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The chemical fixation of carbon dioxide has become an important research topic because of the danger posed by global warming, and conversion of carbon dioxide into valuable substances is an extremely attractive solution. The reaction of CO2 with oxiranes leading to 5-membered cyclic carbonates is well known1), and these product carbonates can be used as polar aprotic solvents, electrolytes for batteries, and sources of reactive polymers2). Research on oxiraneCO2 reactions has focused on the reaction mechanism, the overall reaction kinetics, and the effect of the catalyst on the conversion3)~5). Diffusion may affect the reaction kinetics6) in the mass transfer associated with the chemical reactions, so this effect on the reaction kinetics of the gas-liquid heterogeneous reaction between CO2 and oxirane is important to investigate. Various functionalized catalysts such as polymers, amorphous, and fumed silica have mild activity due to the low accessibility caused by the low/non porosity. However, the discovery of the M41S family7) generated a great deal of interest in the synthesis of organically functionalized, mesoporous materials for application in the fields of catalysis, sensing, and adsorption, based on their high surface areas and large ordered pores ranging from 20 to 100 Å8) with narrow size distributions. Their high chemical and thermal stabilities are also promising for the reactions of bulky substrate molecules. In general, hybrid organic-inorganic materials have been prepared via post-grafting or co-condensation techniques. In 2000, a grafting technique was developed through a co-condensation method for hybrid MCM-41 using halogenated organosilanes9). Recently, a new synthetic approach has been developed for the preparation of hybrid inorganic-organic mesoporous materials based on the co-condensation of siloxane and organosiloxane precursors in the presence of different templating surfactant solutions10). Also, a new grafting technique was described for the synthesis of hybrid MCM-41 and trialkylamine-immobilized ionic liquids containing high catalytic activity for the synthesis of cyclic carbonates11). The kinetics of the reaction between CO2 and oxiranes, such as phenyl glycidyl ether (PGE) and glycidyl methacrylate, have been studied using catalysts such as 160 Journal of the Japan Petroleum Institute, 53, (3), 160-166 (2010)

Reaction Kinetics of Carbon Dioxide with Phenyl Glycidyl Ether by TEA-CP-MS41 Catalyst