| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Delbreilh, Laurent
University of Rouen
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024Highlighting the interdependence between volumetric contribution of fragility and cooperativity for polymeric segmental relaxationcitations
- 2023Effect of physical and chemical ageing on barrier properties of epoxy coatingcitations
- 2023Effect of Chemical Composition on Molecular Mobility and Phase Coupling in Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) with Different Comonomer Contentscitations
- 2023Post‐curing and structural relaxation of epoxy networks during early stages of aging for civil engineering applicationscitations
- 2022Segmental Relaxation Dynamics in Amorphous Polylactide Exposed to UV Lightcitations
- 2022Macromolecular Mobility Changes Induced by Thermal Aging of Epoxy‐amine Polymer Networkscitations
- 2021Water-Induced Breaking of Interfacial Cohesiveness in a Poly(lactic acid)/Miscanthus Fibers Biocompositecitations
- 2019Determination of the equilibrium enthalpy of melting of two-phase semi-crystalline polymers by fast scanning calorimetrycitations
- 2019Polymer additive manufacturing of ABS structure: Influence of printing direction on mechanical propertiescitations
- 2019Cooperativity Scaling and Free Volume in Plasticized Polylactidecitations
- 2018Relaxation dynamics in plasticized polylactidecitations
- 2016Rock permittivity characterization and application of electromagnetic mixing models for density/compactness assessment of HMA by means of step‐frequency radarcitations
- 2016Molecular Relaxations in Supercooled Liquid and Glassy States of Amorphous Quinidine: Dielectric Spectroscopy and Density Functional Theory Approachescitations
- 2015Molecular mobility and physical ageing of plasticized poly(lactide)citations
- 2015Segmental mobility and glass transition of poly(ethylene-vinyl acetate) copolymers : Is there a continuum in the dynamic glass transitions from PVAc to PE?citations
- 2013Development of poly(isobutylene-co-isoprene)/reduced graphene oxide nanocomposites for barrier, dielectric and sensingapplicationscitations
- 2012Study of the cooperativity at the glass transition temperature in PC/PMMA multilayered films: Influence of thickness reduction from macro- to nanoscalecitations
- 2007Study of poly(bisphenol A carbonate) relaxation kinetics at the glass transition temperaturecitations
- 2005Effect of macromolecular orientation on the structural relaxation mechanisms of poly(ethylene terephthalate)citations
Places of action
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article
Highlighting the interdependence between volumetric contribution of fragility and cooperativity for polymeric segmental relaxation
Abstract
<jats:p>The blurring around the link between the isobaric fragility and the characteristic size of cooperative rearranging region for glass-forming liquids has been cleared up by considering volumetric and thermal contributions of the structural relaxation. The measurement of these contributions is carried out for three amorphous thermoplastic polymers using broadband dielectric spectroscopy under pressure, providing an understanding of the link between isobaric fragilities, glass transition temperatures, and microstructures. The cooperative rearranging region (CRR) volume is calculated as a function of pressure using the extended Donth’s approach, and the values are compared with the activation volume at the glass transition under different isobaric conditions. By combining these different results, a link between the chemical structure and the influence of pressure/temperature on the molecular mobility can be established. Furthermore, this study shows also a strong correlation between the activation volume, leading to the volumetric contribution of the isobaric fragility, and the CRR volume. Finally, this work highlights the influence of inter- and intra-molecular interactions on thermal and volumetric contributions of the isobaric fragility as a function of pressure.</jats:p>