Invention Grant
US08871898B2 Method for preparing carbon dioxide/epoxide copolymers containing ether linkages 有权
制备含醚键的二氧化碳/环氧化物共聚物的方法

Method for preparing carbon dioxide/epoxide copolymers containing ether linkages
Abstract:
Provided is a method for preparing poly(alkylene carbonate) containing ether linkages, by the copolymerization of an epoxy compound and carbon dioxide, with a trivalent metal complex prepared from a salen type ligand containing a quaternary ammonium salt, and a double metal cyanide (DMC) catalyst together. The amount of ether linkages can be controlled by regulating the weight ratio of two catalysts and the carbon dioxide pressure.
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