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A Tandem Catalytic System for the Synthesis of Ethylene–Hex-1-ene Copolymers from Ethylene Stock

✍ Scribed by Zhibin Ye; Fahad AlObaidi; Shiping Zhu

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
115 KB
Volume
25
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

Summary: A tandem catalytic system, composed of (η^5^‐C~5~H~4~CMe~2~C~6~H~5~)TiCl~3~ (1)/MMAO (modified methyl aluminoxane) and [(η^5^‐C~5~Me~4~)SiMe~2~(__t__BuN)]TiCl~2~ (2)/MMAO, was applied for the synthesis of ethylene–hex‐1‐ene copolymers with ethylene as the only monomer stock. During the reaction, 1/MMAO trimerized ethylene to hex‐1‐ene, while 2/MMAO copolymerized ethylene with the in situ produced hex‐1‐ene to poly(ethylene–hex‐1‐ene). By changing the catalyst ratio and reaction conditions, a series of copolymer grades with different hex‐1‐ene fractions at high purity were effectively produced.

The overall strategy of the tandem 1/2/MMAO catalytic system.

imageThe overall strategy of the tandem 1/2/MMAO catalytic system.

📜 SIMILAR VOLUMES

Preparation of ethylene/1-octene copolym
Preparation of ethylene/1-octene copolymers from ethylene stock with tandem catalytic system
✍ Tao Jiang; Zhijun Huang; Mingjian Luo; Hongxia Chen; Yingnan Ning 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 102 KB

## Abstract Tandem catalysis offers a novel synthetic route to the production of linear low‐density polyethylene. This article reports the use of homogeneous tandem catalytic systems for the synthesis of ethylene/1‐octene copolymers from ethylene stock as the sole monomer. The reported catalytic sy