Switchable Catalysis Improves the Properties of CO2-Derived Polymers: Poly(cyclohexene carbonate-b-ε-decalactone-b-cyclohexene carbonate) Adhesives, Elastomers, and Toughened Plastics

20 February 2020

Journal of the American Chemical Society

Gregory S. Sulley, Georgina L. Gregory, Thomas T. D. Chen, Leticia Peña Carrodeguas, Gemma Trott, Alba Santmarti, Koon-Yang Lee, Nicholas J. Terrill, Charlotte K. Williams https://doi.org/10.1021/jacs.9b13106

View Journal Article / Working Paper

Carbon dioxide/epoxide copolymerization is an efficient way to add value to waste CO2 and to reduce pollution in polymer manufacturing. Using this process to make low molar mass polycarbonate polyols is a commercially relevant route to new thermosets and polyurethanes. In contrast, high molar mass polycarbonates, produced from CO2, generally under-deliver in terms of properties, and one of the most widely investigated, poly(cyclohexene carbonate), is limited by its low elongation at break and high brittleness. Here, a new catalytic polymerization process is reported that selectively and efficiently yields degradable ABA-block polymers.