Patent ID: 8530616
Filing Date: 2013-09-10
Classification: C08G

Abstract:
1. A method of preparing poly (alkylene carbonate), comprising: alternating copolymerizing carbon dioxide and one or more epoxide compounds, in the presence of a compound represented by Formula 5 using a complex compound represented by Formula 1 as a catalyst, wherein the one or more epoxide compounds is selected from the group consisting of (C2-C20)alkylene oxide substituted or unsubstituted with halogen, (C1-C20)alkyloxy, (C6-C20)aryloxy or (C6-C20)ar(C1-C20)alkyloxy; (C4-C20)cycloalkylene oxide substituted or unsubstituted with halogen, (C1-C20)alkyloxy, (C6-C20)aryloxy or (C6-C20)ar(C1-C20)alkyloxy; and (C8-C20)styrene oxide substituted or unsubstituted with halogen, (C1-C20)alkyloxy, (C6-C20)aryloxy, (C6-C20)ar(C1-C20)alkyloxy or (C1-C20)alkyl wherein the complex compound of [Formula 1] is represented by: wherein M is trivalent cobalt or trivalent chromium; A is an oxygen or sulfur atom; Q is a diradical that connects two nitrogen atoms; R two of R at least one of hydrogens included in R X− is independently a halogen anion; HCO Z is a nitrogen or phosphorus atom; R R X′ is an oxygen atom, a sulfur atom or N—R (wherein R is (C1-C20) alkyl); n is an integer obtained by adding 1 to a total number of proton groups included in R X a nitrogen atom of imine is able to be decoordinated from M; and wherein the compound of [Formula 5] is represented by: wherein J is a C1-C60 hydrocarbyl c-valent radical with or without an ether group, an ester group or an amine group; LH is —OH or —CO