Supercritical CO2 as an Efficient Medium for Macromolecular Carbonate Synthesis through Ring-Opening Co- and Teroligomerization
ACS SUSTAINABLE CHEMISTRY & ENGINEERING(2023)
Abstract
The use of a supercritical CO2 medium allowsfor improved co- and teroligomerization of biobased epoxides affordingmacromolecular carbonates. Ring-openingpolymerization and teroligomerization processes thatinvolve two different epoxides and carbon dioxide are significantlymore efficiently executed in a supercritical CO2 medium.Here, we demonstrate that this generally considered green medium isadvantageous for the catalytic formation of both conventional andbiobased co- and teroligomers avoiding the occurrence of diffusion-limitedcatalysis while maximizing the polymer quality, yield, and carbonatecontent.
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Key words
Binary Catalysts,Homogeneous Catalysis,Oligocarbonates,ROCOP,Supercritical CO2
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