Effect of Ultrasound on Molecular Structure Development of Polylactide

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Publication date
2014
Author
Bao, W.
Wu, H.
Guo, S.
Paradkar, Anant R cc
Kelly, Adrian L.
Brown, Elaine cc
Coates, Philip D.
Keyword
Degradation
Molecular structure
Polylactide
Ultrasound
Combination
Rights
© 2014 Taylor and Francis. Full-text reproduced in accordance with the publisher's self-archiving policy. This is an Author's Original Manuscript of an article published by Taylor & Francis in Polymer-Plastics Technology and Engineering on 20 May 2014. It is available online at http://dx.doi.org/10.1080/03602559.2014.886062.
Peer-Reviewed
Yes
Open Access status
openAccess
Accepted for publication
2014

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Abstract
In this work, effect of ultrasound on molecular structure development of Polylactide (PLA) was studied. It was found that the intrinsic viscosity of PLA decreased with increasing treating time, temperature and ultrasound time. Different from traditional thermal degradation of PLA, the degradation of PLA under ultrasound treatment showed that chain scission and chain combination of PLA competed with each other in the degradation process, which could be divided into two steps. The mechanism of ultrasound degradation of PLA was proposed. Furthermore, Thermal properties were characterized by DSC to show heat and ultrasound effects on molecular structure development of PLA.
URI
http://hdl.handle.net/10454/8027
Version
Accepted manuscript
Citation
Bao W, Wu H, Guo S et al (2014) Effect of Ultrasound on Molecular Structure Development of Polylactide. Polymer-Plastics Technology and Engineering. 53(9): 927-934.
Link to Version of Record
https://doi.org/10.1080/03602559.2014.886062
Type
Article
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