Ligand effects on olefin polymerizations with multinuclear zirconocene catalysts having dimethylsilylferrocene as a cyclopentadienyl substituent

Makoto Mitani; Kunihiro Oouchi; Michiya Hayakawa; Tohru Yamada; Teruaki Mukaiyama

doi:10.1002/macp.1996.021970603

Ligand effects on olefin polymerizations with multinuclear zirconocene catalysts having dimethylsilylferrocene as a cyclopentadienyl substituent

Makoto Mitani, Kunihiro Oouchi, Michiya Hayakawa, Tohru Yamada, Teruaki Mukaiyama

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Olefin polymerizations were conducted with novel multimetallic zirconocene catalyst systems: R-CpCpZrCl₂ (1) (R = dimethylsilylferrocene; Cp = cyclopentadienyl) and (R-Cp)₂ZrCl₂ (2) in combination with methylaluminoxane or tetrakis(pentafluorophenyl) borates. In ethylene polymerization, the maximum catalyst activity was observed at a lower temperature (30-45°C) when using complex 1 or 2, compared with Cp₂ZrCl₂. It was also revealed that complex 1 is a more effective catalyst than Cp₂ZrCl₂ for copolymerization of ethylene and propene.

Original language	English
Pages (from-to)	1815-1822
Number of pages	8
Journal	Macromolecular Chemistry and Physics
Volume	197
Issue number	6
DOIs	https://doi.org/10.1002/macp.1996.021970603
Publication status	Published - 1996 Jun
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics
Physical and Theoretical Chemistry
Polymers and Plastics
Organic Chemistry
Materials Chemistry

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10.1002/macp.1996.021970603

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title = "Ligand effects on olefin polymerizations with multinuclear zirconocene catalysts having dimethylsilylferrocene as a cyclopentadienyl substituent",

abstract = "Olefin polymerizations were conducted with novel multimetallic zirconocene catalyst systems: R-CpCpZrCl2 (1) (R = dimethylsilylferrocene; Cp = cyclopentadienyl) and (R-Cp)2ZrCl2 (2) in combination with methylaluminoxane or tetrakis(pentafluorophenyl) borates. In ethylene polymerization, the maximum catalyst activity was observed at a lower temperature (30-45°C) when using complex 1 or 2, compared with Cp2ZrCl2. It was also revealed that complex 1 is a more effective catalyst than Cp2ZrCl2 for copolymerization of ethylene and propene.",

author = "Makoto Mitani and Kunihiro Oouchi and Michiya Hayakawa and Tohru Yamada and Teruaki Mukaiyama",

year = "1996",

month = jun,

doi = "10.1002/macp.1996.021970603",

language = "English",

volume = "197",

pages = "1815--1822",

journal = "Macromolecular Chemistry and Physics",

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T1 - Ligand effects on olefin polymerizations with multinuclear zirconocene catalysts having dimethylsilylferrocene as a cyclopentadienyl substituent

AU - Mitani, Makoto

AU - Oouchi, Kunihiro

AU - Hayakawa, Michiya

AU - Yamada, Tohru

AU - Mukaiyama, Teruaki

PY - 1996/6

Y1 - 1996/6

N2 - Olefin polymerizations were conducted with novel multimetallic zirconocene catalyst systems: R-CpCpZrCl2 (1) (R = dimethylsilylferrocene; Cp = cyclopentadienyl) and (R-Cp)2ZrCl2 (2) in combination with methylaluminoxane or tetrakis(pentafluorophenyl) borates. In ethylene polymerization, the maximum catalyst activity was observed at a lower temperature (30-45°C) when using complex 1 or 2, compared with Cp2ZrCl2. It was also revealed that complex 1 is a more effective catalyst than Cp2ZrCl2 for copolymerization of ethylene and propene.

AB - Olefin polymerizations were conducted with novel multimetallic zirconocene catalyst systems: R-CpCpZrCl2 (1) (R = dimethylsilylferrocene; Cp = cyclopentadienyl) and (R-Cp)2ZrCl2 (2) in combination with methylaluminoxane or tetrakis(pentafluorophenyl) borates. In ethylene polymerization, the maximum catalyst activity was observed at a lower temperature (30-45°C) when using complex 1 or 2, compared with Cp2ZrCl2. It was also revealed that complex 1 is a more effective catalyst than Cp2ZrCl2 for copolymerization of ethylene and propene.

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Ligand effects on olefin polymerizations with multinuclear zirconocene catalysts having dimethylsilylferrocene as a cyclopentadienyl substituent

Abstract

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