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Polymerization of olefins in the presence of metal powders with homogeneous catalysts
Author(s) -
Kaminsky Walter,
Zielonka Holger
Publication year - 1993
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.1993.220040703
Subject(s) - methylaluminoxane , metallocene , propene , materials science , catalysis , polymerization , homogeneous , metal , polymer chemistry , chemical engineering , organic chemistry , chemistry , metallurgy , composite material , polymer , physics , engineering , thermodynamics
Homogeneous catalysts based on metallocenes/methylaluminoxane are totally absorbed on surfaces of different metals. Because the methylaluminoxane is relatively stable against small molecules such as water covering metal surfaces, the aluminoxane can be fixed on powders without losing its activity. After treatment with the metallocene, active sites are only formed on the surface of the fillers. Upon injection of the olefins they are polymerized in the presence of the metals. Olefins such as ethene and propene, and cycloolefins or dienes, are used.