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ethylene carbonate

dipropylene glycol

→

ethylene carbonate

수율 100.0%

carbon dioxide

수율 14.7%

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실험 절차

A 10:1 mole ratio of ethylene carbonate to dipropylene glycol is heated with stirring under a nitrogen atmosphere for 4 hours at 175° C. using 0.5 percent sodium stannate trihydrate as catalyst to give 100 percent ethylene carbonate conversion to a poly(alkylene carbonate) polyol with 14.7 percent carbon dioxide The catalyst is removed as in Example 1.

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