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- W4205797576 endingPage "614" @default.
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- W4205797576 abstract "Designing polymeric materials for closed-loop material streams is the key to achieving a circular society. Here, a library of macrocyclic carbonates (MCs) was designed by a facile and direct one-pot, two-step synthesis approach without the use of a solvent at a 10 g scale. We demonstrate that anionic polymerization with tert-butoxide enables the ultrafast ring-opening polymerization (ROP) of MCs with high conversion (>97%) within seconds (3–10 s) at ambient temperature. The polymerization rate depends on the odd or even number of methylene groups between the carbonate linkages in the MCs, and not the overall ring size, yielding an “odd–even” effect. This polymerization rate is related to the difference in molecular conformation of the MCs, as determined by X-ray crystallography. The polymers (polypenta-, hexa-, heptamethylene carbonate) were subsequently regenerated back to their original MCs at a high selectivity (95–99 mol %) and good yields (70–85%), hence taking a step toward closing the loop on these long alkyl chain polycarbonates." @default.
- W4205797576 created "2022-01-25" @default.
- W4205797576 creator A5025633510 @default.
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- W4205797576 creator A5063124837 @default.
- W4205797576 creator A5063726894 @default.
- W4205797576 creator A5068438479 @default.
- W4205797576 date "2022-01-06" @default.
- W4205797576 modified "2023-10-14" @default.
- W4205797576 title "Simple Approach to Macrocyclic Carbonates with Fast Polymerization Rates and Their Polymer-to-Monomer Regeneration" @default.
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- W4205797576 doi "https://doi.org/10.1021/acs.macromol.1c02225" @default.
- W4205797576 hasPublicationYear "2022" @default.
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