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Issue 3, 2016
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An aromatic/aliphatic polyester prepared via ring-opening polymerisation and its remarkably selective and cyclable depolymerisation to monomer

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Abstract

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-β-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.

Graphical abstract: An aromatic/aliphatic polyester prepared via ring-opening polymerisation and its remarkably selective and cyclable depolymerisation to monomer

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Supplementary files

Article information


Submitted
06 Oct 2015
Accepted
11 Nov 2015
First published
12 Nov 2015

This article is Open Access

Polym. Chem., 2016,7, 553-559
Article type
Paper
Author version available

An aromatic/aliphatic polyester prepared via ring-opening polymerisation and its remarkably selective and cyclable depolymerisation to monomer

J. P. MacDonald and M. P. Shaver, Polym. Chem., 2016, 7, 553
DOI: 10.1039/C5PY01606A

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