skip to main content
Language:
Search Limited to: Search Limited to: Resource type Show Results with: Show Results with: Search type Index

Simple Approach to Macrocyclic Carbonates with Fast Polymerization Rates and Their Polymer-to-Monomer Regeneration

Macromolecules, 2022-01, Vol.55 (2), p.608 [Peer Reviewed Journal]

ISSN: 1520-5835 ;ISSN: 0024-9297 ;EISSN: 1520-5835 ;DOI: 10.1021/acs.macromol.1c02225

Digital Resources/Online E-Resources

Citations Cited by
  • Title:
    Simple Approach to Macrocyclic Carbonates with Fast Polymerization Rates and Their Polymer-to-Monomer Regeneration
  • Author: Huang, Jin ; Olsen, Peter ; Grape, Erik Svensson ; Inge, A. Ken ; Odelius, Karin
  • Is Part Of: Macromolecules, 2022-01, Vol.55 (2), p.608
  • Description: 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.
  • Language: English
  • Identifier: ISSN: 1520-5835
    ISSN: 0024-9297
    EISSN: 1520-5835
    DOI: 10.1021/acs.macromol.1c02225
  • Source: SWEPUB Freely available online
Back to results list
INSPIRE LIBRARY - TON DUC THANG UNIVERSITY (84-028) 37 755 057 Feedback
19 Nguyen Huu Tho St. Dist.7, HCM thuvien@tdtu.edu.vn

Copyright © 2017 INSPIRE LIBRARY - TON DUC THANG UNIVERSITY

Searching Remote Databases, Please Wait