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Copolymerization of ethylene and styrene with a MgCl2-supported CpTiCl3 catalyst

Kap Ku Kang, Jae-Kwon Oh, Young‐Tae Jeong, Takeshi Shiono, Tomiki Ikeda

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Abstract

Copolymerization of ethylene and styrene was carried out with CpTiCl3/MgCl2-PMAO as a catalyst at various temperatures and comonomer concentrations. The present catalyst system produces a pseudorandom copolymer of ethylene and styrene beside syndiotactic poly(styrene) (sPS) and poly(ethylene) (PE). The copolymers were obtained at temperature ⪈60°C, indicating the active species promoting the copolymerization being formed at elevated temperatures. On the other hand, styrene incorporation in the copolymer increases progressively with the increase of styrene concentration.

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What this paper is about

Copolymerization of ethylene and styrene was carried out with CpTiCl3/MgCl2-PMAO as a catalyst at various temperatures and comonomer concentrations. The present catalyst system produces a pseudorandom copolymer of ethylene and styrene beside syndiotactic poly(styrene) (sPS) and poly(ethylene) (PE). The copolymers were obtained at temperature ⪈60°C, indicating the active species promoting the copolymerization being formed at elevated temperatures. On the other hand, styrene incorporation in the copolymer increases progressively with the increase of styrene concentration.

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Available abstract

Copolymerization of ethylene and styrene was carried out with CpTiCl3/MgCl2-PMAO as a catalyst at various temperatures and comonomer concentrations. The present catalyst system produces a pseudorandom copolymer of ethylene and styrene beside syndiotactic poly(styrene) (sPS) and poly(ethylene) (PE). The copolymers were obtained at temperature ⪈60°C, indicating the active species promoting the copolymerization being formed at elevated temperatures. On the other hand, styrene incorporation in the copolymer increases progressively with the increase of styrene concentration.

Key concepts: Comonomer, Copolymer, Styrene, Ethylene, Polymer chemistry, Catalysis, Materials science, Chemistry

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