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α‐olefin oligomers with narrow molar mass distributions from zirconocene/methylaluminoxane catalysts — An examination of the structure‐reactivity relationship
Author(s) -
Janiak Christoph,
Lange Katharina C. H.,
Marquardt Peter
Publication year - 1995
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/marc.1995.030160902
Subject(s) - methylaluminoxane , reactivity (psychology) , molar mass , catalysis , molar ratio , olefin fiber , polymer chemistry , metallocene , olefin polymerization , chemistry , propene , materials science , organic chemistry , polymerization , polymer , medicine , alternative medicine , pathology
A series of tert ‐butyl substituted zirconocene/methylaluminoxane catalysts illustrates the potential for the tailoring of olefin oligomers with extremely narrow molar mass distributions, which are explained on the basis of a chain‐length dependent propagation rate. Comparative oligomerization experiments provide a means to estimate the relative rates for chain propagation versus chain transfer as well as a correlation with the metallocene structure.