Premium
Tridentate Aryloxy‐Based Titanium Catalysts towards Ethylene Oligomerization and Polymerization
Author(s) -
Audouin Hugo,
Bellini Rosalba,
Magna Lionel,
Mézailles Nicolas,
OlivierBourbigou Hélène
Publication year - 2015
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201500721
Subject(s) - methylaluminoxane , chemistry , titanium , catalysis , polymer chemistry , ethylene , polymerization , polyethylene , coordination polymerization , ligand (biochemistry) , amine gas treating , bridging ligand , ether , organic chemistry , metallocene , ion , solution polymerization , polymer , biochemistry , receptor
A series of tridentate aryloxy‐based ligands were synthesized and characterized for their coordination behaviour towards Ti IV . Coordination studies revealed that the nature of the central atom (amine vs. ether) and the type of bridging spacer (aromatic vs. aliphatic) are important aryloxy ligand parameters and influence the ligand coordination mode and the formation of stable titanium complexes. This series of titanium complexes were evaluated in ethylene oligomerization and polymerization after activation with methylaluminoxane (MAO) and showed the preferential formation of polyethylene. In some cases, the formation of a small amount of 1‐hexene suggests the existence of several catalytic centres in the reaction mixture.