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Copolymerization of ethylene and styrene with a MgCl 2 ‐supported CpTiCl 3 catalyst
Author(s) -
Kang Kap Ku,
Oh JaeKwon,
Jeong YoungTae,
Shiono Takeshi,
Ikeda Tomiki
Publication year - 2000
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/(sici)1521-3935(20000501)201:8<846::aid-macp846>3.0.co;2-i
Subject(s) - comonomer , copolymer , styrene , ethylene , polymer chemistry , catalysis , materials science , chemistry , organic chemistry , polymer
Copolymerization of ethylene and styrene was carried out with CpTiCl 3 /MgCl 2 ‐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.