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Differential scanning calorimetry for quantification of polymer biodegradability in compost

  • The objective of this study is the establishment of a differential scanning calorimetry (DSC) based method for online analysis of the biodegradation of polymers in complex environments. Structural changes during biodegradation, such as an increase in brittleness or crystallinity, can be detected by carefully observing characteristic changes in DSC profiles. Until now, DSC profiles have not been used to draw quantitative conclusions about biodegradation. A new method is presented for quantifying the biodegradation using DSC data, whereby the results were validated using two reference methods. The proposed method is applied to evaluate the biodegradation of three polymeric biomaterials: polyhydroxybutyrate (PHB), cellulose acetate (CA) and Organosolv lignin. The method is suitable for the precise quantification of the biodegradability of PHB. For CA and lignin, conclusions regarding their biodegradation can be drawn with lower resolutions. The proposed method is also able to quantify the biodegradation of blends or composite materials, which differentiates it from commonly used degradation detection methods.

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Metadaten
Author:Charlotte Capitain, Jesse Ross-Jones, Sophie Möhring, Nils TippkötterORCiD
DOI:https://doi.org/10.1016/j.ibiod.2020.104914
ISSN:0964-8305
Parent Title (English):International Biodeterioration & Biodegradation
Publisher:Elsevier
Place of publication:Amsterdam
Document Type:Article
Language:English
Year of Completion:2020
Date of the Publication (Server):2020/03/09
Volume:149
First Page:In Press, Article number 104914
Link:https://doi.org/10.1016/j.ibiod.2020.104914
Zugriffsart:bezahl
Institutes:FH Aachen / Fachbereich Chemie und Biotechnologie
collections:Verlag / Elsevier