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Polymerization of styrene by Novel Ni(a)‐ and Pd(II)‐based complexes
Author(s) -
Sun HongMei,
Yang MuJle
Publication year - 2000
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.20000180619
Subject(s) - chemistry , acetylide , phosphine , catalysis , styrene , palladium , nickel , transition metal , polystyrene , polymerization , metal , polymer chemistry , telomerization , medicinal chemistry , organic chemistry , copolymer , polymer
The catalytic activities of nine neutral nickel and palladium α‐acetylide complexes [M= (C=CR) 2 (PR' 3 ) 2 , M=Ni, Pd; R = Ph, CH 2 OH, CH 2 OOCH, CH 2 OOCPh, CH 2 OOCPhOH‐ o ; R' = Ph, Bu] are compared. Among them, Ni(C‐CPh) 2 (PBu 3 )] shows the highest catalytic activity and gives the polystyrene with high molecular weight ( M w = 188800) and a syndio‐rich microstructure. The catalytic behavior of transition metal acetylides is related to metal, phosphine, and alkynyl ligands bonded to the metal atoms.