Study on Immobilized Metallocene and Single-Site Catalysts for the Preparation of Ultra-High Molecular Weight Polyethylene at Various Polymerization Conditions |
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Authors: | Joo Han Woo |
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Affiliation: | Department of Nano Science and Technology , Sejong University, Gwanjin-gu , Seoul, Republic of Korea |
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Abstract: | Ultra-high molecular weight polyethylene (UHMWPE) possesses advantages over conventional polyolefins such as excellent mechanical properties. Recent progresses in transition-metal complexes have led to the discovery of highly active catalysts for the preparation of UHMWPE. In this study, Ti with bis(phenoxy-imine) ligand (FI catalyst) and Me2Si(C5Me4)(N-tBu)TiCl2 (CGC) were immobilized on silica and tested for the preparation of UHMWPE. Results revealed that soluble FI catalyst and CGC can produce polyethylene having relatively high molecular weight above 106 g/mol, which also can be successfully immobilized on carriers for better adaptability to production processes. |
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Keywords: | CGC FI Immobilization Ultra-high molecular weight polyethylene (UHMWPE) |
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