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Habilitation à diriger des recherches

Facettage des phases cubiques lyotropes. Elastomères étudiés par RMN. Transition vitreuse dans les polymères en volume et en films minces. Fluage dans un système élastique désordonné

Abstract : My research activity has been devoted to the physical properties of crosslinked polymers, confined polymer chains (block copolymers), reinforced elastomers. I have been primarily using an NMR approach to measure the elastic energy stored at the scale of polymer chains, using NMR concepts which I strongly contributed to develop. On the other hand, I have developed Monte Carlo numerical simulations to correlate the NMR behaviour to chain statistical properties in elastomers and other confined polymer systems. I also worked on various aspects of the physis of liquid crystals: the relationship between structure and molecular dynamics, directional growth, phase transitions, faceting of cubic phases. I was the first author to observe and interpret 3D faceting in lyotropic cubic giant monocrystals. I actually take a prominent part in the projects and development of the polymer group in Laboratoire de Physique des Solides. Within this context, I am developing a research activity devoted to glass transition in polymers in the bulk and in thin films and to the physical properties of reinforced elastomers : non linear effects, plasticity, fatigue. I am developing both experimental (NMR, mechanical measurements, small angle scattering) and numerical (percolation in 2D systems in relation to glass transition in thin films, simulations of reinforced elastomers by dissipative particle dynamics) activities. My projects are on the ultimate properties of nanostructured polymer systems, both in the experimental and numerical sides.
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Habilitation à diriger des recherches
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https://tel.archives-ouvertes.fr/tel-00009614
Contributor : Paul Sotta <>
Submitted on : Tuesday, June 28, 2005 - 6:29:50 PM
Last modification on : Monday, November 23, 2020 - 3:22:04 PM
Long-term archiving on: : Friday, November 25, 2016 - 9:17:19 AM

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Paul Sotta. Facettage des phases cubiques lyotropes. Elastomères étudiés par RMN. Transition vitreuse dans les polymères en volume et en films minces. Fluage dans un système élastique désordonné. Analyse de données, Statistiques et Probabilités [physics.data-an]. Université Paris Sud - Paris XI, 2005. ⟨tel-00009614⟩

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