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Elucidation of solvent effects on the catalytic behaviors for [t-BuNSiMe2Flu]TiMe2 complex during ethylene/1-hexene copolymerization

Paper ID Volume ID Publish Year Pages File Format Full-Text
52644 46879 2006 7 PDF Available
Title
Elucidation of solvent effects on the catalytic behaviors for [t-BuNSiMe2Flu]TiMe2 complex during ethylene/1-hexene copolymerization
Abstract

In the present study, the solvent effects on the catalytic behaviors of [t-BuNSiMe2Flu]TiMe2 complex during ethylene/1-hexene (EH) copolymerization were investigated. Based on the study, it revealed that activities of polymerization strongly depended on the solvent medium used regarding to its dielectric constant value (ε). In fact, four solvent mediums such as heptane, chlorobenzene, toluene, and dichloromethane were selected. It was found that at 70 °C, the catalytic activity was the highest when toluene was employed during ethylene polymerization and EH copolymerization. However, with changing the polymerization temperature to 0 °C, the solvent effect was less pronounced and low activities were obtained. In order to give a better explanation, the contact ion-pair model was applied. The microstructure of polymer was further discussed in more details.

Keywords
Metallocene catalysis; Polymerization; Solvent effect; Copolymerization; Ti complex
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Elucidation of solvent effects on the catalytic behaviors for [t-BuNSiMe2Flu]TiMe2 complex during ethylene/1-hexene copolymerization
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 7, Issue 9, September 2006, Pages 721–727
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us