Journal
POLYMER CHEMISTRY
Volume 7, Issue 3, Pages 553-559Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5py01606a
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Funding
- University of Edinburgh
- Marie-Curie Actions Programme [FP7-PEOPLE-2013-CIG-618372]
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The ring-opening polymerisation of 2,3-dihydro-5H-1,4-benzodioxepin-5-one (2,3-DHB) with aluminium salen or organocatalysts gives polyester homopolymers and copolymers with L-lactide or rac-beta-butyrolactone that contain both aromatic and aliphatic linkages, the first polymers with an aromatic ring in the backbone prepared by this key method. The same Al salen catalyst catalyses a remarkably selective depolymerisation to monomer under modified reaction conditions. The process may be cycled to repeatedly recycle polymer to monomer and maintain the polymer's low dispersity.
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