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Dissertations / Theses on the topic 'Nez – Polypes'

Author: Grafiati

Published: 4 June 2021

Last updated: 5 February 2022

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1

Watelet, Clotilde. "Immunologie de la polypose nasosinusienne." Nancy 1, 2001. https://hal.univ-lorraine.fr/tel-01746441.

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La polypose nasosinusienne est une entité clinique bien définie et communément rencontrée dans les pays industrialisés dont l'étiologie demeure obscure. Plusieurs hypothèses ont été avancées, allant de la théorie mécanique à l'implication du système immunitaire local. Il est admis à ce jour que le polype est le siège d'une réaction inflammatoire pérennisée par des facteurs cellulaires et solubles. Parmi ces facteurs, les éosinophiles sont présents de façon constante et prolongée au sein du tissu polypeux. Le micro-environnement local auquel participent les cytokines favoriserait leur accumulat

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2

Ducharme, Marie-Ève. "Influence de la polypose nasale et de l'âge sur le phénotyque de l'asthme." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27948/27948.pdf.

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3

Wang, Donghao. "Expression des antigènes HLA de classe II en relation avec l'infiltration lymphocytaire dans la muqueuse des voies aériennes : études sur les polypes du nez et les bronches transplantées." Paris 5, 1996. http://www.theses.fr/1996PA05CD02.

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L'infiltration lymphocytaire et l'expression des molécules HLA de classe II ont été étudiées dans la muqueuse des voies aériennes (épithélium et chorion) dans deux situations pathologiques pour lesquelles le système immunitaire est impliqué (polypose nasale et transplantation pulmonaire expérimentale). Tous les polypes étudiés (n=62) expriment les molécules HLA de classe I alors que 53,2% (n=33) expriment les molécules HLA de classe II (DR, DP et DQ seul ou associés). Dans le cas d'une polypose isolée (n=20), on observe l'expression des molécules HLA de classe II dans 40% des polypes. Lorsque

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4

Liang, Honghe. "Synthesis and Characterization of A New Catechol Derived Coupling Agent." University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1555671275779722.

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5

Lin, Yinan. "Electrospinning Polymer Fibers for Design and Fabrication of New Materials." University of Akron / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=akron1310997689.

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6

Mortuaire, Geoffrey. "Modulation des mécanismes inflammatoires impliquant les polynucléaires éosinophiles au cours de la polypose naso-sinusienne associée à l'asthme." Thesis, Lille 2, 2015. http://www.theses.fr/2015LIL2S010/document.

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Contexte : La polypose naso-sinusienne (PNS) est une maladie inflammatoire chronique multifactorielle dont l’étiologie reste imprécise. Les acteurs de l’immunité innée et acquise sont diversement impliqués avec un rôle central joué par l’éosinophile(EO). L’asthme associé à la PNS est un facteur de résistance à la corticothérapie constituant à l’heure actuelle la seule option thérapeutique médicale.Objectifs : Caractériser sur le plan histologique, biologique et cellulaire les patients atteints de PNS afin de définir des profils phénotypiques inflammatoires en relation avec l’asthme et de préci

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7

Chung, Taekwoong. "New Shape Memory Effects in Semicrystalline Polymeric Networks." Cleveland, Ohio : Case Western Reserve University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=case1238406068.

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Thesis (Ph.D.)--Case Western Reserve University, 2009<br>Abstract Department of Macromolecular Science and Engineering Title from PDF (viewed on 14 April 2009) Available online via the OhioLINK ETD Center

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8

Jenkins, Shawn Eric. "Synthesis and spinning of a new thermotropic liquid crystallinepolymers : characterization of fiber morphology and mechanical properties." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/8557.

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9

Yin, Hongfeng. "New methods in synthesis of cyclic oligoesters and cyclodepsipeptides." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1158668617.

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10

Mulyana, Rachmat. "A New Approach to Improve Dimensional Stability and Decrease Cycle Time in Injection Molding." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1366893478.

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11

Swanson, John Patrick. "A New Class of Biodegradable, Coacervate-Forming, Thermoresponsive Polyesters Based on N-Substituted Diols." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1460414310.

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12

Eroglu, Esra. "Synthesis And Characterization Of New Conducting Polymer- Nano Particle Composites." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615631/index.pdf.

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In this study, conjugated monomers containing fluorene units<br>2-(9,9-dihexyl-2-(thiophen-2-yl)-9H-fluoren-7-yl)thiophene (TFT) and 5-(9,9-dihexyl-2-(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-9H-fluoren-7-yl)-2,3dihydrothieno[3,4b ][1,4] dioxine (EFE) were synthesized on the basis of donor-acceptor-donor approach and their electrochemical polymerization were achieved via potential cycling. Optical and electrochemical properties of their corresponding polymers, poly(2-(9,9-dihexyl-2-(thiophen-2-yl)-9H-fluoren-7-yl)thiophene) PTFT, and poly(5-(9,9-dihexyl-2-(2,3-dihydrothieno[3,4-b][1,4]dioxin-

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13

Herbert, David Eric. "Synthesis, characterisation and reactivity of [1] - and [2]metallocenophanes of group 8 metals : new polymers and polymer topologies." Thesis, University of Bristol, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.503872.

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Metal-cyclopentadienyl bonds in moderately strained silicon-bridged [l]ferrocenophanes and dicarba[2]ferrocenophanes and highly strained dicarba[2]ruthenocenophanes react with diphosphines to form mixed-hapticity metallocycles through haptotropic reduction of one η⁵-,π-bound Cp to η¹, σ-coordination. The dependence of these reactions on the type of phosphine and degree of strain in the metallocenophane was probed. In one case, an unstrained photoadduct was found to undergo unprecedented ring-opening polymerisation (ROP) to produce polyferrocenylsilane (PFS).

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14

Bernard, Alexandre. "Green Polymers: Part 1: Polylactide Growth on Various Oxides: Towards New Materials Part 2: Poly(epoxides-co-anhydrides) from porphyrin catalysts." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1343059362.

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15

Wright, Darryn John. "New piezoelectric and pyroelectric polymers." Thesis, University of Leeds, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.437100.

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16

Graf, Tyler A. "Poly(disulfidediamines) : new biodegradable polymers." Diss., University of Iowa, 2012. https://ir.uiowa.edu/etd/3457.

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The turnovers of a gold(III) chloride catalyst were increased by 3,300% with the addition of several equivalents of (2,2,6,6-tretramethyl-piperidin-1-yl)oxy and catalytic amounts of copper(II) chloride. A three component coupling reaction between piperidine, phenylacetylene, and benzaldehyde yielded a propargylamine in quantitative conversions and isolated yields when gold(III) chloride was added in catalytic amounts, but the gold catalyst decomposed and had little to no reactivity when a second set of piperidine, phenylacetylene, and benzaldehyde were added after the reaction was complete. Th

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17

Bai, Shuying. "New photoactive polymers azobenzene elastomers." Thèse, Université de Sherbrooke, 2003. http://savoirs.usherbrooke.ca/handle/11143/5030.

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Azobenzene-containing elastomers have been synthesized for the first time. By free radical polymerization of methacrylate or acrylate-based monomers bearing an azobenzene moiety in solution with dissolved styrene-butadiene-styrene (SBS) triblock copolymer, azobenzene side-chain liquid crystalline polymer (SCLCP) was grafted on the rubbery polybutadiene (PB) central block of SBS. Similar to SBS, the resultant azobenzene SCLCP-grafted SBS was a thermoplastic elastomer, for which polystyrene (PS) cylindrical microdomains behave as physical cross-links. Three different azobenzene SCLCCs, differing

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18

Dai, Yiwei. "Synthesis of a New Zwitterionic Nickel(II) Catalyst and Its Application in the Copolymerization of Epoxide and CO." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1525875759884738.

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19

Young, Robert Anthony. "Preparation and characterisation of new organometallic polymers and encapsulated polymers." Thesis, University of Reading, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270273.

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20

Weinschenk, Joseph Iddings III. "The synthesis of new electro-optic polymers." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184284.

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This work involves the synthesis of two types of electro-optic monomers and their corresponding polymers. The first type of monomers contain the p-oxy-α-cyanocinnamate structure and were synthesized from ω-hydroxyalkoxy-substituted benzaldehydes and methyl cyanoacetate. These ω-hydroxy-α-cyanoester monomers show a high degree of electron delocalization. Copolyesters were synthesized by copolymerization of these monomers with methyl 12-hydroxydodecanoate by the standard two-stage, high-temperature polyesterification procedure. The copolyesters, incorporating dipolar units all pointing in the sa

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21

Luo, Yun. "Lanthanide-based coodination polymers : new ligands for new materials ?" Rennes, INSA, 2012. http://www.theses.fr/2012ISAR0004.

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Le Le but de ce sujet doctoral est la synthèse et la caractérisation de nouveaux polymères de coordination à base de lanthanides et présentant des propriétés de porosité ou de luminescence intéressantes. Nous avons synthétisé deux types d'échantillons : des monocristaux et des poudres microcristallines. Sur la base des données de diffraction des rayon-X par le monocristal, les structures cristallines ont été résolues. La stabilité thermique, la porosité et les propriétés de luminescence ont été étudiées grâce aux poudres microcristallines obtenues. Cinq systèmes de polymères de coordination on

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22

Ngaza, Nyashadzashe. "Thermal field-flow fractionation (Thermal FFF) and asymmetrical flow field-flow fractionation (AF4) as new tools for the analysis of block copolymers and their respective homopolymers." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95836.

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Thesis (MSc)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Polystyrene-block-poly(ethylene oxide) (PS-b-PEO) copolymers contain a hydrophilic PEO block and a hydrophobic PS block. PS and PEO have different affinities for most organic solvents and as a result, the PS-b-PEO copolymers are difficult to characterize in solution. In order to achieve a complete characterization of their molecular heterogeneity different techniques have been used. Recently FFF has become a cutting edge technology for polymer analysis because it possesses a number of advantages over conventional SEC and other l

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23

Liu, Yan. "New biodegradable polymers from renewable resources." Doctoral thesis, KTH, Polymer Technology, 2000. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-2952.

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<p>High molecular weight poly(ester-carbonate)s have beenprepared by a two-step chain-extension reaction performed onoligomeric αω-bishydroxyl-terminatedpoly(1,3-propylene succinate).αω-Bishydroxyl-terminated copolymeric oligomers of1,3-propylene succinate/1,4-cyclohexanedimethylene succinatewere obtained by thermal polycondensation of1,3-propanediol/1,4-cyclohexanedimethanol/succinic acidmixtures having different composition, and subsequently chainextended using phosgene as coupling agent, which leads toaliphatic/alicyclic copoly(ester-carbonate)s. New highmolecular weight amphiphilic block c

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24

Williams, Paul Allan. "Polyarylanthraquinoneimines: A new family of polymers." Diss., The University of Arizona, 1993. http://hdl.handle.net/10150/186235.

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This work describes a novel technique to prepare a family of polymers which contain a polyquinoneimine backbone. The polymerization utilized a condensation reaction which yielded novel substituted polyanilines. The polymer generating reaction, formation of the imine, was optimized to a quantitative yield via a model compound study. The model quinoneimine was prepared from anthraquinone and two equivalents aniline in the presence of excess of titanium tetrachloride and 1,4-diazabicyclo[2.2.2]octane. The X-ray crystal structure of the model compound from anthraquinone had indicated that the ring

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25

Choi, Kwok-wai Matthew, and 蔡國偉. "Development of new polymer supported reagents." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B29230524.

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26

Sestiaa, Lionel G. "New pathways in aromatic polymer chemistry." Thesis, University of Reading, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.402914.

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27

Shenton, Daniel Paul. "New enzyme entrapment stabilisation using polymers." Thesis, University of Strathclyde, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249012.

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28

Reid, James. "Synthesis of new cyanosiloxanes." Thesis, University of Aberdeen, 1989. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU553601.

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The aim of the work described in this thesis was to prepare polymers of structure I (SiMe2(CH2)yC(CN)2(CH2)ySiMe2O)n (y &'61 1, 2 or 3). Chapters 1 provides an introduction to the work. Methods for producing diadducts of malononitrile, which were central to the synthesis of I (y &'61 1, 2 or 3), are reported in Chapter 2. For the nucleophilic attack of allyl chloride by sodium, calcium and ammonium salts of malononitrile, polar aprotic solvents such as DMSO, sulpholane and liquid ammonia provided the best yields. During this work a GLC technique was developed for following the progress of the

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29

Kureppadathu, Raman Sumesh. "Carbon monoxide/heterocycle copolymerisation : new catalysts and new biodegradable polymers." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066575.

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Certains polymères synthétiques biodégradables ont montré des propriétés physico-chimiques aussi intéressantes que celles des plastiques issus du pétrole. Cependant, leur coût élevé dû au prix des matières premières ainsi qu’au faible nombre de voies de synthèse efficaces empêchent leur rentabilité. Une des alternatives serait le développement de méthodes de production viables économiquement par l’utilisation de catalyseurs productifs et de voies de synthèses à économie d’atomes. Ce manuscrit rassemble les travaux effectués durant la thèse sur une série de catalyseurs organométalliques hauteme

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30

Luruli, Nyambeni. "New synthetic and characterization strategies for polyolefins." Thesis, Stellenbosch : Stellenbosch University, 2007. http://hdl.handle.net/10019.1/21672.

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Thesis (PhD)--University of Stellenbosch, 2006.<br>ENGLISH ABSTRACT: Metalloxycarbene complexes [(CO)5M1=O(R)M2(Cl)L2] (M1 = Cr , W; M2 = Zr, Hf; L = Cp, Cp*) were synthesized from the reaction between anionic Fischer-type carbene complex salts [(CO)5M1=C(O)R][NEt4] and metallocene chlorides. The molecular and crystal structures of [(CO)5W=C(Me)OZr(Cp)2Cl], [(CO)5Cr=C(Me)OZr(Cp)2Cl] and [(CO)5W=C(Ph)OHf(Cl)Cp2] determined by X-ray methods, show a short Ccarbene-O and relatively long O-Zr and O-Hf separations. Metalloxycarbene complexes in the presence of MAO are active catalysts for homo

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31

Monreal, Jorge. "Polymer Characteristics of Polyelectrolyte Polypeptides." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6326.

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Polypeptides are polymerized chains of amino acids linked covalently through peptide bonds. Polyelectrolyte polypeptides are polypeptides with electrolyte repeating groups. Several amino acids contain ionizable side chains which result in charge distributions when dissolved in aqueous solutions. This dissertation is motivated by a desire to gain knowledge of polyelectrolyte polypeptides as recent advances in chemical synthesis of polypeptides have made possible the fabrication of designed polypeptides that do not naturally occur in nature. Potential applications of newly designed polypeptides

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32

Almonacil, Celine. "New constitutive equations for orientable polymer melts." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/11907.

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33

Río, Nieto Enrique del. "New polyurethanes from vegetable oil-based polyols." Doctoral thesis, Universitat Rovira i Virgili, 2011. http://hdl.handle.net/10803/31904.

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Los poliuretanos son uno de los materiales poliméricos más usados debido a sus buenas propiedades. Tradicionalmente, los poliuretanos se han sintetizado a partir de derivados del petróleo, sin embargo, teniendo en cuenta motivos de sostenibilidad, se hace necesario desarrollar tecnologías más ecológicas y económicamente viables. En esta tesis se han obtenido poliuretanos con buenas propiedades mecánicas y memoria de forma a partir de polioles basados en aceites vegetales, utilizando diferentes estrategias sintéticas: A partir de oleato de metilo epoxidado, mediante polimerización por apertura

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34

Hagan, A. J. "Synthesis of new low band gap polymers." Thesis, University of Cambridge, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.599826.

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The novel 3,4-bis-(3',7'-dimethyloctyloxy)-thiophene (171) was synthesised among others and with the route conditions being optimised. An Ethylenedioxythiophene (EDOT) derivative with solubilising alkyl chain was achieved. The literature routes are lengthy, slow and inefficient so new routes were explored to this very useful monomer family. One is very promising and was developed to the penultimate step. The monomer was functionalised to give the 2,5-distannyl derivative for organometallic controlled polymerisation, (218). Various poly(3,4-dialkoxythiophenes) were synthesised. A 2,5-dibromo-3,

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35

Ali, Monzur. "New synthetic approaches to prepare degradable polymers." Thesis, University College London (University of London), 2008. http://discovery.ucl.ac.uk/1444126/.

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This thesis is concerned with the synthesis of acid labile co-polymers. Two polymer systems were examined (1) polyacetals and (2) poly(ortho esters). As for poly(ortho esters), there is a need for better synthetic methods to prepare these polymers more easily without the need of stringent anhydrous conditions, with more broad structural variation, and in a more cost effective manner. Pendent functionalised polyacetals derived from PEG and tyrosine derived monomer diols have been prepared and their structure activity relationships determined. A smaller size alkyl chain on the tyrosine derived m

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36

Pierre, Viera Marie. "New water-soluble polymers for surface applications." Thesis, Durham University, 2000. http://etheses.dur.ac.uk/4205/.

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The main objective of this work, which was the synthesis of water-soluble polymers for scale formation inhibition on stainless steel surfaces, has been achieved. Following an introduction and discussion of the background of the work (Chapter 1), the synthesis and characterisation of various monomers, norbomenes with alkylene ether side chains terminated by trialkyl ammonium salts, is described (Chapter 2). These monomers were polymerised to give water-soluble materials, as described in Chapter 3. The nature of the polymers involved and the development of special techniques for their characteri

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37

Tiwari, Khyati R. "Polymer capsules fundamental studies and new concepts /." College Park, Md. : University of Maryland, 2008. http://hdl.handle.net/1903/8329.

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Thesis (M.S.) -- University of Maryland, College Park, 2008.<br>Thesis research directed by: Dept. of Chemical and Biomolecular Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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38

Luo, Miao. "Using Computer Simulation to Design New Polymers." Thesis, Clarkson University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10686044.

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<p> HNBR is a widely used oil resistant polymer with good tear strength. Due to these properties, HNBR is used in oil wells. However, harsh working environments require high equipment maintenance fees and HNBR will be degraded when contacted with H<sub>2</sub>S. This study aims to improve the mechanical properties and H<sub>2</sub>S resistance of HNBR through molecular dynamics simulations. Some of the simulation results are compared with experimental results and literature values. In this study, the solubility parameters and densities of pure HNBR with varying acrylonitrile content, FKM and t

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39

Bossi, Alessandra Maria. "New materials for separation and sensing." Thesis, Cranfield University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269533.

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40

Ho-Hune, Patricia. "New systems for heterogeneous catalytic epoxidation." Thesis, Loughborough University, 2005. https://dspace.lboro.ac.uk/2134/35643.

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Epoxides are very useful key intermediates in the construction of synthetically challenging molecules. Owing to their strategic importance in organic synthesis, novel polymer-supported iminium salts were investigated for the catalytic oxidation of unfunctionalised alkenes. A solid-phase methodology was initiated and then developed for the evaluation of several heterogeneous catalysts. In an initial approach, immobilised iminium salts were prepared by condensation of 2-(bromoethyl)benzaldehyde with commercially available aminomethyl resins. These materials were shown to be able to successfully

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41

Almonacil, Celine. "New directions for high performance materials via post-extrusion solid state polymerization." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/11913.

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42

Brouns, Richard Allan. "A new dual-stage multicomponent thermosetting polymer system /." Thesis, Connect to this title online; UW restricted, 1993. http://hdl.handle.net/1773/9864.

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43

Gao, Chunping. "New methods for cross-linking of high performance polymers." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=29026.

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A new simple method for the synthesis of novel hydroxy substituted 1,2-diphenylcyclopropanes was developed. Mono and dihydroxysubstituted-1,2-diphenylcyclopropanes were prepared by base-catalyzed decomposition of the corresponding hydroxy substituted 3,5-diphenyl-2-pyrazolines which were the products of the reaction between hydroxychalcones and hydrazine monohydrate. Some biphenols and activated aromatic difluorides containing the ethylene, chalcone and pyrazoline groups were prepared by novel, simple methods employing readily available starting materials and reagents. The monomers were used t

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44

Wang, Xinting. "NEW SYSTEMS FROM THE FORCED ASSEMBLY CO-EXTRUSION PROCESS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=case1607104088439343.

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45

Omiccioli, Nicola. "Evaluation of antioxidant properties of new active polymers." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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Active packaging by radical scavenging of the free radical species involved in the biochemical degradation of food is an innovative way to extend the shelf-life of a food product. Current drivers such as consumer’s demand for safer, “healthier,” and higher-quality foods have led to the development of new packaging materials which contain natural extracts. This kind of materials could act as free radical scavengers and thus permit to avoid the use of synthetic and dangerous for the human health antioxidant. In this work, multilayer polymeric materials of different types containing natural ext

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46

Clever, Hester Ann. "New aspects of tetramethylene initiation in polymer chemistry." Diss., The University of Arizona, 1990. http://hdl.handle.net/10150/184988.

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Hall's Bond Forming Initiation Theory, derived for [2 + 2] systems, was applied to [4 + 2] systems. Polymerizable electron-rich and electron-poor olefins were reacted to obtain evidence for reactive intermediates using polymerization as a trap. A diradical intermediate was successfully trapped in reactions of 1-methoxy-1,3-butadiene with methyl 2,2-dicyanoacrylate, dimethyl cyanofumarate, trimethyl ethylenetricarboxylate, maleic anhydride and acrylonitrile. Diradical intermediates were also trapped in reactions of isoprene, 1,3-butadiene, 2,3-dimethyl-1,3-butadiene, cis and trans-piperylene an

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47

Boday, Dylan Joseph. "SILICA AEROGEL-POLYMER NANOCOMPOSITES AND NEW NANOPARTICLE SYNTHESES." Diss., The University of Arizona, 2009. http://hdl.handle.net/10150/194891.

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Aerogels are extremely high surface area, low density materials with applications including thermal and acoustic insulators, radiation detectors and cometary dust particle traps. However, their low density and aggregate structure makes them extremely fragile and practically impossible to machine or handle without breaking. This has led to the development of aerogel composites with enhanced mechanical properties through the addition of polymers or surface modifiers. To date, attempts to strengthen aerogels have come with significant increases in density and processing time. Here I will desc

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Magnusson, Johannes Pall. "Smart" polymer therapeutics towards new architectures and applications." Thesis, University of Nottingham, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.523592.

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Harismah, Kun. "Development of New Carbazole Polymers for LED Applications." Thesis, University of Sheffield, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.500291.

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50

Dutta, Argha. "New inexpensive polymer supported reagents based on polysiloxanes." Thesis, Cardiff University, 2005. http://orca.cf.ac.uk/56010/.

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Abstract:

Using polymethylhydrosiloxane (PMHS) 1, a commercially available free flowing liquid, the formation of crosslinked polymers 3 using a crosslinker 2 and a variety of catalysts such as Wilkinson's, TBAF and diethylhydroxylamine to aid this process are reported. The application of these polymers to the reduction of acetophenone is also discussed. Secondly, crosslinked PMHS resins incorporating DMAP 4 and pyridine derivatives 5 were developed as scavengers. Both resins were found to successfully scavenge benzyl bromide. Studies using various substrates are discussed along with resin compositions g

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