A CATALYST SYSTEM FOR RING-OPENING POLYMERIZATIONS OF EPOXY COMPOUNDS

摘要

PURPOSE: A catalyst for epoxy ring-opening polymerization is provided to reduce the generation of alcohol byproducts and to generate polymer of a low unsaturation degree by including the active components of metallic complex compounds, organic complex agents, and phosphorus compounds. CONSTITUTION: A catalyst for epoxy ring-opening polymerization includes metallic complex compounds, organic complex agents, and phosphorus compounds. The metallic complex compounds are selected from a group based on double metal cyanide. The organic complex agents are selected from a group composed of C1 to C10 alcohols, glycol of 500 to 5000 number average molecular weights, C1 to C6 alkyl lactates, and the mixture of the same. The double metal cyanide is zinc chloride-hexacyanocobaltate zinc represented by chemical formula a. The content of the organic complex agents is between 0.1 and 20 parts by weight based 1 part by weight of the metallic complex compounds. The content of the phosphorus compounds is between 0.1 and 20 parts by weight based on 1 part by weight of the metallic complex compounds.