Waste not, want not: CO2 (re)cycling into block polymers

A new way to combine two different polymerisation reactions, using a single catalyst, results in efficient block polymer synthesis. The selective polymerisation of mixtures of l-lactide-O-carboxyanhydride and cyclohexene oxide, using a di-zinc catalyst in a one-pot procedure, allows the preparation...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2019, Vol.55 (51), p.7315-7318
Main Authors: Raman, Sumesh K, Raja, Robert, Arnold, Polly L, Davidson, Matthew G, Williams, Charlotte K
Format: Article
Language:English
Subjects:
Carbon dioxide
Catalysis
Catalysts
Chemical synthesis
Cyclohexene
Polymerization
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Summary:A new way to combine two different polymerisation reactions, using a single catalyst, results in efficient block polymer synthesis. The selective polymerisation of mixtures of l-lactide-O-carboxyanhydride and cyclohexene oxide, using a di-zinc catalyst in a one-pot procedure, allows the preparation of poly(l-lactide-b-cyclohexene carbonate). The catalysis near quantitatively recycles the carbon dioxide released during polyester formation into the subsequent polycarbonate block, with an atom economy of up to of 91%.
ISSN:1359-7345
1364-548X
DOI:10.1039/c9cc02459j