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Supported Metallocene Catalysts Prepared by Impregnation of Silica with Metallocene/Aluminoxane/1‐Hexene Solutions
Author(s) -
Rytter Erling,
Ott Matthias
Publication year - 2001
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/1521-3927(20011101)22:17<1427::aid-marc1427>3.0.co;2-1
Subject(s) - metallocene , catalysis , materials science , 1 hexene , post metallocene catalyst , polymer chemistry , polymerization , chemical engineering , organic chemistry , chemistry , ethylene , composite material , polymer , engineering
A novel method for the preparation of supported metallocene/alkylaluminoxane catalysts has been developed. An incipient wetness impregnation of silica at ca. –40°C is performed in one step employing a solution of catalyst and cocatalyst in 1‐hexene. A prepolymerization of this system at ambient temperature yields a catalyst robust towards exposure to air, as demonstrated by a reasonable activity during ethene polymerization. A special feature of the catalyst is a uniform impregnation across the silica particles.