Reaction Kinetics and Catalysis Letters, Vol.91, No.1, 69-75, 2007
Preparation of double metal cyanide complexes from water-insoluble zinc compounds and their catalytic performance for copolymerization of epoxide and CO2
A novel method was developed for preparing double metal cyanide complexes based on Zn-3[Co(CN)(6)](2) with water-insoluble zinc compounds such as ZnO, Zn(OH)(2) and basic ZnCO3 as precursors. The complexes obtained exhibited nearly double catalytic efficiency for the copolymerization of propylene oxide and CO2 as compared with the complexes originating from the solution precipitation method.