Abstract
The modified organic-inorganic hybrid zirconium phosphonate materials were used to catalyze the addition reaction of propylene epoxide with carbon dioxide. The catalytic materials of different carbon chains were investigated. The optimal catalytic materials were screened out. At the same time, the reaction time, pressure, temperature and the optimum amount of catalytic materials were also studied. The results show that the catalytic material 1c modified by Salen Mn(III) has good catalytic performance for the carbon dioxide addition reaction, the yield of propylene carbonate are over 90%. In addition, the modified catalytic material 1c is easily separated from the reaction system, and can be recycled at least 5 times, and the catalytic activity is not significantly reduced.
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