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Theses

Élaboration de nanocomposites "nanoparticules métalliques / polymère" en milieux fluides supercritiques

Abstract : Structuring composite materials, at least for one phase, at the nanometer scale, that is to say synthesize nanocomposite materials, is an interesting way to optimize their properties. The field of propulsion and propellants follows this rule. This is the context of this PhD dealing with the synthesis of nanocomposites constituted of metallic nanoparticles and polymer in supercritical fluids. The main steps for the formation of nanocomposites in scCO2 have been studied: i) Thermodynamical study of polymer/scCO2 systems, ii) Viscosity measurements of polymer/scCO2 systems and iii) Synthesis of inorganic nanoparticles in polymers in supercritical fluids. Moreover, an important part of this work has concerned the synthesis of aluminum nanoparticles in supercritical fluids in order to incorporate them in polymer matrixes for applications to propellants.
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Pauline Vitoux. Élaboration de nanocomposites "nanoparticules métalliques / polymère" en milieux fluides supercritiques. Matériaux. Université Sciences et Technologies - Bordeaux I, 2008. Français. ⟨NNT : 2008BOR13725⟩. ⟨tel-00627637⟩

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