Loading...
Randomly methylated β-cyclodextrin as a modifier in PBAT/PLA-based films: Stability and crystallinity evaluation
Duale, Khadar Sikorska, Wanda Musioł, Marta Janeczek, Henryk Godzierz, Marcin Marcinkowski, Andrzej Kowalczuk, Marek Gupta, Abhishek Peptu, Cristian
Duale, Khadar
Sikorska, Wanda
Musioł, Marta
Janeczek, Henryk
Godzierz, Marcin
Marcinkowski, Andrzej
Kowalczuk, Marek
Gupta, Abhishek
Peptu, Cristian
Editors
Other contributors
Epub Date
Issue Date
2025-05-07
Submitted date
Alternative
Abstract
The poly(butylene adipate-co-butylene terephthalate)/polylactide (PBAT/PLA) have attracted a great deal of attention in recent years due to their excellent (bio)degradability. In this study, the PBAT/PLA-based films with and without randomly methylated β-cyclodextrin (RM-β-CD) were prepared using solvent-casting and pressing techniques to evaluate the physiochemical and degradation properties of the obtained films. The characterisation of PBAT/PLA-based films was conducted by using microscopes (optical and AFM), GPC, DSC, and XRD measurements. In addition, degradation tests in water at 37 and 70 °C were conducted under abiotic conditions for 70 days. The research revealed that the addition of RM-β-CD resulted in shifts in the glass transition temperature and greater ordering of PBAT/PLA-based films as well as a slight decrease in cytocompatibility. However, antimicrobial activity and cytotoxicity studies performed did not reveal any risks for their possible applications. Analysis of the degradation progress showed that at 37°C a slight molar mass loss for solvent-cast films and a slightly higher loss for solvent-cast films with RM-β-CD were noticed. No changes were observed in the more ordered pressed films. Hydrolytic degradation of all PBAT/PLA-based films during incubation at 70°C resulted in a continuous decrease in the molar mass. Solvent-cast films are characterised by poor miscibility and phase separation, resulting in high roughness. However, the higher temperature during degradation and generally the addition of RM-β-CD to the polymer matrix improved their miscibility.
Citation
Duale, K, Sikorska, W, Musiol, M, Janeczek, H, et al (2025) Randomly methylated β-cyclodextrin as a modifier in PBAT/PLA-based films: Stability and crystallinity evaluation, Polymer Degradation and Stability, 239 (September 2025), Article no. 111399
Publisher
Research Unit
PubMed ID
PubMed Central ID
Embedded videos
Additional Links
Type
Journal article
Language
en
Description
This is an accepted manuscript of an article published by Elsevier in Polymer Degradation and Stability on 07/05/2025, available online: https://doi.org/10.1016/j.polymdegradstab.2025.111399
The accepted version of the publication may differ from the final published version.
Series/Report no.
ISSN
0141-3910
EISSN
ISBN
ISMN
Gov't Doc #
Sponsors
This work was supported by the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 872152, project GREEN-MAP, an international project co-financed by the program of the Minister of Science and Higher Education entitled “PMW” in the years 2020–2024; contract No. 5092/H2020/2020/2, and Joint Polish-Romanian project under the agreement on scientific cooperation between the Polish Academy of Sciences and Romanian Academy of Sciences, “Design of cyclodextrin-polyester-amides for special applications”.