| 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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Renault, Jean-Philippe
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2023Structuration and deformation of colloidal hydrogelscitations
- 2022Effect of sodium nitrate on radiolytic gas production of Portland based materials containing blast furnace slag
- 2020Combining surface chemistry modification and in situ small-angle scattering characterization to understand and optimize the biological behavior of nanomedicinescitations
- 2020Behaviour of magnesium phosphate cement-based materials under gamma and alpha irradiationcitations
- 2017In situ and time-resolved infrared detection of the reactivity induced by electrons in polymer filmscitations
- 2017In situ and time-resolved infrared detection of the reactivity induced by electrons in polymer filmscitations
- 2017Hybrid metal-polymer nanoparticles as promising radiosensitizers for cancer treatment
- 2016Effect of low dose electron beam irradiation on the alteration layer formed during nuclear glass leachingcitations
Places of action
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article
In situ and time-resolved infrared detection of the reactivity induced by electrons in polymer films
Abstract
The real time and in situ analysis of chemical reactions such as polymerization reactions, polymer degradation, and oxidation of polymers is of utmost importance. Surprisingly, only few experimental tools allowing this are available. To bridge this gap, we have developed a new experimental setup coupling a 60 keV electron gun with an infrared spectrometer operating in the mid-IR region (800-4000 cm 1) and associated with the rapid scan mode. The measurements are performed using the infrared reflection absorption spectroscopy approach. We worked here with 0.5–25 ms pulses for which the dose per pulse ranges from 4 to 200 kGy. Combining pulse electrons with rapid scan analysis enables performing experiments with a time resolution of 80 ms (and above). Therefore, this new platform can, for instance, give direct insights into reaction mechanisms at stake during the degradation of polymers. First results on a bisphenol A polycarbonate irradiated under vacuum enabling the validation of this new setup and also the recording of time-resolved spectra are presented. Reaction mechanisms are then proposed.