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Carbon Nanotubes as a Ligand in Cp2ZrCl2-Based Ethylene Polymerization

✍ Scribed by Sungjin Park; Seung Woong Yoon; Kyung-Bok Lee; Dong Jin Kim; Young Hwan Jung; Youngkyu Do; Hyun-jong Paik; Insung S. Choi

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
126 KB
Volume
27
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

Summary: We report a simple method for tuning catalytic property of a metallocene‐based catalyst, Cp~2~ZrCl~2~, for ethylene polymerization by the direct adsorption of Cp~2~ZrCl~2~ onto multi‐walled carbon nanotubes (MWCNTs). The direct interactions between MWCNTs and the Cp rings of Cp~2~ZrCl~2~ controlled the polymerization behaviors, and we could generate polyethylene with an extremely high molecular weight ($\overline M _{\rm w}$ = 1 000 000) at 30 °C and under 1 atm of ethylene gas.

Preparation of Cp~2~ZrCl~2~‐MWCNT.

magnified imagePreparation of Cp~2~ZrCl~2~‐MWCNT.

πŸ“œ SIMILAR VOLUMES

Modeling of Slurry Polymerization of Eth
Modeling of Slurry Polymerization of Ethylene Using a Soluble Cp2ZrCl2/MAO Catalytic System
✍ Mostafa Ahmadi; Mehdi Nekoomanesh; Roghieh Jamjah; Gholamhossein Zohuri; Hassan πŸ“‚ Article πŸ“… 2007 πŸ› John Wiley and Sons 🌐 English βš– 301 KB

## Abstract The slurry homopolymerization of ethylene catalyzed by a Cp~2~ZrCl~2~/MAO catalytic system was studied. A simple kinetic model including initiation, propagation, transfer to monomer and cocatalyst, spontaneous transfer and spontaneous deactivation was developed to predict dynamic yield

Linear low density polyethylene (LLDPE)
Linear low density polyethylene (LLDPE) from ethylene using TpMsNiCl (TpMs = hydridotris(3-mesitylpyrazol-1-yl)) and Cp2ZrCl2 as a tandem catalyst system
✍ Luciano G Furlan; FΓ‘bio A Kunrath; Raquel S Mauler; Roberto F de Souza; Osvaldo πŸ“‚ Article πŸ“… 2004 πŸ› Elsevier Science 🌐 English βš– 130 KB

Linear low density polyethylene (LLDPE) with different branching contents were prepared from ethylene, without the addition of ␣-olefin comonomer, using a combination of catalyst precursors {Tp Ms }NiCl (1) (Tp Ms = hydridotris(3-mesitylpyrazol-1-yl)) and Cp 2 ZrCl 2 (2) activated with MAO/TMA (1:1)