Дисертації з теми "Copolymères ioniques"
Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями
Ознайомтеся з топ-22 дисертацій для дослідження на тему "Copolymères ioniques".
Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.
Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.
Переглядайте дисертації для різних дисциплін та оформлюйте правильно вашу бібліографію.
Lambert, Romain. "Nouveaux copolymères et nanostructures dérivés de liquides ioniques à base d'imidazoliums : applications en catalyse et comme additifs conducteurs ioniques." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0306/document.
Повний текст джерелаPoly(ionic liquid)s (PILs) in the form of random copolymers, single chain nanoparticles(SCNPs), or self assembled block copolymers have been used as N-heterocyclic carbenes(NHCs) precursors for the purpose of organic and organometallic catalysis. Introducing acetate derivative counter anion in imidazolium based PIL units enable in situ generation of catalyticallyactive NHC. SCNPs have been specially designed along two strategies including, firstly, a self quaternization reaction involving two antagonists groups supported on to the polymer chain and,secondly, an organometallic complexation featuring palladium salt. Both polymeric precursors were obtained using RAFT as controlled polymerization method. Amphiphilic block copolymers composed of a PIL block functionalized by palladium have been synthesized by RAFT and self-assembled in water, leading to micellar structures. Confinement effect has been demonstrated through Suzuki and Heck coupling in water showing kinetic gain compared to molecular homologue in addition to an easier recycling method.Finally, PIL-benzimidazolium based block copolymers with lithium bis(trifluoromethane)-sulfonylimide anion have been developed as ionic conductor doping agent for PS-PEO matrix. Thin films blends with minimum doping agent amount led to optimum ionic conductivity owing tolong range order
Bui, Thi Tuyet Van. "Redox active ionic liquids from synthesis to surface modification : grafting and surface polymerization towards functional electrode materials." Sorbonne Paris Cité, 2015. http://www.theses.fr/2015USPCC205.
Повний текст джерелаIonic liquids (ILs) are described as a new class of molten salts consisting entirely of ions having a melting point below 100°C. Ionic liquids constitute a class of materials with many promising applications in very diverse fields. Their properties can be tailored by modifying the combination of ions in their composition. The introduction of the functional group forms "functionalized or task-specific ionic liquids" and allows us to tune the property for a particular application. Taking the advantage of introducing a monomer group to ILs, we can give rise a new family of functional polymer labeled polymeric ionic liquids or poly(ionic liquids) (PILs). ILs or PILs containing redox active groups are interesting because of their different applications such as molecular electronics, (bio)analytical sensor, energy transduction materials, electrochemical actuator, smart surfaces, solar cells, organic memory devices, as well as polymer based batteries. Since 2000, the research on ionic liquid-modified electrodes became intensively developing area. In term of electrochemical approach and considering the above factors, the work in this thesis focused on three points: i) synthesis of redox active ionic liquids, ii) grafting redox active ionic liquids by electrochemical process, iii) immobilization of redox poly(ionic liquids) on electrode surface. This thesis contains six chapters : -Chapter 1 presents an overview of ionic liquids and Poly(ionic liquids), their composition synthesis and use in electrochemical investigations. -Chapter 2 concentrates on the synthesis of ionic liquids (ILs) and report their protocol. - Chapter 3 reports the immobilization of task-specific ionic liquids on carbon electrodes by means of electrochemical grafting. Chapter 4 studies the formation redox Poly(ionic liquids) onto carbon electrode surfaces using four methods: direct electropolymerization, Graft-fast, Surface Electro-initiated Emulsion Polymerization (SEEP) and Surface-Initiated Atom Transfer Radical Polymerization (SI-ATRP). -Chapter 5 envisages the preparation of bi-functional PILs containing both ferrocene and anthraquinone on polymer chain by SI-ATRP method. -Chapter 6 lists the conclusions of this thesis and displays future prospects for the bi-functional materials
Nicolas, Mathieu. "Synthèse de copolymères ioniques réactifs pour la fonctionnalisation de nanocellulose : application au développement de membranes échangeuses d’ions." Thesis, Lyon, 2021. https://tel.archives-ouvertes.fr/tel-03789605.
Повний текст джерелаIon exchange membranes (or electrolyte membranes) currently used in electrochemical storage devices (batteries and fuel cells) are generally the result of a polluting, complex and expensive synthesis. The most studied architecture is a perfluorosulfonated ionomer known as Nafion, which fulfills almost all the prerequisites of a high-performance ion membrane: high mechanical and thermochemical resistance, high ionic conduction and low swelling. Nanocellulose is a biosourced polymer material that can be used for the production of membranes, also called nanopapers with excellent mechanical strength. However, these materials must be chemically modified to fulfill the role of a polymer electrolyte membrane. The objective of this thesis is therefore to synthesize new electrolyte membranes from the surface grafting of reactive copolyélectrolytes to nanocelluloses. This “grafting onto” technique is based on the presence of reactive primary amine functions within the copolyélectrolyte. These may react by reductive amination with aldehyde functions located on the surface of nanocelluloses and previously introduced by a sodium periodate (NaIO4) oxidation step. In the first place, radical copolymerization was used to synthesize these reactive polyelectrolytes following two distinct approaches. The first approach consisted in modifying a poly(styrene sulfonate)-co-poly(acrylamide) precopolymer (PSS-PAA) by the Hofmann reaction to form a poly(styrene sulfonate)-co-poly(vinylamine) (PSS-PVAm) containing between 6 and 58% of amine functions. The second approach was based on the chemical modification of a poly(styrene sulfonate)-co-poly(chloromethyl styrene) copolymer (PSS-PCMS) by a diamine via nucleophilic substitution to obtain the amino derivative poly(styrene sulfonate)-co-poly(benzylamine) (PSS-PBA). In a second part, the grafting of commercial polyamines and synthetized copolyelectrolytes onto oxidized nanocelluloses by reductive amination was studied. In particular, it was shown that the amount of grafted commercial polyamine could be simply adjusted with the main experimental parameters, reaching an IEC of 4.5 meq/g. However, the grafting of the synthesized copolyelectrolytes was limited by issues of solubilization of cellulosic fragments. The study of the influence of the membrane composition on ionic conductivity and mechanical properties showed an increase in conductivity up to 1.1 mS/cm (3.1 meq/g), while the maximum tensile strength (4.0 MPa) was measured for an intermediate IEC value of 1.6 meq/g
Braun, Olivier. "Synthèse en microémulsion de polymères ioniques stimulables et étude de leurs propriétés en solution aqueuse." Université Louis Pasteur (Strasbourg) (1971-2008), 2001. http://www.theses.fr/2001STR13218.
Повний текст джерелаBurguiere, Carine. "Synthèse de copolymères à blocs amphiphiles ioniques par polymérisation radicalaire contr^olée : utilisation comme stabilisants en polymérisation radicalaire en émulsion." Paris 6, 2001. http://www.theses.fr/2001PA066402.
Повний текст джерелаGandasasmita, Suryo. "Synthèse et électropolymérisation de monomères pyrroliques contenant des échangeurs de cations et des complexants macrocycliques : caractérisations des films polymères en présence de solutions ioniques." Montpellier 2, 2001. http://www.theses.fr/2001MON20124.
Повний текст джерелаLe, Coz Botrel Ronan. "Application de la métathèse à la dégradation contrôlée de polydiènes pour la synthèse de copolymères et à l'élaboration d'ionogels." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMC261.
Повний текст джерелаThe work described in this thesis has been devoted to the synthesis of poly(isoprene-co-norbornene)-type copolymers and homopolymers of the poly-norbornene type. These polymers were then exploited for the preparation of ionogels.Homopolymer synthesis is based on ring-opening metathesis polymerization of various norbornene derivatives. As for the copolymers, they were obtained by coupling this polymerization reaction and cross-metathesis from polyisoprene and functional-ized norbornenes.In a first step, the copolymer synthesis process was studied and optimized with synthetic polyisoprene, then it was extended to cryobrushed truck tire waste, making it possible to obtain poly(isoprene-co-norbornene) with a mass yield of 15%.The preparation of chemical ionogels by ring-opening metathesis polymerization of bisnorbornenes in [C4C1im][PF6] has been optimized to allow the formation of two types of ionogel that can contain up to 92 wt% ionic liquid. The chemical ionogels ob-tained here have conductivities close to that of [C4C1im][PF6] alone
Deschênes, Louise. "Organisation moléculaire de films de Langmuir de polymères non-ioniques. Cas du PEO et effet de la nature du bloc hydrophobe sur ses copolymères blocs à l'interface air/eau." Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25354/25354.pdf.
Повний текст джерелаDeschênes, Louise. "Organisation moléculaire de films de langmuir de polymères non-ioniques : cas du PEO et effet de la nature du bloc hydorphobe sur ses copolymères blocs à l'interface air/eau." Doctoral thesis, Université Laval, 2008. http://hdl.handle.net/20.500.11794/19896.
Повний текст джерелаCoupillaud, Paul. "Reactive Poly(ionic liquid)s (PILs) and Nanostructures from PIL-based Block Copolymers." Thesis, Bordeaux, 2014. http://www.theses.fr/2014BORD0185/document.
Повний текст джерелаThe aim of this PhD work is to expand the scope of engineered imidazolium-based poly(ionicliquid)s (PILs) and their related PIL-block copolymers (PIL BCPs).The use of the imidazolium-based PILs as true reactive polymers for organocatalysis and post-chemicalmodification is first described. Miscellaneous air-stable PIL derivatives featuring various counter-anions(e.g. bromides, hydrogen carbonates, carboxylates), including homopolymers, statistical copolymers ofstyrenic-type and crosslinked copolymer networks have been specifically designed by relatively simplesynthetic strategies. The generation of related polymer-supported N-heterocyclic carbenes, poly(NHC)s,enables comparing the catalytic performances in selected organocatalyzed reactions. Specific polystyrenebasedcoPILs can be also stoichiometrically derivatized by post-chemical modification using variouselectrophilic substrates (e.g. CS2, isothiocyanate, transition metals).A novel family of imidazolium-based PIL BCPs, namely poly(vinyl acetate)-b-poly(N-vinyl-3-alkylimidazolium bromide)s synthesized by CMRP, is then described. The ability of these compounds toself-assemble into various types of mesostructures in bulk or in solution has been demonstrated. Ionicconductivity measurements evidenced the influence of sample preparation and measurement conditions.The behavior in solution evidenced via the ionic responsiveness of the PIL block but also by post-chemicalmodification of the hydrophobic poly(vinyl acetate) block into hydrophilic poly(vinyl alcohol) theformation of various micelle-like nanostructures.Keywords: Poly(ionic liquid)s, Block copolymers, Imidazolium, Organocatalysis, Post-polymerizationmodification, Self-assembly, Ionic conductivity, Gold nanoparticles
El objetivo de esta tesis fue el desarrollo de polímeros de ingeniería iónicoslíquidos (pils) y tipo imidazolio una nueva familia de copolímeros de bloques relacionados.Lager tipo imidazolio fueron utilizados como reactivos para la catálisis orgánica ymodificación química de polímeros después de la polimerización. Varios compuestos(homopolímeros, copolímeros aleatorios de tipo estireno, polímeros reticulados) estable en elaire, contra de la realización diversos aniones (bromuros, bicarbonatos, carboxilatos), hansido especialmente diseñadas utilizando estrategias de síntesis relativamente simple. Se utilizóla generación de carbenos N-heterocíclicos soportado sobre polímeros (poli (NHC) s) paracomparar el rendimiento catalítico de estos precursores de referencia a través de reacciones decatálisis orgánica. Específicamente, los copolímeros de tipo estireno también se puedenfuncionalizar sustratos por polimerización posterior estequiométricamente con diferenteselectrófilos (por ejemplo, metales CS2, isotiocianato, de transición).Una nueva familia de copolímero de bloque que contiene un poli (acetato de vinilo) y unbloque de poli (bromuro de N-vinil-3-alquilimidazolio) se sintetizó en CMRP. La capacidadde estos compuestos a auto-ensamblan en varias mesoestructuras como entonces se demostrósolución en masa. Mediciones de conductividad iónica han demostrado la influencia de lascondiciones de preparación y medición de la muestra en los valores obtenidos. Elcomportamiento en solución por el bloque PIL reactividad de iones, y la modificaciónquímica del bloque hidrófobo de poli (acetato de vinilo) hidrófilo poli (alcohol vinílico)permitió la formación de nanoestructuras diferentes micelares.Palabras clave: polímeros líquidos iónicos, copolímeros de bloque, imidazolio, catálisisorgánica, Cambiar post-polimerización, auto-ensamblaje, conductividad iónica, lasnanopartículas de oro
Elloumi, Amira. "Synthèse de nouveaux polymères issus de la biomasse pour applications dans le domaine des energies alternatives." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSE1271.
Повний текст джерелаThe syntheses of partially biobased poly(1,2,3-triazolium)s were first investigated by reversible addition−fragmentation chain transfer (RAFT) polymerization of tailor-made 1,2,3- triazole-functionalized (meth)acrylate monomers derived from levulinic acid followed by N-alkylation of the 1,2,3-triazole moieties and subsequent anion exchange. Control over RAFT polymerization was ascertained, and dormant chain-ends of 1,2,3-triazole-functionalized polymethacrylate could be re-activated to afford neutral and charged BCPs. Sequential RAFT polymerizations of 1,2,3-triazole-functionalized methacrylate and styrene followed by N-alkylation and anion exchange reactions, affords two poly(1,2,3-triazole) and two poly(1,2,3-triazolium)-based diblock copolymers (BCPs) with different weight fractions of each block. Structure/properties relationships of all obtained materials were discussed and ionic conductivity poly(1,2,3-triazolium)s was assessed. The morphological and self-assembling properties of neutral and charged BCPs in bulk and in thin films were investigated
Le, Ninivin Céline. "Elaboration et validation de dérivés polyparaphénylène substitués sulfonés comme électrolyte solide pour piles à combustible à membrane échangeuse de protons." Poitiers, 2003. http://www.theses.fr/2003POIT2318.
Повний текст джерелаThe synthesis and the valuation of sulfonated derivated polyparaphenylene (PPP) as solid electrolytes for proton exchange membrane fuel cells consist of the stake of this work. The approaches adopted concern the methods of introduction of the acid group and their influence on the properties of the ionic materials. The synthesis and characterization of three different side chains substitued PPP were realized. The study of the post sulfonation of two polymers and the grafting of another one with different fonctionnalized phenols allowed the preparation of ionic copolymers with variables properties. This grafting method is particularly original in the case of sulfonated perfluorinated phenol with thermally stable aromatic polymers. Many physico-chemical characterization (conductivity, permeability, mechanical properties and morphology) show interesting differences between post sulfonated materials and grafted materials. Some relationship between structures and properties are observed and discussed. The role of many fuel cell tests parameters like temperature, membrane thickness, copolymer acidity, was studied. The results point out that polyparaphenylene, and especially the perfluorinated grafted copolymer, are promising materials for PEMFC application. More than, the results of fuel cell tests are in good agreement with the physico-chemical characterization
Garcia, Régis. "Contribution à la séparation actinides-lanthanides : utilisation de matériaux ionosélectifs synthétisés par empreinte ionique." Lyon 1, 1998. http://www.theses.fr/1998LYO10098.
Повний текст джерелаValade, David. "Synthèse de Copolymères fluorés porteurs de groupements ammonium pour liants d'électrode de piles à combustible alcalines à coeur solide." Phd thesis, Université Montpellier II - Sciences et Techniques du Languedoc, 2007. http://tel.archives-ouvertes.fr/tel-00181780.
Повний текст джерелаDevaux, Didier. "Caractérisation et optimisation de copolymères à blocs comme électrolytes de batteries lithium métal." Thesis, Aix-Marseille, 2012. http://www.theses.fr/2012AIXM4748/document.
Повний текст джерелаThe key limiting factor for the deployment of Lithium metal batteries is the formation of lithium dendrites at the anode during recharge. One solution consists in the use of a solid polymer electrolyte. A bloc copolymer is composed of one or several conductive blocks based on PEO (poly(ethylene oxide)), linear or branched, doped with a lithium salt (LiTFSI) and reinforced blocks that ideally mitigate the dendritic growth. These materials can self-organize in nanometric domains. The interfaces between the domains generate sufficient mechanical properties at the macroscopic level whilst, locally, the PEO chain dynamics remain high, ensuring ionic conduction.This thesis deals with physico-chemical characterizations of these copolymer electrolytes, with different architectures (diblock, triblock and star shaped), and the optimization of their composition. A fundamental study of doped polymers highlighted the main mechanisms of ionic transport and the impact of the end groups at low molar mass on conductivity and viscosity. This step enabled a selection of the best candidates to be made. A study of the electrolyte stability with respect to lithium was carried out. After the formulation of cathodes, plastic batteries were assembled and successfully tested by galvanostatic cycling under temperature [40°C-100°C] and high regime. Finally, a 6 mAh prototype realised more than 400 cycles under the regime C/4 and D/2 at 100°C
Liao, Jiunn-Der. "Modifications physico-chimiques et mécaniques du polyéthylène et du polypropylène par implantation ionique, plasma micro-ondes,bombardement d'électrons et irradiation gamma." Grenoble INPG, 1995. http://www.theses.fr/1995INPG4202.
Повний текст джерелаGlipa, Xavier. "Conduction protonique dans les systèmes minéraux et polymères. Propriétés du polybenzimidazole sulfoné." Montpellier 2, 1998. http://www.theses.fr/1998MON20256.
Повний текст джерелаDecker, Isabelle. "Etudes électrochimiques de dérivés du tétrathiafulvalène en milieu polyoxyéthylène." Grenoble INPG, 1999. http://www.theses.fr/1999INPG0092.
Повний текст джерелаNguyen, Vo Thu An. "Magnetic polyion complex micelles as therapy and diagnostic agents." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0138/document.
Повний текст джерелаThis Ph.D. dissertation describes the synthesis of superparamagnetic iron oxide nanoparticles (SPIONs) designed to serve as magnetic resonance imaging (MRI) contrast agents and for heat generation in cellular radiofrequency magnetic field hyperthermia (MFH) treatment. Control over the size and size distribution of the iron oxide nanoparticles (NPs), and thus over their magnetic properties, was achieved using a G1 arborescent copolymer (comb-branched (G0) polystyrene substrate grafted with poly(2-vinylpyridine) side chains, or G0PS-g-P2VP) as a template. Good colloidal stability and biocompatibility of the SPIONs were achieved via the formation of polyion complex (PIC) micelles with a poly(acrylic acid)-block-poly(2-hydroxyethyl acrylate) (PAA-b-PHEA) double-hydrophilic block copolymer
Charpentier, Dominique. "Carboxyméthylcelluloses à hydrophobie variable : propriétés associatives en solution diluée et semi-diluée." Rouen, 1998. http://www.theses.fr/1998ROUES012.
Повний текст джерела"Organisation moléculaire de films de Langmuir de polymères non-ioniques. Cas du PEO et effet de la nature du bloc hydrophobe sur ses copolymères blocs à l'interface air/eau." Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25354/25354.pdf.
Повний текст джерелаSkrypnik, Valentyn. "Synthèse d'un copolymère ionique électrochimiquement actif à base de ferrocène-imidazolium et son utilisation possible en matériaux composites." Thèse, 2018. http://hdl.handle.net/1866/21950.
Повний текст джерела