Lee, Bora Ko, Nan Hee Ahn, Byoung Sung Cheong, Minserk Kim, Hoon Sik Lee, Je Seung 2024-01-21T00:04:59Z 2024-01-21T00:04:59Z 2021-09-02 2007-11-20 0253-2964 https://pubs.kist.re.kr/handle/201004/133974 Homogeneous zinc tetrahalide complexes, highly active catalysts for the coupling reactions of alkylene oxide and CO2 produce alkylene carbonates, were heterogenized due to their tendency to decompose produced alkylene carbonates during the distillation process. Heterogenization of homogeneous zinc tetrahalide complexes was achieved by polymerizing 1-alkyl-3-vinylimidazolium zinc tetrahalides. These polymerized zinc tetrahalide catalysts displayed similar activities to their corresponding monomeric analogues for the coupling reactions of carbon dioxide with ethylene oxide (EO) or propylene oxide (PO) to produce ethylene carbonate (EC) or propylene carbonate (PC). TGA studies showed that the polymer-supported zinc tetrahalide catalysts are thermally stable up to 320 degrees C. The catalyst recycle test showed that the supported catalysts could be reused over six times. After removal of the polymer-supported catalyst through a simple filtration, EC was able to be isolated without decomposition. English WILEY-V C H VERLAG GMBH CARBON-DIOXIDE CYCLIC CARBONATES EFFICIENT CATALYSTS ETHYLENE CARBONATE IONIC LIQUIDS COMPLEXES OXIRANES HALIDE SYSTEM OXIDE Polymer-supported zinc tetrahalide catalysts for the coupling reactions of CO2 and epoxides Article 1 BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.28, no.11, pp.2025 - 2028 BULLETIN OF THE KOREAN CHEMICAL SOCIETY 28 11 2025 2028 scie scopus kci ART001202339 000252628800027 2-s2.0-36949002704 Chemistry, Multidisciplinary Chemistry Article CARBON-DIOXIDE CYCLIC CARBONATES EFFICIENT CATALYSTS ETHYLENE CARBONATE IONIC LIQUIDS COMPLEXES OXIRANES HALIDE SYSTEM OXIDE ionic liquids zinc tetrahalide ethylene carbonate propylene carbonate polymer-supported