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Polymerization of propene with highly isospecific. SiO 2 ‐supported zirconocene catalysts activated with common alkylaluminiums
Author(s) -
Soga Kazuo,
Kim Hyun Joon,
Shiono Takeshi
Publication year - 1994
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/macp.1994.021951006
Subject(s) - methylaluminoxane , propene , tacticity , metallocene , polymerization , catalysis , polymer chemistry , polymer , materials science , chemistry , organic chemistry
Several types of SiO 2 ‐supported metallocene catalysts were prepared using chemically modified silica gel. Polymerization of propene was conducted with these catalysts combined with methylaluminoxane (MAO) or ordinary alkylaluminiums. Highly isotactic poly(propylene) with high molecular weight was obtained by the catalysts whose zirconocene ligands were chemically immobilized on SiO 2 . The preparative methods of these catalysts and the results of propene polymerization, together with the analytical data of produced polymers, are reported in some detail.