| 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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Roland, Sébastien
Processes and Engineering in Mechanics and Materials
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2023Improvement of the self‐assembly of low χ ABA triblock copolymers with the addition of an ionic liquid
- 2023Improvement of the self‐assembly of low χ ABA triblock copolymers with the addition of an ionic liquid
- 2022Improvement of the self‐assembly of low χ ABA triblock copolymers with the addition of an ionic liquid
- 2021Dual transient networks of polymer and micellar chains: structure and viscoelastic synergy ; Doubles réseaux transitoires de polymères et de micelles: structure et synergie viscoélastiquecitations
- 2021Dual Transient Networks of Polymer and Micellar Chains: Structure and Viscoelastic Synergycitations
- 2021Quantitative Structural Study of Cold-Crystallized PEKKcitations
- 2021Towards a Kinetic Modeling of the Changes in the Electrical Properties of Cable Insulation during Radio-Thermal Ageing in Nuclear Power Plants. Application to Silane-Crosslinked Polyethylenecitations
- 2020Physico-chemical characterization of the blooming of Irganox 1076® antioxidant onto the surface of a silane-crosslinked polyethylenecitations
- 2019Numerical study of the relationship between the spherulitic microstructure and isothermal crystallization kinetics. Part I. 2-Dcitations
- 2016Beware of the Flory parameter to characterize polymer-polymer interactions: A critical reexamination of the experimental literaturecitations
- 2016Evaluation of morphological representative sample sizes for nanolayered polymer blendscitations
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document
Numerical study of the relationship between the spherulitic microstructure and isothermal crystallization kinetics. Part I. 2-D
Abstract
International audience ; In this paper, we proposed a numerical model to study the kinetic properties and the spherulite microstructure of a semi-crystalline polymer under isothermal crystallization, which further exhibits the potential in generating the 2D spherulitic structure according to the observations obtained by experimental techniques. Two characteristic parameters are introduced, namely, characteristic length Lc and characteristic time tc, which are dependent on the growth rate, G and the nucleation rate, I. In addition, two non-dimensional parameters are introduced to model the nucleation saturation: Ld/Lc and t⋆/tc, which is related to the thickness of nucleation exclusion zone Ld, and the effective nucleation time t⋆, respectively. In 2D modeling, the kinetics are confirmed by Avrami fitting, and the effects of the four characteristic parameters on the Avrami parameter n and the crystallization half-time t0.5 are presented. The regularity of how the spherulite density or the mean radius of spherulites R change along with these parameters are also given, respectively. It shows that Lc is the prominent parameter for the size of the spherulite, and tc controls t0.5 as long as there is no nucleation saturation (Ld=0 and t⋆→∞). Besides, the existence of the nucleation saturation increases the mean radius of spherulites, but decreases n from 3 to 2 in 2-D modeling. Finally, a relationship between crystallization kinetics and microstructures is provided, giving a new perspective to estimate the nucleation rate.