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A simplified theory of crystallisation induced by polymer chain scissions for biodegradable polyesters

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posted on 02.10.2017 by Andy Gleadall, Jingzhe Pan, Helen Atkinson
A simplified theory for the crystallisation of biodegradable polyesters induced by polymer chain scissions during biodegradation is presented following a theory developed by Han and Pan. The original theory is greatly simplified so that it becomes very straightforward to use and the number of material parameters is significantly reduced. Furthermore it is demonstrated that the spherulite structure widely observed in polymers can be taken into account using the theory. The simplified theory is fitted to the experimental data of poly-l-lactic acids (PLLAs) obtained from literature. It is shown that the simplified theory is equally able to fit the data as the original one. It is also shown that the theory can fit degradation data for PLLAs of different initial degrees of crystallinity with spherulite structures.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

Polymer Degradation and Stability

Volume

97

Issue

9

Pages

1616 - 1620

Citation

GLEADALL, A., PAN, J. and ATKINSON, H., 2012. A simplified theory of crystallisation induced by polymer chain scissions for biodegradable polyesters. Polymer Degradation and Stability, 97 (9), pp.1616-1620.

Publisher

© Elsevier

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution 3.0 Unported (CC BY 3.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/

Publication date

2012

Notes

Andrew Gleadall acknowledges an EPSRC PhD studentship.

ISSN

0141-3910

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