ORCID

Abstract

A well-established model for simulation of the chain-scission process of polylacticacid (PLA) during thermal processing has been simplified and revised. The key assumption in the new model is that the total number of monomer units is invariant as reactions progress. Surprisingly, this seemingly obvious assumption appears to have been previously overlooked. The revised model no longer requires solution of simultaneous differential equations and, for isothermal conditions, an analytical solution is readily available. The present model is in excellent agreement with the more complex model and experimental results for PLA degradation reported in the literature. This simplified model has potential to be applied to other thermoplastics.

DOI

10.1016/j.polymdegradstab.2016.09.033

Publication Date

2016-12-01

Publication Title

Polymer Degradation and Stability

Volume

134

ISSN

0141-3910

Embargo Period

2017-09-28

Organisational Unit

School of Engineering, Computing and Mathematics

Keywords

Modelling, Thermal degradation, Polymeric material, Chain-scission, PLA

First Page

19

Last Page

21

Share

COinS