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Copolymerization of ethylene/1-octene via different pore sized silica-based-supported zirconocene/dMMAO catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
51702 46850 2008 5 PDF Available
Title
Copolymerization of ethylene/1-octene via different pore sized silica-based-supported zirconocene/dMMAO catalysts
Abstract

Here, the copolymerization of ethylene/1-octene with zirconocene/dMMAO catalyst using different pore sized silica-based supports was investigated. It revealed that the large pored silica [SiO2 (LP)] exhibited the highest polymerization activity due to both highest amount of available active sites present along with the moderate interaction between dMMAO and the support. The strong interaction between dMMAO and the support as proven by TGA analysis apparently resulted in dramatically decreased polymerization activity for the bimodal pored silica–alumina [Si–Al (BP)]. The copolymers produced were further characterized by means of DSC and 13C NMR. Although they exhibited the similar triad distribution, the degree of 1-octene insertion was different.

Keywords
Metallocene; Polymerization catalyst; LLDPE; Silica; Pore size
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Copolymerization of ethylene/1-octene via different pore sized silica-based-supported zirconocene/dMMAO catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 1, 10 October 2008, Pages 118–122
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
You save - $31
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