| 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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Bas, Corine
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (4/4 displayed)
- 2024Evaluation of membranes chemical degradation induced by fuel cell accelerated test conditions
- 2014A review of PEM fuel cell durability: materials degradation, local heterogeneities of aging and possible mitigation strategiescitations
- 2014A review of PEM fuel cell durability: materials degradation, local heterogeneities of aging and possible mitigation strategiescitations
- 2009Identification of microstructural probes related to the specific properties of amorphous polymers : from the dynamic mechanical spectrometry to the positron annihilation spectroscopy.
Places of action
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thesis
Identification of microstructural probes related to the specific properties of amorphous polymers : from the dynamic mechanical spectrometry to the positron annihilation spectroscopy.
Abstract
My research interests are focused on the identification of microstructural probes governing the functional properties (mechanical, permeability...) of amorphous polymers. The microstructure of aromatic polyimides is described on different scales through density measurement, wide-angle X-ray scattering (WAXS), UV-Visible spectrophotometry, dynamic mechanical thermal analysis (DMTA) and positronium annihilation lifetime spectroscopy (PALS). Thus, from these experiments, there are only three extracted probes i.e. temperature of the gamma relaxation, the colour index and the radius of the spherical free volume holes which displays strong relationships with gas transport properties. My research project deals with the interest of the positron annihilation spectroscopy technique installed in our lab in the study of other polymer properties. One application of the research background is to define microstructural probes for understanding the degradation of a perfluorinated sulfonic acid membrane used as a polyelectrolyte in a fuel cell.