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Academic literature on the topic 'Résines époxydes – Synthèse (chimie)'
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Journal articles on the topic "Résines époxydes – Synthèse (chimie)"
Boutevin, B., J. J. Robin, and C. Roume. "Synthèse de résines époxydes tétrafonctionnelles par l'intermediaire de diamines et de l'épichlorhydrine." European Polymer Journal 31, no. 4 (April 1995): 313–20. http://dx.doi.org/10.1016/0014-3057(94)00175-8.
Full textDissertations / Theses on the topic "Résines époxydes – Synthèse (chimie)"
Richard, Tiphaine. "Lignin etherification : a clean and efficient pathway to biobased epoxy resins." Electronic Thesis or Diss., Université de Lille (2022-....), 2023. http://www.theses.fr/2023ULILR051.
Full textThis manuscript presents new ways of synthesising lignin-based epoxy resins by homogeneous catalysis without bisphenol A or epichlorohydrin. Thus, this thesis relates several etherification processes of technical lignins with the purpose to graft unsaturation(s) prior to oxidation. Ruthenium-catalysed allylation of phenols was first studied and led to the efficient modification of lignin's aliphatic hydroxyl groups. Then, the use of a “linker”, which can be modified to bear the unsaturations and then grafted onto lignin, was studied. Nickel-catalysed butadiene-hydroalkoxylation and telomerisation on glycerol carbonate linkers were performed in high yields. The scale-up of the obtained modified lignin was studied using palladium-catalysed telomerisation and led to the development of cyclic carbonate decarboxylation to simplify the following lignin purification steps. Finally, the unsaturations of the modified lignin were epoxidised, leading to the preparation of a lignin-based epoxy-resin. A large range of analytical methods were used throughout the thesis to characterise lignins, such as NMR and FT-IR spectroscopy as well as thermal properties with DSC and TGA
Guyot, Bernard. "Synthèses d'acrylates fluorés alpha-modifiés, polymérisations et applications." Montpellier 2, 1995. http://www.theses.fr/1995MON20091.
Full textTitier, Christelle. "Synthèse par extrusion réactive et caracterisation de prepolymères epoxy-amine multiméthacryliques." Lyon, INSA, 1994. http://www.theses.fr/1994ISAL0031.
Full textThe aim of this study is the synthesis of epoxy-amine multimethacrylic prepolymer by reactive extrusion. By epoxy-amine polycondensation, the GMA/DGEBA/diamine ( 6/1/2) reactive system leads to the one-step formation of prepolymers which terminal double bonds can further react to form a three-dimensional network. The first part presents the study of the system in batch and the choice of efficient amines and catalysts with a view to synthesis in the extruder. From the numerous epoxy-amine kinetic studies and mechanisms proposed in the literature, the reaction of prepolymer formation can be simulated with model systems. In the second part, after a bibliographic study concerning reactive extrusion and parameters which are important for processing, prepolymers have been synthesized using a corotating twin-screw extruder at several temperatures and with different screw configurations. Residence time distributions, measured using biphenyl as tracer, allowed to see the influence of temperature and screw configuration on the mean residence time and on the prepolymer conversion at the exit. Experiments have also be done with modified systems, with other amines and elastomers for example. Networks obtained from extruded prepolymers were characterized by dynamic mechanical analysis and compared in the third part
Bonzon, Valérie. "Valorisation chimique des hémicelluloses : synthése de polyols furaniques, séparation du L-arabinose, obtention de résines époxydes." Toulouse, INPT, 1993. http://www.theses.fr/1993INPT015G.
Full textBougherara, Chaabane. "Synthèse d'oligomères téléchéliques par modification chimique : application aux résines époxydes et à leurs durcisseurs." Montpellier 2, 1988. http://www.theses.fr/1988MON20194.
Full textBreton, Yannick. "Synthèse et fonctionnalisation de nanotubes de carbone multiparois : propriétés mécaniques de composites nanotubes-résine époxyde." Orléans, 2002. http://www.theses.fr/2002ORLE2033.
Full textSilinski, Brigitte. "Polymérisation sous micro-ondes de résines époxydes et polyuréthannes : application à la synthèse de réseaux interpénétrés." Toulouse, INPT, 1990. http://www.theses.fr/1990INPT046G.
Full textDirand, Xavier. "Etude des interfaces et interphases verre/résine vinylester." Mulhouse, 1994. http://www.theses.fr/1994MULH0444.
Full textGelin, Marie-Pierre. "Synthèse et étude des propriétés thermiques de nouveaux bismaleimides cristaux liquides." Toulon, 2004. http://www.theses.fr/2004TOUL0020.
Full textThe subject relates to the achievement of original bismaleimides including a mesogenic group and a flexible spacer and to the study of their properties. These new monomers have a symmetrical molecular structure which comprises a mesogenic group of type phenylbenzoate or aromatic amide and a flexible structure of type polymethylenic, polyoxyethylenic or organofluorine. The flexible groups are connected to the mesogenic groups by an ether or ester junction. A study of the thermal properties and the cross-linking of these compounds in the liquid crystalline state were carried out. These new materials present, according to their structure, of the interesting glass temperatures. With aromatic amides, these temperatures are higher than 300°C. The correlations between structure and thermal properties were specified. These correlations give interesting development prospects in the field of the thermosetting resins
Oumzil, Khalid. "Synthèse totale d’hétéro et de dihétéro stéroïdes." Aix-Marseille 3, 2006. http://www.theses.fr/2006AIX30011.
Full textCondensation of 1,8-bis(trimethylsilyl)octa-2,6-diene with chloroacetic anhydride followed by basic treatment, led to the spirodivinylcyclopentanic epoxide, which is a good precursor of molecules bearing an heteroatome. The formation of the thioacetate gives access to a set of 11-thia steroids diversely substituted on the A ring. The very good selectivity of Diels-Alder reactions led to the isomers with the natural trans-anti-trans stereochemistry. We also achieved the first efficient synthesis of an azabenzocyclobutene, precursor of 3-aza steroids bearing an aromatic A ring through a five steps sequence from BISTRO and more than 42 % overall yield. Moreover, using our azabenzocyclobutene and the same strategy developed previously, we have achieved the first total synthesis of 3-aza-11-thia and 3-aza-11-oxa steroids through a five steps sequence from BISTRO with respectively 18 and 19 % overall yield