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Issue 3, 2019
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Metal-free synthesis of poly(trimethylene carbonate) by efficient valorization of carbon dioxide

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Abstract

The desire for sustainability drives interest in the production of chemicals from carbon dioxide. The synthesis of poly(trimethylene carbonate), PTMC, by copolymerization of carbon dioxide and oxetane using organocatalysis affords a green route to this important polymer but has proven to be a very challenging process. Herein we report that the application of iodine, in combination with organic superbases provides a highly active system for the direct synthesis of PTMC from CO2 with very high levels of carbonate linkage (95% in selectivity). Mechanistic studies reveal the in situ formation of trimethylene carbonate which eventually polymerizes through an active chain-end process from an I2-oxetane adduct.

Graphical abstract: Metal-free synthesis of poly(trimethylene carbonate) by efficient valorization of carbon dioxide

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Publication details

The article was received on 18 Nov 2018, accepted on 02 Jan 2019 and first published on 03 Jan 2019


Article type: Communication
DOI: 10.1039/C8GC03607A
Citation: Green Chem., 2019,21, 472-477

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    Metal-free synthesis of poly(trimethylene carbonate) by efficient valorization of carbon dioxide

    J. Huang, J. De Winter, A. P. Dove and O. Coulembier, Green Chem., 2019, 21, 472
    DOI: 10.1039/C8GC03607A

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