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利用席佛碱催化体系催化二氧化碳(CO2)和环氧氯丙烷(ECH)共聚反应,合成出新型环状碳酸酯(ECHCO2)。利用红外光谱、核磁等方法对产物进行了表征。结果表明,最优化的试验温度是60℃,这一催化剂体系催化的活性高达920 polymer/(mol Co h),并且有较高的选择性,高达99%。
A novel cyclic carbonate (ECHCO2) was synthesized by Schiff base catalysis catalyzed copolymerization of carbon dioxide (CO2) and epichlorohydrin (ECH). The products were characterized by IR, NMR and other methods. The results show that the optimum experimental temperature is 60 ℃. The catalytic activity of this catalyst system is as high as 920 polymer / (mol Co h) with a high selectivity of 99%.