摘要

8-Aminoquinoline nickel dichloride and bis(cyclopentadienyl)zirconium dichloride (Cp2ZrCl2) were supportedsimultaneously on silica to produce branched polyethylene successfully by combined polymerization. The supportedpolymerization results showed that the molecular weight of polyethylene increased while the molecular weight distributionbecame wider and the molecular chains of oligomers remaning in the final solution became shorter as compared to theoligomers obtained in polymerization processes with pure 8-aminoquinoline nickel dichloride catalysis

as well as the Cp2ZrCl2 and nickel combination system.With decreasing amount of Ni catalyst in the supported catalyst

the molecular chains of oligomers in the resulting solution became shorter

while α-olefin selectivity increased.

Abstract

as well as the Cp2ZrCl2 and nickel combination system.With decreasing amount of Ni catalyst in the supported catalyst

the molecular chains of oligomers in the resulting solution became shorter

while α-olefin selectivity increased.

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