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Добірка наукової літератури з теми "Copolymères fonctionnels"
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Дисертації з теми "Copolymères fonctionnels"
Viet, David. "Valorisation de nouveaux oligosaccharides fonctionnels dans la synthèse de copolymères cationiques." Université Joseph Fourier (Grenoble), 2004. http://www.theses.fr/2004GRE10092.
Повний текст джерелаIn recent years, a great attention has been paid to polymers bearing pendant saccharide moieties, herein referred to as glycopolymers, because of their potentials as biotechnological, pharmacological and medical materials. However only a few studies have been reported on cosmetic applications on such polymers and their contribution. During this work, we have synthesized copolymers with monomers bearing saccharide moieties of cellobiose and xyloglucans. After a bibliographic introduction about the different possible ways to obtain deals with the synthesis of glycopolymers with the help of cationic comonomers, MAPTAC. We worked on finding the best method, in batch, with the capacity to reach the highest molar conversion as possible (near 100%) in glycosidic monomers. In the last chapter, we used different techniques of characterization such as viscosimetry, size exclusion chromatograpgy, static light scattering. With the help of them, we have shown we synthesized glycopolymers with high molecular mass, one of our main target
Petrova, Petya. "Synthèse de nouveaux monomères trifluorovinyliques fonctionnels et leurs copolymérisations avec des oléfines fluorées." Montpellier 2, 1998. http://www.theses.fr/1998MON20034.
Повний текст джерелаFrezet-Erout, Marie-Noëlle. "Synthèse et caractérisation de copolymères fonctionnels à base de N-vinyl pyrrolidone : élaboration de conjugués copolymère-oligodésoxyribonucléotides et leur utilisation dans le diagnostic médical." Lyon 1, 1994. http://www.theses.fr/1994LYO10332.
Повний текст джерелаGodoy, Lopez Ricardo. "Synthèse de polyéthylènes fonctionnels : application à l'élaboration de copolymères à blocs par des techniques de polymérisation radicalaire contrôlée." Lyon 1, 2006. http://www.theses.fr/2006LYO10036.
Повний текст джерелаToufik, Jamila. "Interactions de copolymères fonctionnels dérivés du Sephadex avec le système du complément et les monocytes humains." Paris 13, 1994. http://www.theses.fr/1994PA132010.
Повний текст джерелаWarnant, Jérôme. "Synthèse et caractérisation de nanomatériaux fonctionnels siliciques structurés à l'aide de micelles complexes de copolymères séquencés doublement hydrophiles." Thesis, Montpellier, Ecole nationale supérieure de chimie, 2010. http://www.theses.fr/2010ENCM0005/document.
Повний текст джерелаThis study focused on the design and development of new structuring agents of silica constituted of induced and reversible assemblies of original copolymers, the double hydrophilic block copolymers (DHBC). The first system studied consists of a neutral-anionic DHBC PAPEO-b-PAA ou poly(acrylate methoxy poly (ethylene oxide))-b-poly (acrylic acid). The PAA block is a weak polyacid with a degree of ionization depending on the pH. In aqueous solution and in a right pH range, the association of this copolymer with a weak polybase, an oppositely charged polyamine, such as an oligochitosan, leads to the formation of polyion complex micelles (PIC) with a core/corona structure. These micelles can direct the structure of highly organized inorganic materials with different types of mesostructures. In a second step, by adjusting the conditions of pH, ionic strength, it is possible to "control" the extraction of organic species to get functional porous materials able to trap species of charge opposite to the functionality. Organized materials are obtained because of a favourable balance of the interactions between organic and inorganic species. If a polyamine/silica interaction occurs at the expense of the interaction polyamine/DHBC, the mesostructuring process by the micelles is limited. A neutral-cationic DHBC PEO-b-PDMAEMA poly(ethylene oxide)-b-poly(2-(dimethylamine)ethyl) associated with an anionic PVS poly(vinyl sulfonic acid) polymer can play a dual role in the synthesis of silica materials: firstly managing the growth of silica particles by interacting with the silicates and secondly acting as a structuring agent in association with PVS, confering a mesostructuration to the material. Finally, a very promising approach allowed to encapsulate water-soluble and charged drugs in a material by using as silica complexing agent a complex between the drug and a DHBC
Petit, Christelle. "Etude et applications de la chromatographie liquide aux conditions critiques à l'analyse de polymères fonctionnels et de copolymères à blocs." Aix-Marseille 1, 2007. http://www.theses.fr/2007AIX11014.
Повний текст джерелаChuda, Katarzyna. "Élaboration et modification sous rayonnement des polymères fonctionnels pour les microsystèmes analytiques." Lille 1, 2005. https://ori-nuxeo.univ-lille1.fr/nuxeo/site/esupversions/55368e96-85f4-4fe2-bcc6-74ad9db76d59.
Повний текст джерелаLuneau, Benoît. "Caractérisation de polystyrènes fonctionnels issus de la PRC [Polymérisation radicalaire contrôlée] et de copolymères amphiphiles à blocs par chromatographie liquide aux conditions critiques." Aix-Marseille 1, 2007. http://www.theses.fr/2007AIX11069.
Повний текст джерелаThe appearance of controlled/living radical polymerization techniques (NMP, ATRP and RAFT) in the 80’s led to a great enthusiasm, considering their easy processing and tolerance towards impurities. Most of published papers are aiming at the polymerization of new monomers rather than trying to characterize the synthesized polymers. Using Liquid Chromatography at the Critical Conditions (LC-CC), we have developed a tool making the comparison of the different CRP techniques feasible, in terms of controlled and living characters. This tool offers the possibility to precisely determine the composition of a polymer sample, in terms of functional groups distribution. We also study the feasibility of the analysis of strong amphiphilic block copolymers (such as PS-b-PAA) by LC-CC. Then we have applied LC-CC to the determination of grafting reactions yields and to the study of termination mechanisms in radical polymerization. Finally, we also studied the visibility of a functional group in LC-CC depending on its position on the polymer chain
Gody, Guillaume. "Synthèse de monomères saccharidiques pour l'élaboration de glycopolymères à gradient, α-fonctionnels et à blocs par le procédé RAFT : application à l'immobilisation de biomolécules par reconnaissance spécifique ou par covalence". Lyon 1, 2008. http://www.theses.fr/2008LYO10302.
Повний текст джерелаIn the biological diagnosis field, glycopolymers are particularly interesting since they can be used either as support for covalent coupling of biomolecules or as multivalent architectures that favor the recognition processes with proteins. The purpose of this PhD thesis was the synthesis of original and well-defined gycopolymers, using a controlled radical polymerization technique, the RAFT process, with the aim of preparing new useful tools for diagnosis tests (capture and detection of nucleic acids and pathogenic agents). Five glycomonomers derived from D-galactose, D-mannose and N-acetyl-D-glucosamine were synthesized and then copolymerized with N-acryloylmorpholine (NAM) in the presence of three dithiobenzoate derivatives used as chain transfer agents (two of them bearing a biotin). Statistical copolymers (some -biotinylated) with various DPn in saccharide moieties were prepared in a controlled manner (Ip = 1,1-1,3). The “living” character of polymer chains was confirmed by preparing a diblock copolymer (consisting of NAM and N-acryloxysuccinimide (NAS) statistically copolymerized, thus providing lateral activated ester functional groups useful for further modification). Finally, three applications highlighted the potentialities of these glycopolymers : synthesis of “glycopolymer-ODN” conjugates using galactosylated glycopolymers ; preparation of biotinylated gold glyconanoparticules, characterized by Surface Plasmon Resonance (SPR) ; study of the specific recognition between mannosylated glycopolymers and lectin ConA by capillary electrophoresis