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Redox Control in Olefin Polymerization Catalysis by Phosphine–Sulfonate Palladium and Nickel Complexes
Author(s) -
Yang Bangpei,
Pang Wenmin,
Chen Min
Publication year - 2017
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.201700214
Subject(s) - chemistry , palladium , phosphine , norbornene , ferrocene , polymerization , polymer chemistry , sulfonate , catalysis , nickel , aryl , olefin fiber , polymer , organic chemistry , photochemistry , sodium , electrochemistry , alkyl , electrode
Two phosphine–sulfonate ligands, bearing both the ferrocene and the bi‐aryl units, were prepared and characterized. The corresponding palladium and nickel complexes are active in ethylene polymerization. In both the palladium and the nickel systems, the oxidation of the ferrocene unit leads to a decrease in catalytic activities and the polymer molecular masses. Interestingly, the neutral palladium catalyst is not active for norbornene polymerization, while the oxidized analogue shows good activity. As such, switchable polymerization could be achieved.