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Academic literature on the topic 'Propriétés physico-chimiques – Polymères'
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Journal articles on the topic "Propriétés physico-chimiques – Polymères"
LEBRE, S., G. DAVID, C. NEGRELL, H. CARRERE, A. BATTIMELLI, E. RUIZ, L. VACHOUD, and C. WISNIEWSKI. "Optimisation de la séparation de phases de digestat par un coagulant-floculant biosource." Techniques Sciences Méthodes 4 (April 20, 2023): 21–31. http://dx.doi.org/10.36904/202304021.
Full textDissertations / Theses on the topic "Propriétés physico-chimiques – Polymères"
Rusa, Mihaiu Mariana. "Polymères éthyleneimines. Synthèse, propriétés, ap[p]lications." Montpellier 2, 2001. http://www.theses.fr/2001MON20148.
Full textChalal, Mohand. "Structure multi-échelle et propriétés physico-chimiques des gels de polymères thermosensibles." Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-00680076.
Full textBouillo, Nathalie. "Propriétés physico-chimiques à l'état pâteux ou filmogène de biopolymères contenant des additifs." Besançon, 2001. http://www.theses.fr/2001BESA2075.
Full textHammami, Nadia. "Synthèse et étude des propriétés physico-chimiques de polymères biosourcés à base d'isosorbide." Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTS127.
Full textThis research work aims to valorise isosorbide (IS) for biobased polymeric materials using original methods. After a short introduction of this molecule, we presented the different synthesis pathways and application fields of chemical and polymers already developed in scientific community. These compounds are classically obtained through many functionalization/synthesis steps with processes far away from green chemistry. Our first strategy based on the development of polyacetals derived from isosorbide (PAIS) was explained. A reaction scheme involving isosorbide with methylene halogenate in a non-toxic solvent (DMSO) was retained. The influence of different experimental parameters (stirring mode, reaction period and stoichiometry) was carefully analysed. Best results were achieved with high-speed mechanical stirring (more homogenous reactive solution, quantitative yield). The highest isosorbide concentrations led to the exclusive production of linear polyacetals (L-PAIS) whereas a low concentration under magnetic stirring conditions induced the formation of cyclic oligomers. Other macro-cycles (C-PAIS) with high molar weight were also produced. These different kinds of PAIS were characterised by various techniques (NMR, MALDI-TOF FTIR, SEC). Their physicochemical performances were also studied (TGA, DSC, rheology…) The length increase of polymer L-PAIS chains being challenged by cyclisation, we also explored lactide use (L- and racemic) as chain extender first by the reaction with IS then with L-PAIS. The La organometallic catalysis was more efficient than enzymatic pathway (PS lipase). Both chemical and physical analyses carried out with four polymeric grades derived from IS et lactide showed the added value of isosorbide molecule. Precise and reliable "structure-properties" relations including durability study were also led. Finally, similar approach could be applied for producing linear copolymers (PLLA-b-PAIS-b-PLLA and PRLA-b-PAIS-b-PRLA)
Benyahia, Lazhar. "Relations entre les propriétés rhéologiques et physico-chimiques des polymères et leurs propriétés adhésives : application à la peau." Université Joseph Fourier (Grenoble ; 1971-2015), 1996. http://www.theses.fr/1996GRE10061.
Full textPlatel, David. "Impact de l'architecture macromoléculaire des polymères sur les propriétés physico-chimiques des coulis de ciment." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2005. http://pastel.archives-ouvertes.fr/pastel-00001497.
Full textMokni, Marwa. "Optimisation et analyses des propriétés physico-chimiques et diélectriques du parylène D." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAY080/document.
Full textThis work is mainly focused on the elaboration and the characterization of parylene D thin films of few micrometers deposited by chemical vapor deposition (CVD). The goal of this study is to evaluate the potentialities of this polymer in order to replace the parylene N or C for specific applications or to integrate it in new applications. A first study consisted in evaluating the impact of the CVD process parameters (temperature of sublimation, temperature of pyrolysis, substrate temperature) on the surface morphology, the molecular structure and dielectric changes of parylene D. For that, we were based on several analyzes techniques as FTIR, XRD, DSC, TGA, AFM, SEM, DMA. Thermal stresses were applied to parylene D to evaluate their performance at high temperature (>200°C) and the changes on the crystal structure (size of crystallites, percentage of crystallinity,…) or the stability of the thermal properties (temperature of transition, temperature of crystallization, melting point) and dielectric properties (the dielectric permittivity, the dissipation factor, the electrical conductivity and the electric modulus). Dielectric and electrical properties of Parylene D were investigated by dielectric spectroscopy in a wide temperature ranges from -140°C to 350°C and frequency from 0.1 Hz to 1 MHz, respectively. (a, b and g)-relaxation mechanisms, interfacial polarization related to Maxwell-Wagner-Sillars and electrode polarization have been identified in this polymers. The dielectric performances of Parylene D have been also compared with parylenes N and C which are used in wide industrial applications. Optimized and controlled conditions of the CVD process of parylenes D are proposed in this work in relation to the properties. The obtained results open a new way for specific applications
Lampin, Marielle. "Influence des propriétés physico-chimiques de polymères implantables sur leur potentiel de migration et d'adhésion cellulaires." Compiègne, 1995. http://www.theses.fr/1995COMPD842.
Full textBouvet-Marchand, Agathe. "Syntheses, preparations and physico-chemical characterizations of functional hybrid thin layers." Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0338.
Full textTo face the technical challenges of our time, more and more performing materials are needed. However, neither plastic nor metals are sufficient to answer the different current problematic that require materials to be cheap, easily processable, industrializable with oustanding properties (electronic conductivity, transparency, self-cleaning, anti-corrosive etc.). These last years, the association plastic-metal or "hybrid" appears to be a promising route. Indeed, in these materials, not only properties of the plastic and metal are added but a synergy happens leading to unique properties. However, reaching this synergetic effect is not a straightforward task and an accurate control of the interaction between the two counterparts is crucial. During this Ph.D, thin hybrid films (from nanometer to micrometer) were prepared to answer various industrial and academic problematic. Materials dedicated to be used in fingerprint-sensor with very high resolution, to encapsulate biological media for electronic microscopy analysis, to collect an electrical signal or prevent water degradation on screens were elaborated. In order to answer the specific requirements of these different applications, particular molecules were designed to enable a good interaction with the inorganic components and their assembly was carefully adjusted to obtain the desired properties in the resulting material
Seyni, Abdoulaye. "Propriétés physico-chimiques et d'usage de matériaux composites à charge dégradable produits par co-broyage." Phd thesis, Toulouse, INPT, 2008. http://oatao.univ-toulouse.fr/7820/1/seyni.pdf.
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