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Issue 22, 2017
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Thermal, structural and degradation properties of an aromatic–aliphatic polyester built through ring-opening polymerisation

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Abstract

The novel biodegradable aromatic–aliphatic polyester, poly(2-(2-hydroxyethoxy)benzoate), was explored through thermal analysis, X-ray diffraction, dynamic mechanical analysis and comparative bio and catalysed degradation. The polyester is a product of ring opening polymerisation (ROP) of 2,3-dihydro-5H-1,4-benzodioxepin-5-one catalysed by an aluminium salen catalyst. Thermal and mechanical characterisation showed that the polyester had a Tg of nearly 27 °C and crystallisation ability when cooled from melt, providing insight into potential biomedical and compatibiliser applications. These thermal and mechanical properties can be tuned by altering the polymer's molecular weight. The crystal structure has also been determined through wide-angle X-ray diffraction (WAXD). The polymer can be enzymatically degraded, but this process is slow compared to the rapid degradation by exploiting the monomer–polymer equilibrium catalysed by the aforementioned aluminium salen complex.

Graphical abstract: Thermal, structural and degradation properties of an aromatic–aliphatic polyester built through ring-opening polymerisation

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Supplementary files

Article information


Submitted
25 Apr 2017
Accepted
14 May 2017
First published
15 May 2017

Polym. Chem., 2017,8, 3530-3538
Article type
Paper

Thermal, structural and degradation properties of an aromatic–aliphatic polyester built through ring-opening polymerisation

E. Lizundia, V. A. Makwana, A. Larrañaga, J. L. Vilas and M. P. Shaver, Polym. Chem., 2017, 8, 3530
DOI: 10.1039/C7PY00695K

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