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Borane Activators for Late‐Transition Metal Catalysts in Norbornene Polymerization
Author(s) -
Lassahn PaulGerhard,
Janiak Christoph,
Oh JaeSeung
Publication year - 2002
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 - 10.1002/1521-3927(20020101)23:1<16::aid-marc16>3.0.co;2-k
Subject(s) - methylaluminoxane , norbornene , borane , polymerization , polymer chemistry , catalysis , chemistry , transition metal , palladium , metallocene , organic chemistry , polymer
Nickel(II) and palladium(II) complexes of the general type [MCl 2 {Ph 2 P(CH 2 ) n PPh 2 }] with n = 2, 3 and M = Ni ( 2 , 3 ), Pd ( 4 , 5 ) have been utilized as catalysts for the polymerization reaction of norbornene. It was found that the use of B(C 6 F 5 ) 3 /triethylaluminium (TEA) in comparison to methylaluminoxane as an activator towards complexes 2 , 3 and 5 gave comparable polymerization activities, and the system 4 /B(C 6 F 5 ) 3 /TEA even led to an extremely high polymerization activity of 10 7 g polymer /mol metal · h.