Physical aging of a biodegradable alicyclic polymer: poly (pentamethylene trans-1,4-cyclohexanedicarboxylate)

•The physical aging of a biodegradable alicyclic polyester is investigated.•FSC analysis allows accelerating the physical aging process.•Different relaxation processes are evidenced, depending on the aging temperature. Physical aging of poly (pentamethylene trans-1,4-cyclohexanedicarboxylate) (PPeCE...

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Bibliographic Details
Published in:Journal of non-crystalline solids 2024-04, Vol.629, p.122874, Article 122874
Main Authors: Mejres, Marouane, Hallavant, Kylian, Guidotti, Giulia, Soccio, Michelina, Lotti, Nadia, Esposito, Antonella, Saiter-Fourcin, Allisson
Format: Article
Language:English
Subjects:
Chemical Sciences
Condensed Matter
DSC
Enthalpy of recovery
FSC
Materials Science
Physics
Polyesters
Polymers
Relaxation processes
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Summary:•The physical aging of a biodegradable alicyclic polyester is investigated.•FSC analysis allows accelerating the physical aging process.•Different relaxation processes are evidenced, depending on the aging temperature. Physical aging of poly (pentamethylene trans-1,4-cyclohexanedicarboxylate) (PPeCE), a biodegradable alicyclic polyester, was investigated using Fast Scanning Calorimetry (FSC), a recent calorimetric technique allowing to accelerate physical aging and study the associated relaxation processes at different aging temperatures in an experimentally-reasonable time scale. Different mechanisms were highlighted by varying the aging temperature on a temperature range of more than 60 °C. At aging temperatures well below the glass transition temperature, several relaxation mechanisms were evidenced, probably related to secondary relaxation processes (β relaxations). When the aging temperature approaches the glass transition temperature, the primary relaxation process (α relaxation) becomes predominant. [Display omitted]
ISSN:0022-3093
1873-4812
DOI:10.1016/j.jnoncrysol.2024.122874