writer：2. Binyuan Liu, Xiaojiang Zhao, Xianhong Wang*, Fosong Wang
keywords：CO2, PO
source：期刊
specific source：Polymer 44 (2003) 1803–1808
Issue time：2003年

The copolymerizations of carbon dioxide (CO2) and propylene oxide (PO) were performed using new ternary rare-earth catalyst. It was
found that the rare-earth coordination catalyst consisting of Nd(CCl3COO)3, ZnEt2 and glycerine was very effective for the copolymerization
of PO with CO2. The effects of the relative molar ratio and addition order of the catalyst components, copolymerization reaction time, and
operating pressure as well as temperature on the copolymerization were systematically investigated. At an appropriate combination of all
variables, the yield could be as high as 6875 g/mol Nd per hour at 90 8C in a 8 h reaction period.