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The Effect of Construction and Demolition Waste Plastic Fractions on Wood-Polymer Composite Properties
Published on: June 7, 2020
Waste not, want not: CO2 (re)cycling into block polymers
Sumesh K Raman1, Robert Raja, Polly L Arnold
1Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA, Oxford, UK. charlotte.williams@chem.ox.ac.uk.
Abstract:
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%.
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