Polymer-supported Zinc Tetrahalide Catalysts for the Coupling Reactions of CO2 and Epoxides 


Vol. 28,  No. 11, pp. 2025-2028, Nov.  2007
10.5012/bkcs.2007.28.11.2025


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  Abstract

Homogeneous zinc tetrahalide complexes, highly active catalysts for the coupling reactions of alkylene oxide and C2 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 oC. 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.

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  Cite this article

[IEEE Style]

B. Lee, N. H. Ko, B. S. Ahn, M. Cheong, H. S. Kim, J. S. Lee, "Polymer-supported Zinc Tetrahalide Catalysts for the Coupling Reactions of CO2 and Epoxides," Bulletin of the Korean Chemical Society, vol. 28, no. 11, pp. 2025-2028, 2007. DOI: 10.5012/bkcs.2007.28.11.2025.

[ACM Style]

Bora Lee, Nan Hee Ko, Byoung Sung Ahn, Minserk Cheong, Hoon Sik Kim, and Je Seung Lee. 2007. Polymer-supported Zinc Tetrahalide Catalysts for the Coupling Reactions of CO2 and Epoxides. Bulletin of the Korean Chemical Society, 28, 11, (2007), 2025-2028. DOI: 10.5012/bkcs.2007.28.11.2025.

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ISSN(Print) 0253-2964
ISSN(Online) 1229-5949