Relevant bibliographies by topics / Polymer matrices / Dissertations / Theses
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Dissertations / Theses on the topic 'Polymer matrices'

Author: Grafiati
Published: 4 June 2021
Last updated: 15 February 2022

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1

Nolan, Trevor F. "Organometallic reactions in polymer matrices." Thesis, University of Nottingham, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243749.

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2

Lee, Yook Heng. "Ion-selective acrylic polymer matrices." Thesis, University of Cambridge, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.624889.

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3

Lim, Kate. "Supramolecular polymer blends for composite matrices." Thesis, University of Reading, 2016. http://centaur.reading.ac.uk/66400/.

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This research project reports a new approach to thermoplastic composite matrix design, in which a low-MW polymer additive acts as a plasticiser and flow-promoter at high temperatures, but as a non-covalent cross-linking agent at lower temperatures. Thus, poly(aryl ether ketone)s (PAEKs) are functionalised with π-electron rich terminal groups and blended with π-electron deficient polyimides. A non-covalent charge-transfer stacking interaction between the two polymers forms a self-assembled supramolecular network. Carbon fibre composites with matrices composed of these supramolecular polymer ble
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4

Rogge, Carsten. "Photophysical studies of organic dyes in polymer matrices." Thesis, Cranfield University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266485.

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5

Hu, Anran. "Mixed polymer hydrophilic matrices containing HPMC and PEO." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/31558/.

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The research in this thesis describes investigations of (i) mixed polymer HPMC and PEO hydrophilic matrices and their performance in low and high ionic environments and (ii) understanding the internal behaviour of HPMC and PEO mixed systems. It was postulated that using a blend of these polymers might provide advantages over the use of single polymers. A series of ‘realistic’ 30% w/w polymer matrix formulations, containing different weight ratios of HPMC and PEO and a soluble model drug (caffeine), were tested in ionically challenging media, up to 1M sodium chloride (NaCl). Dissolution testing
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6

Hisada, Kenji. "Triplet Energy Transfer and Migration in Polymer Matrices." Kyoto University, 1998. http://hdl.handle.net/2433/157030.

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本文データは平成22年度国立国会図書館の学位論文(博士)のデジタル化実施により作成された画像ファイルを基にpdf変換したものである<br>Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(工学)<br>甲第7329号<br>工博第1704号<br>新制||工||1104(附属図書館)<br>UT51-98-G258<br>京都大学大学院工学研究科高分子化学専攻<br>(主査)教授 山本 雅英, 教授 山岡 仁史, 教授 増田 俊夫<br>学位規則第4条第1項該当
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7

Livi, Sébastien. "Ionic liquids : multifunctional agents of the polymer matrices." Lyon, INSA, 2010. http://theses.insa-lyon.fr/publication/2010ISAL0101/these.pdf.

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An excellent thermal stability, a low saturated vapor pressure, a no flammability, a good ionic conductivity and the different cations / anions combinations possible of ionic liquids are currently the focus of the research. Because of its various benefits, they are as a new alternative in the polymer science, and particularly in the field of the nanocomposites where their use is currently limited to the function of surfactant for the layered silicates. However, before claiming the status of an alternative, it is necessary to highlight the benefits of their use on the final properties of polyme
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8

Gudmundsdóttir, Anna Dóra. "Photochemistry of some naphthoquinols in solid polymer matrices." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/27471.

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The main objective of this work was to study how polymer media can modify the photochemical reactivity of dissolved guest molecules. Three tetrahydronaphthoquinols, whose photochemistry is known to be sensitive to the reaction medium, were synthesized for this study. The photochemistry of these compounds consisted of [2 + 2] cycloaddition in solution and hydrogen abstraction-initiated rearrangement in the solid state. Different photopro-ducts from solution and solid state photolysis were interpreted as being due to reaction from different conformers in the different media. 2,3,4aα,6,7,8aα-hex
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9

Zimmerman, Catherine Mary. "Advanced gas separation membrane materials : hyper rigid polymers and molecular sieve-polymer mixed matrices /." Digital version accessible at:, 1998. http://wwwlib.umi.com/cr/utexas/main.

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10

D'mello, Sheetal Reginald. "Natural polymer based gene activated matrices for bone regeneration." Diss., University of Iowa, 2015. https://ir.uiowa.edu/etd/1586.

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Gene therapy using non-viral vectors that are safe and efficient at transfecting target cells is an effective approach to overcome the shortcomings of delivery of growth factors in protein form. The objective of this study was to develop and test a non-viral gene delivery system for bone regeneration utilizing a collagen scaffold carrying polyethylenimine (PEI)-plasmid DNA (pDNA) complexes. Two different pDNA were used: pDNA encoding platelet derived growth factor-B (PDGF-B) and pDNA encoding vascular endothelial growth factor (VEGF). The complexes were fabricated at an amine (N) to phosphate
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11

Domènech, Garcia Berta. "Fabrication of polymer-metal nanocomposites with complex polymeric matrices for bactericidal and catalytic applications." Doctoral thesis, Universitat Autònoma de Barcelona, 2014. http://hdl.handle.net/10803/284874.

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D’una manera general, el present treball està enfocat a l’obtenció i l’estudi de nous materials útils per al tractament combinat d’aigües, és a dir, materials capaços d’aconseguir diferents objectius al tractar l’aigua en un sol pas. Aquest propòsit sembla un nínxol d’aplicació molt adient per als materials de mida nanoscòpica, donades les inusuals propietats catalítiques i bactericides que presenten com a conseqüència de la seva mida. No obstant, els nanomaterials, i en especial les nanopartícules metàl·liques (metal nanoparticles, MNPs), també tenen limitacions i poden plantejar cert
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12

McCallion, Roisin Lesley. "The controlled release of macromolecules from macroporous hydrophilic polymer matrices." Thesis, Aston University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293994.

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13

Chan, Wai-Chan. "Development of liquid crystalline materials as matrices for polymer composites." Thesis, University of Cambridge, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334122.

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14

McCallion, Roisin Lesley. "The controlled release of macromolecules from macroporous hydrophyllic polymer matrices." Thesis, Aston University, 1990. http://publications.aston.ac.uk/12587/.

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This work has used novel polymer design and fabrication technology to generate bead form polymer based systems, with variable, yet controlled release properties, specifically for the delivery of macromolecules, essentially peptides of therapeutic interest. The work involved investigation of the potential interaction between matrix ultrastructural morphology, in vitro release kinetics, bioactivity and immunoreactivity of selected macromolecules with limited hydrolytic stability, delivered from controlled release vehicles. The underlying principle involved photo-polymerisation of the monomer, hy
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15

Kandasubramanian, Balasubramanian. "EMI properties of electroless nickel-coated mica in different polymer matrices." Thesis, Loughborough University, 2003. https://dspace.lboro.ac.uk/2134/34962.

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The objective of this research is to develop conductive plastics for the shielding of electromagnetic interference (EMI). In conducting polymer composite materials, conducting particles are incorporated in an insulating matrix. A well characterised grade of mica was used to prepare nickel-coated mica fillers. Work involved optimisation of different factors including the effects of agitation, temperature, pH, catalyst concentration and concentration of nickel solution. Systems with separate activator and sensitiser, and also with a single solution containing both activator and sensitiser were e
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16

Akhtar, Mohamed U. "Towards controlled release of a natural mosquito repellent from polymer matrices." Diss., University of Pretoria, 2014. http://hdl.handle.net/2263/46236.

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Malaria is still the most important parasitic disease in humans with most cases occurring in Sub-Saharan Africa (90% cases). It is transmitted via anopheles mosquitoes. Several vector control methods are available, e.g. long lasting insecticidal mosquito nets (LLINs), insecticide-treated nets (ITNs) and indoor residual spraying (IRS). However, they are effective only when a person is in-doors. Outdoor protection can be obtained for short periods (48-72 hours) using topical repellents. This preliminary study investigated the possibility to develop longer acting delivery forms based on polymer t
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17

Morrissey, Patrick John. "Experimental study of parameters influencing diffusion of small molecules in polymer matrices." Thesis, Brunel University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294506.

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18

Pavlenko, Ekaterina. "Probing interaction and dispersion of carbon nanotubes in metal and polymer matrices." Toulouse 3, 2014. http://thesesups.ups-tlse.fr/2586/.

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L'incorporation de nanotubes de carbone (NTC) dans des polymères et des métaux modifie leurs propriétés intrinsèques. Disperser des NTCs uniformément dans une matrice reste difficile du fait de leur forte agglomération. La spectroscopie Raman est une technique particulièrement adaptée pour détecter la présence et l'interaction avec l'environnement de NTCs. Dans ce travail, la spectroscopie Raman est utilisée, en association avec d'autres techniques, pour étudier les NTCs dans une matrice métallique ou polymère. Le dopage avec des super-acides, l'analyse de défauts dans les zones d'usure et la
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19

Aberg, Christopher Mark. "Modification of Polymer Membranes: A Study of Crosslinking and In-Situ Growth of Palladium-Containing Nanoparticles in Polymer Matrices." NCSU, 2008. http://www.lib.ncsu.edu/theses/available/etd-07092008-182305/.

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A crucial step in obtaining pure hydrogen is separating it from other compoundsâmainly CO2âthat often accompany hydrogen in industrial chemical reactions. Advanced membrane technology may prove to be the key to the successful, economical production of molecular hydrogen for the eventual consumer market. Size-sieving glassy polymer membranes can separate H2 on the basis of its small size. Alternatively, reverse-selective rubbery polymers can expedite the passage and, hence, removal of CO2 due to its relatively high solubility in such membranes alone or in conjunction with dissociative chemical
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20

Boscolo, Lorenzo. "Extraction of antioxidants from corn by-products for applications in bio-based polymer matrices." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/22415/.

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The objective of this dissertation is the evaluation of the exploitability of corn cobs as natural additives for bio-based polymer matrices, in order to hone their properties while keeping the fundamental quality of being fully bio-derived. The first part of the project has the purpose of finding the best solvent and conditions to extract antioxidants and anti-degrading molecules from corn cobs, exploiting room and high-temperature processes, traditional and advanced extraction methods, as well as polar and nonpolar solvents. The extracts in their entirety are then analysed to evaluate their
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21

Moyo, Lumbidzani. "Fatty acid intercalated layered double hydroxides as additives for Jojoba oil and polymer matrices." Thesis, University of Pretoria, 2012. http://hdl.handle.net/2263/25462.

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Fatty acid intercalated layered double hydroxides were used as additives for Jojoba oil and polymer matrices. The first phase of the study was to intercalate carboxylic acids (C14 to C22). These were successfully intercalated into layered double hydroxides (LDHs), with the formula [Mg0.7Al0.3 (OH) 2](CO3)0. 15•0.5H2O. The one-pot synthesis consistently yielded a bilayer intercalated product for the range of acids employed. The intercalated anions had an orientation tilt angle of 55–63°, depending on the length of the fatty acid chain. However, there is an indication that the anion exchange pro
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22

Cousinet, Sylvain. "Evaluation de nouvelles matrices organiques biosourcées sans styrène pour composites SMC." Thesis, Lyon, INSA, 2013. http://www.theses.fr/2013ISAL0149.

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De par leurs bonnes propriétés mécaniques, leur faible densité, leur faible coût, et leur bel aspect de surface, les composites SMC (Sheet Molding Compound) sont des matériaux de choix pour réaliser des pièces automobiles semi-structurelles. Ces matériaux sont principalement constitués d’une résine polyester (UPR), d’un additif thermoplastique comme agent anti-retrait, de carbonate de calcium comme charge et de fibres de verre coupées comme renfort. Le contexte environnemental et socio-économique actuel encourage les constructeurs automobiles à utiliser des matériaux issus de ressources renouv
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23

Fu, Yao-Tsung. "Molecular Simulation of Dipsersion and Mechanical Stability of Organically Modified Layered Silicates in Polymer Matrices." University of Akron / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=akron1296182515.

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24

Wang, Qing. "STRATEGIES FOR SUSTAINED RELEASE OF SMALL HYDROPHILIC DRUGS FROM HYDROGEL BASED MATRICES." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1515164088562922.

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25

Chandrasekaran, Swetha [Verfasser], and Karl [Akademischer Betreuer] Schulte. "Development of nano-particle modified polymer matrices for improved fibre reinforced composites / Swetha Chandrasekaran. Betreuer: Karl Schulte." Hamburg-Harburg : Universitätsbibliothek der Technischen Universität Hamburg-Harburg, 2014. http://d-nb.info/1059804107/34.

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26

Webers, Samira [Verfasser], and Heiko [Akademischer Betreuer] Wende. "Coupling Mechanism of Cobalt Ferrite in Matrices - Polymer Solutions and Multiferroics Composites / Samira Webers ; Betreuer: Heiko Wende." Duisburg, 2020. http://d-nb.info/1215032269/34.

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27

Bankole, Owolabi M., and Tebello Nyokong. "Mercaptopyridine-substituted indium, zinc, and metal-free phthalocyanines: nonlinear optical studies in solution and on polymer matrices." Taylor & Francis Group, 2015. http://hdl.handle.net/10962/d1020313.

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In this article, the nonlinear optical characterizations and optical limiting properties of metal-free (2), zinc (3), and indium (4) tetra 4-(2-mercaptopyridine) phthalocyanines are discussed. Nonlinear optical properties of the samples were evaluated using Z-scan at 532 nm and 10 ns pulse in CHCl3, and doped on poly(bisphenol A carbonate) (PBC) thin films. Thin films for 2, 3, and 4 are represented as 2-PBC, 3-PBC, and 4-PBC, respectively. We observed two-photon absorption (2PA) and strong reverse saturable absorption as the dominant mechanisms at nanosecond laser excitation in solution and t
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28

Nguyen, Quang Tran. "Process for Improving the Exfoliation and Dispersion of Nanoclay Particles into Polymer Matrices Using Supercritical Carbon Dioxide." Diss., Virginia Tech, 2007. http://hdl.handle.net/10919/27596.

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An environmentally benign process, which uses supercritical carbon dioxide (sc-CO2) as a processing aid, was developed in this work to help exfoliate and disperse nanoclay into the polymer matrices at high clay content. The process involves the use of a pressurized CO2 chamber to assist in the exfoliation and delivery of the clay into a stream of polypropylene (PP) melt within the extruder. This CO2 method was evaluated and compared to other conventional processing techniques. It was observed that the conventional direct-melt compounding methods, with and without the direct injection of CO2, d
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29

Tipduangta, Pratchaya. "Crystallisation of amorphous fenofibrate and potential of the polymer blend electrospun matrices to stabilise in its amorphous form." Thesis, University of East Anglia, 2016. https://ueaeprints.uea.ac.uk/61721/.

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Fenofibrate was chosen as the drug of interest in this study because of its poor water-solubility, highly unstable amorphous state and unpredictable crystallisation behaviour. The crystallisation behaviour of amorphous fenofibrate is essential information that primarily corresponds to the physical stability of solid dispersion formulations. This project aims to probe how to control the crystallisation of amorphous fenofibrate, enhance its aqueous solubility and improve its physical stability by using electrospun polymer blend matrices. A range of characterisation technologies including MTDSC,
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30

Rosetti, Yann. "Multiscale morphologies of epoxy-based composite matrices from combination of TP-tougheners." Thesis, Lyon, INSA, 2015. http://www.theses.fr/2015ISAL0140.

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Les composites stratifiés à matrice organique thermodurcissable (TD) et renforts fibreux continus se sont progressivement imposés dans le monde de l’aéronautique depuis bientôt 50 ans. Ces matériaux, malgré de nombreux avantages ayant permis de remplacer les alliages métalliques précédemment utilisés, ont néanmoins un point faible majeur, à savoir une tolérance aux dommages limitée. De nombreuses solutions de renforcement ont vu le jour, dont l’ajout de polymères thermoplastiques (TP) présentant une ductilité supérieure à la matrice TD. Les travaux réalisés concernent une matrice représentativ
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31

Mather, Paul J. "Functionalisation and characterisation of carbon blacks and their incorporation into HDPE and EVA polymer matrices to form conducting composites." Thesis, University of Newcastle Upon Tyne, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287828.

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32

Le, Moullec Sophie. "Développement de polymères à empreintes moléculaires pour l'extraction sélective de produits de dégradation de neurotoxiques organophosphorés de matrices complexes." Paris 6, 2007. http://www.theses.fr/2007PA066462.

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Ce travail a eu pour objectif de développer des polymères à empreintes moléculaires (MIP) afin d’extraire sélectivement les alkyl alkylphosphonates de matrices complexes. Ces MIP contiennent des cavités conduisant à la reconnaissance d’une molécule dite « empreinte ». Plusieurs MIP ont été synthétisés utilisant le pinacolyl méthylphosphonate comme empreinte puis caractérisés. Ces MIP ont ensuite été utilisé pour le traitement de matrices complexes mettant en évidence leur aptitude à isoler les molécules cibles des interférents. La percolation d’eau sur MIP n’étant pas possible, une méthode de
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33

Tschen, Molina Francisco. "Synthesis of novel polyimides for the testing of structure-processing and property relations when used to form high temperature polymer matrices." Texas A&M University, 2005. http://hdl.handle.net/1969.1/5006.

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High-performance polymers have found an extreme range of applications in the aerospace industry. Composites which have polymers incorporated in them can usually meet the needs of the design, and are the ideal materials for aerospace applications due to their light weight, high strength, and radar transparency. Phenyl-ethynyl terminated oligomers, for example, have found many uses in the aerospace industry. Phenyl-ethynyl terminated oligomers (AFR-PEPA-N) exhibit glass-transition temperatures of up to 450°C. Unfortunately crystals form due to interactions of the oligomers. These crystals do
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34

Batista, Jorge Gabriel dos Santos. "Desenvolvimento de matrizes poliméricas biodegradáveis à base de quitosana e possíveis blendas como sistemas de liberação controlada de fármacos." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-18022016-145449/.

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De acordo com o conceito de sistemas de liberação controlada, o presente estudo foi baseado na utilização de polímeros hidrofílicos biocompatíveis, formadores de hidrogéis, para o desenvolvimento de matrizes na forma de filmes finos. Os polímeros utilizados para a formação das matrizes foram a quitosana proveniente das cascas de camarão, o amido de milho modificado e a poli(N-vinil-2-pirrolidona) - PVP. As matrizes foram reticuladas utilizando glutaraldeído. O fármaco escolhido para testar a capacidade de liberação dos dispositivos foi o anti-inflamatório não esteroidal (AINE) diclofenaco sódi
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35

Farenc, Mathilde. "Apports de la mobilité ionique couplée à la spectrométrie de masse pour l’analyse des matrices complexes." Thesis, Normandie, 2017. http://www.theses.fr/2017NORMR007/document.

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Le pétrole est une matrice complexe qui est raffinée afin d’être valorisée. Les fractions obtenues après raffinage sont variées et vont des composés légers (gaz, gazole …) aux composés lourds (distillats sous vide, bitumes...). La coupe naphta subit des traitements tels que le vapocraquage pour obtenir les oléfines qui sont ensuite polymérisés notamment grâce à la catalyse métallocène pour produire les polyoléfines. Ce travail de thèse a porté sur la caractérisation des distillats sous vide, des polyoléfines, et des catalyseurs métallocènes afin de mieux maitriser les différentes étapes du raf
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36

Nindiyasari, Fitriana [Verfasser], and Wolfgang [Akademischer Betreuer] Schmahl. "Crystallization of carbonate and sulfate minerals in organic matrices : examples from biomimetic and biological polymer-mineral composites / Fitriana Nindiyasari. Betreuer: Wolfgang Schmahl." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2015. http://d-nb.info/1073825868/34.

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37

Fernandes, Raquel Maria Trindade 1979. "Polímeros de impressão molecular para extração seletiva de drogas em matrizes biológicas e determinação por LC-MS /MS e MS/MS." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/248702.

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Orientador: Marcos Nogueira Eberlin<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Química<br>Made available in DSpace on 2018-08-22T00:48:57Z (GMT). No. of bitstreams: 1 Fernandes_RaquelMariaTrindade_D.pdf: 2391491 bytes, checksum: e0ced742cb6fd1e2732195078347fd99 (MD5) Previous issue date: 2012<br>Resumo: O presente trabalho descreve a utilização de polímeros de impressão molecular (MIP) no preparo de amostra para a extração seletiva de fármacos em matrizes biológicas com determinação por LC-MS/MS e MS/MS. Inicialmente foi sintetizado e caracterizado um MIP seletivo
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38

David, Hélène. "Etude de matrices polymères permettant la libération contrôlée d'agents actifs en agriculture : expérimentation et modélisation des transferts de matière." Saint-Etienne, 1989. http://www.theses.fr/1989STET4004.

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L'agent actif considéré a été l'éthoprophos, principe nématicide utilisé en agrochimie, mais dans un premier temps, l'aniline a été utilisé comme agent simulant. Les processus d'absorption et de désorption dans l'eau, ont été modélisés, dans le cas d'un granulé composé d'EVA pur, à l'aide d'une solution analytique de l'équation de Fick. Un modèle mathématique basé sur une méthode numérique a été construit pour décrire les transferts à travers un granulé composé par un noyau et une enveloppe
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39

Villarroel, Marquez Ariana A. "Multimodal sensing polymer transistors for cell and micro-organ monitoring." Thesis, Bordeaux, 2018. http://www.theses.fr/2018BORD0449.

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Le développement de nouveaux matériaux pour augmenter les performances des capteurs biologiques est très important lorsqu'on sait que les signaux électriques constituent la base des évènements biologiques fondamentaux comme l’activité cérébrale, le battement du coeur ou la sécrétion hormonale. Ces signaux cellulaires sont souvent enregistrés avec des sondes qui nécessitent des modifications génétiques ou chimiques. Cependant, des signaux intrinsèques pourraient être exploités directement. Des matrices de microélectrodes extracellulaires (MEAs) et des transistors électrochimiques à base de poly
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40

Charlier, Quentin. "Adhesion phenomena in thermoplastic composites based on acrylic matrices obtained by free radical polymerization." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI140.

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Ce mémoire de thèse s’intéresse aux phénomènes d’adhésion dans des composites à matrice thermoplastique obtenus par polymérisation radicalaire de mélanges réactifs. Après une courte introduction bibliographique sur les thématiques d’adhésion et d’adhérence, les propriétés générales des principaux éléments constitutifs des assemblages finaux sont étudiées séparément pour discuter de leur pertinence en vue d’une application composite. Une attention particulière est portée sur les systèmes réactifs acryliques à l’état liquide. L’étude se concentre ensuite sur les mécanismes réactionnels et l’évol
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41

Ye, Sheng Yin. "Valorisation de déchets composites à matrices polymériques renforcées de fibres de carbone par un procédé de vapo-thermolyse." Phd thesis, Toulouse, INPT, 2012. http://oatao.univ-toulouse.fr/16132/1/ye_partie_1_sur_3.pdf.

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Le composite à matrices polymériques renforcées de fibres de carbone (CFRP) est un matériau précieux en raison de ses excellentes propriétés mécaniques, légèreté et durabilité. Un gain important d’efficacité et une réduction des émissions de carbone peuvent être obtenus en remplaçant les pièces métalliques par les CFRPs dans l'industrie du transport. Toutefois, le recyclage de déchets CFRP est problématique, car le renfort de fibres de carbone est chimiquement lié à la matrice de résine réticulée. Néanmoins, la réutilisation de fibres de carbone couteuses rend le recyclage des CFRPs potentiell
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42

Rambeau, Joachim. "Statistiques d'extrêmes d'interfaces en croissance." Phd thesis, Université Paris Sud - Paris XI, 2011. http://tel.archives-ouvertes.fr/tel-00648731.

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Une interface est une zone de l'espace qui sépare deux régions possédant des propriétés physiques différentes. La plupart des interfaces de la nature résultent d'un processus de croissance, mêlant une composante aléatoire et une dynamique déterministe régie par les symétries du problème. Le résultat du processus de croissance est un objet présentant des corrélations à longue portée. Dans cette thèse, nous nous proposons d'étudier la statistique d'extrême de différents types d'interfaces. Une première motivation est de raffiner la compréhension géométrique de tels objets, via leur maximum. Une
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43

Trejo, O'Reilly José Antonio. "Synthèse d'agents de couplage, réactions de greffage en surface de fibres cellulosiques et propriétés d'interface fibres-matrices dans des matériaux composites à base de polystyrène." Grenoble INPG, 1997. http://www.theses.fr/1997INPG0019.

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L’objectif principal de ce travail est la modification chimique des fibres cellulosiques, afin d'améliorer leurs propriétés interfaciales lors de leur utilisation comme renforts dans des matériaux composites à matrice polymère organique (polystyrène). La synthèse d'un nouvel agent de couplage pour le système cellulose-polystyrène a été entreprise par la voie de copolymérisation cationique. Une caractérisation complète de cet agent de couplage a été faite par ftir, analyse élémentaire, #1h-nmr, calorimétrie différentielle (dsc) et chromatographie par exclusion stérique (ces). La réactivité de c
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Burnworth, Mark Gross. "Multifunctional Metallo-Supramolecular Matrials and Sensors." Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1299518885.

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45

Benethuilière, Thibaut. "Phénomènes physico-chimiques aux interfaces fibre/matrice dans des composites SMC structuraux : Du mouillage à l'adhésion." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI151.

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Nass, Kirk A. "Dielectric thermal analysis of polymeric matrices /." Thesis, Connect to this title online; UW restricted, 1989. http://hdl.handle.net/1773/9897.

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Mahmood, Nadia. "Novel immobilisation matrices for amperometric biosensors." Thesis, University of Huddersfield, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368306.

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Bradley, Jurron. "Consolidation of fiber-reinforced composities with thermoplastic matrices." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/11303.

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Pubellier, Pierre. "Influence de charges micrométriques sur le vieillissement de composites à matrice polymère." Thesis, Paris Est, 2017. http://www.theses.fr/2017PESC1177/document.

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La compréhension des phénomènes de vieillissement dans les élastomères réticulés chargés par des particules inorganiques est primordiale pour proposer un critère de fin de vie aux câbles électriques en usage au sein des centrales nucléaires. En effet, la gaine isolante de ces câbles met en jeu une matrice élastomère formulée par différents adjuvants et charges. Une quantité importante de particules inorganiques, du tri-hydrate d’aluminium (ATH), est usuellement introduite au sein de la matrice afin de lui conférer des propriétés anti-feu satisfaisantes. Les particules utilisées sont de taille
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Bonini, Céline. "Mise en évidence du rôle des interactions fibre/fibre et fibre/matrice dans des nanocomposites à renfort cellulosique et matrice apolaire (atactique et isotactique)." Université Joseph Fourier (Grenoble), 2000. http://www.theses.fr/2000GRE10195.

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La premiere partie de ce travail est consacree a la mise en uvre de renforts cellulosiques a base de whiskers. Les whiskers ont un facteur de forme eleve et un diametre nanometrique. Trois types de renfort differant par leur etat de dispersion et leur etat de surface ont ete elabores. Un systeme de whiskers disperses en solvant organique a ete mis au point grace a l'utilisation d'un tensioactif, les deux autres types de renfort consistent en des amas de whiskers nus ou greffes avec du polypropylene maleise. La deuxieme partie de ce travail porte sur la mise en uvre et la caracterisation mecani
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