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Styrene polymerization by ziegler‐natta catalysts based on bis(salicylaldiminate)nickel(II) complexes and methyl aluminoxane
Author(s) -
Carlini Carlo,
Macinai Alessandro,
Raspolli Galletti Anna Maria,
Sbrana Glauco
Publication year - 2004
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200450920
Subject(s) - methylaluminoxane , catalysis , polymer chemistry , natta , moiety , styrene , nickel , polymerization , ligand (biochemistry) , materials science , zirconium , chemistry , copolymer , polymer , organic chemistry , metallocene , biochemistry , receptor
The homopolymerization of styrene by using different catalytic systems based on bis(salicylaldiminate)nickel(II) and methylaluminoxane was investigated. In particular, the effect on catalyst activity and polymer characteristics by electron withdrawing groups located on the phenolic moiety was studied. The influence of the bulkiness of the substituents on the N‐aldimine ligand was also ascertained. Finally the catalytic performances were investigated as a function of the main reaction parameters, such as temperature, Al/Ni molar ratio and duration.