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Synthesis, structure, and olefin polymerization catalysis of a novel vanadium(III) 1,1′‐bi‐2‐naphtholate complex
Author(s) -
Sato Yoshinori,
Nakayama Yuushou,
Yasuda Hajime
Publication year - 2003
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.12401
Subject(s) - methylaluminoxane , polymerization , vanadium , olefin polymerization , polymer chemistry , catalysis , chemistry , ethylene , olefin fiber , materials science , crystallography , metallocene , organic chemistry , polymer
The reaction of VCl 3 with ( S )‐(–)‐Na 2 (binol) (binol = 1,1′‐bi‐2‐naphtholate) gave a new vanadium(III) complex, [Na(OEt 2 )] 3 [V(binol) 3 ] (Fig. 1). The X‐ray crystallographic structure of this complex (Complex 1) in Figure 1 reveals its propeller‐like structure, which is similar to those of the reported rare earth analogues. The complex showed moderate catalytic activities for ethylene polymerization upon activation with modified methylaluminoxane (MMAO) and with diethylaluminum chloride (DEAC). The Complex 1/DEAC system also catalyzed the polymerization of propylene to give atactic polypropylene with low activity. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 89: 1659–1662, 2003 1Complex 11. Molecular structure of [Na(OEt 2 )] 3 [V(binol) 3 ] (Complex 1).