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Preparation of isospecific metallocene catalysts for olefin polymerization that are covalently tethered on solid surface

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ApplCatalA2002_63_75.pdf
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2002

Autor:innen

Suzuki, Noriyuki
Yu, Jian
Shioda, Nobuyuki
Asami, Hayato
Nakamura, Takashi
Fukuoka, Atsushi
Ichikawa, Masaru
Saburi, Masahiko
Wakatsuki, Yasuo

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Applied Catalysis A. 2002, 224(1-2), pp. 63-75. ISSN 0926-860X. Available under: doi: 10.1016/S0926-860X(01)00736-0

Zusammenfassung

A novel methodology was developed for the preparation of isospecific metallocene catalysts for olefin polymerization that are tethered on silica surfaces with covalent bonds. A racemic ansa-zirconocene complex that has a Si Cl moiety on its bridge was immobilized on SiO2 by the reaction of the Si Cl anchor with Si OH on the solid surface. The prepared solid catalyst was found to be effective for isospecific propene polymerization (catalyst A). Pretreatment of silica surfaces with Me3SiCl improved the catalyst performance (catalyst B). An ansa-zirconocene complex with a BH group reacted with vinyl-coated silica gel to afford another immobilized catalysts (catalyst C). This catalyst achieved satisfactorily high catalytic activity and high isotacticity in its produced polypropene.

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Fachgebiet (DDC)
540 Chemie

Schlagwörter

Olefin polymerization catalyst, Metallocene, Silica support, Covalent bond

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ISO 690SUZUKI, Noriyuki, Jian YU, Nobuyuki SHIODA, Hayato ASAMI, Takashi NAKAMURA, Thomas HUHN, Atsushi FUKUOKA, Masaru ICHIKAWA, Masahiko SABURI, Yasuo WAKATSUKI, 2002. Preparation of isospecific metallocene catalysts for olefin polymerization that are covalently tethered on solid surface. In: Applied Catalysis A. 2002, 224(1-2), pp. 63-75. ISSN 0926-860X. Available under: doi: 10.1016/S0926-860X(01)00736-0
BibTex
@article{Suzuki2002Prepa-9669,
  year={2002},
  doi={10.1016/S0926-860X(01)00736-0},
  title={Preparation of isospecific metallocene catalysts for olefin polymerization that are covalently tethered on solid surface},
  number={1-2},
  volume={224},
  issn={0926-860X},
  journal={Applied Catalysis A},
  pages={63--75},
  author={Suzuki, Noriyuki and Yu, Jian and Shioda, Nobuyuki and Asami, Hayato and Nakamura, Takashi and Huhn, Thomas and Fukuoka, Atsushi and Ichikawa, Masaru and Saburi, Masahiko and Wakatsuki, Yasuo}
}
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