Dissertations / Theses on the topic 'Polymer aqueous solution'
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Suzuki, Shinya. "Rheological Properties of Telechelic Associative Polymer in Aqueous Solution." 京都大学 (Kyoto University), 2015. http://hdl.handle.net/2433/200500.
Full textSidhu, Jagraj. "Equilibrium and structural studies of polymer / surfactant assemblies in aqueous solution." Thesis, University of Salford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.420463.
Full textPiluso, Pierre. "Développement de nouvelles formulations à base de polymères fonctionnels pour la mise au point de papiers techniques à propriétés spécifiques." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1090.
Full textThis PhD work dealt with the study of the acetalization reaction of polyvinyl alcohol (PVA) in aqueous medium by non-water soluble aldehydes bearing long alkyl chains and a vinyl end group such as 10-undecenal in specific conditions: in 8 wt% concentrated PVA solutions and with low acetalization degree (AD) from 0.33 mol% to 5.6 mol%. The main purpose of this grafting reaction is to obtain an activated surface on water casted polymer films. First, the impact of reactants concentrations, pH and reaction atmosphere on the acetalization kinetics was studied with a model compound first, pentane-2,4-diol, then with PVA. A new 1H NMR titration method allowed to carry out in situ quantification of the amount of reactant and of grafted aldehyde.On main objectives of this work was to obtain the highest DA while keeping PVA solutions viscosity as low as possible to keep a sufficiently low solution viscosity for a solvent cast process. The impact of AD by 10-undecenal on PVA solution organization and on the rheological properties of 8 wt% PVA aqueous solutions were investigated first until 1.85 mol% AD. A surface vinyl groups quantification method was developed through chemical labeling of the vinyl groups at the surface of solvent casted PVA films and 1H NMR titration of the labels. This method allowed the study of vinyl groups orientation toward the surface of acetalized PVA films until 1.48 mol% AD.The influence of PVA molar mass and of aldehyde alkyl chain length on acetalization kinetics and solutions viscosity was also studied. The use of a low molar mass polymer appeared to be an efficient way to obtain highly modified films while keeping a low 8 wt% acetalized PVA solution viscosity
Lower, Russell John. "The reactions of free and polymer-bound iron(III) porphyrins with tertiary-butyl hydroperoxide in aqueous solution." Thesis, University of York, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292604.
Full textOrpiszak, Martin. "Oxidation of cellulose to favour its dissolution in alkaline aqueous solution before regeneration into textile yarn." Thesis, KTH, Kemiteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-296556.
Full textThis master thesis is part of the Cellufil Project and aims to optimize the conditions for dissolving cellulose in aqueous sodium hydroxide solution followed by regeneration it in the form of a yarn. Previous works have shown that cellulose could be dissolved in soda at -10°C, but such conditions are not applicable at industrial scale. The objective of the present project is to work at room temperature. For that, carboxyl groups will be introduced in the cellulose chains in order to increase cellulose solubility in an alkaline aqueous medium, after this it is reprecipitated it in acidic solutions. Periodate makes it possible to oxidize the alcohol groups of cellulose on C2 and C3 positions by opening the glucose units to create two carbonyls functions (aldehyde) which can then be easily oxidized into carboxylic groups with overoxidation using sodium chlorite. A first part of the report is dedicated to the literature review on the subject, focusing on periodate oxidation. Then, a general protocol is proposed from the periodate oxidation to the regeneration of cellulose into yarn in sulfuric acid solutions. Several conditions for the periodate oxidation are tested, at different temperatures, with or without metal salts and with different oxidant dosages. The dissolution yield is directly linked to the carboxyl content introduced in the cellulose chains. The periodate oxidation also leads to the decrease of the cellulose degree of polymerization but cellulose DPv still remains sufficiently high in the case of the targeted COOH contents and for textile applications. The possible production of hydroxyl radicals during the periodate oxidation has been investigated by EPR/Spin-trapping. Only trials made with UV radiations showed OH°. Thus, cellulose depolymerization during periodate oxidation made in dark conditions is still not explained. Because the periodate consumption is low during the oxidation, its recycling is a key issue for an industrial application. It has been shown that the oxidation filtrates could be reused several times before total oxidant consumption. The quality of celluloses oxidized with recycled filtrates, especially their dissolving ability, should be checked.
Roure, Isabelle. "Rhéologie et dimensions des chaines du hyaluronane en solution." Université Joseph Fourier (Grenoble), 1997. http://www.theses.fr/1997GRE10227.
Full textWehbe, Elsy. "Magnetohydrodynamic of a non-newtonien fluid." Electronic Thesis or Diss., Pau, 2023. https://theses.hal.science/tel-04421152.
Full textMagnetohydrodynamics (MHD) is the discipline studying the behavior of conductive fluids of electricity when their movement is coupled to the electromagnetic field. Here we study in $Omega$, a possibly multi-connected two-dimensional domain, the existence of solutions for an MHD coupling an equation of polymer aqueous solution with Maxwell equation of electromagnetic. To solve our problem we need some estimations related to the Stokes-associated problem. One of the difficulties is the geometry of the domain and the nonlinear term of third order $(u cdot nabla)(u-alpha Delta u)$. On the other hand, it is shown an additional regularity in $W^{2,p}(O)$ for the magnetic field
Bataille, Isabelle. "Propriétés associatives en solution aqueuse de dérivés alkylés de carboxyméthylpullulanes." Rouen, 1998. http://www.theses.fr/1998ROUES013.
Full textAnim-Danso, Emmanuel. "Understanding the structure of water, ice, and aqueous solutions next to solid surfaces." University of Akron / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1441318237.
Full textBoutebba, Abdelkader. "Propriétés du succinoglycane : transition conformationnelle et gélification en milieu aqueux." Université Joseph Fourier (Grenoble ; 1971-2015), 1998. http://www.theses.fr/1998GRE10136.
Full textCatonné, Jean-Claude. "Contribution à l'étude du défaut de sélectivité présenté par les membranes échangeuses d'anions, dans le cadre de leurs applications au traitement électrochimique de régénération des solutions aqueuses d'acides minéraux." Paris 6, 1986. http://www.theses.fr/1986PA066030.
Full textMa, Yunwei. "A Thermal Switch from Thermoresponsive Polymer Aqueous Solutions." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/86837.
Full textMaster of Science
Controllable thermal conductivity (thermal switching) is very important to thermal management area and useful in a wide area of applications. Nowadays, mechanical thermal conductivity controller device suffers from large scale and slow transition speeds. To solve these problems, I tired the phase transition thermoresponsive polymers to create quick thermal switching because the thermal conductivity will change with the phase. Thermoresponsive polymers show sharp phase changes upon small changes in temperature. Such polymers are already widely used in biomedical-like applications, the thermal switch applications are not well-studied. In this work, I tested Poly(N-isopropylacrylamide) (the abbreviation is PNIPAM) as an example to show the quick thermal conductivity changing ability of thermoresponsive polymer when the transition was happened .I used a novel approach, called the TTG, transient thermal grating. It has easy setup and high sensitivity. The thermal conductivity switching ratio as high as 1.15 in transparent PNIPAM solutions after transition is observed. This work will give new opportunities to control thermal switches using the phase change of thermoresponsive material or abrupt other phase change material in general.
Oktar, Doganay Ceren. "Separation Of Chromate And Borate Anions By Polymer Enhanced Ultrafiltration From Aqueous Solutions Employing Specifically Tailored Polymers." Phd thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/3/12609178/index.pdf.
Full textBin, Manaf Ishak. "Ceramers from aqueous polymer solutions of poly(ethylene oxide)." Thesis, Loughborough University, 2001. https://dspace.lboro.ac.uk/2134/36083.
Full textWeaver, Jonathan Victor Mark. "Synthesis and aqueous solution properties of controlled-structure methacrylic polymers." Thesis, University of Sussex, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.399822.
Full textSwanton, Stephen W. "The physico-chemical characterisation of zirconium polymers in aqueous solution." Thesis, University of Bristol, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.481029.
Full textSeuring, Jan [Verfasser], and Seema [Akademischer Betreuer] Agarwal. "Polymers with Upper Critical Solution Temperature in Aqueous Solution / Jan Seuring. Betreuer: Seema Agarwal." Marburg : Philipps-Universität Marburg, 2012. http://d-nb.info/102807249X/34.
Full textHuang, Shuyue Huang. "COACERVATION AND PHASE BEHAVIOR OF AQUEOUS SOLUTIONS OF OPPOSITELY CHARGED POLYELECTROLYTES." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron152588540294971.
Full textAthavale, Advait D. "EXPERIMENTAL STUDY OF SATURATED NUCLEATE POOL BOILING IN AQUEOUS POLYMERIC SOLUTIONS." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1314758640.
Full textChamier, Jessica. "Photoelectrochemical detection of inorganic mercury in aqueous solutions." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/5213.
Full textENGLISH ABSTRACT: Due to the adverse human health effects associated with mercury (Hg) toxicity, an innovative method for inorganic mercury (Hg2+) determination in aqueous solutions was investigated. The method of Hg2+ determination involved the use of a Hg2+ selective chemosensor immobilised onto an indium tin oxide (ITO) coated electrode in a photoelectrochemical cell. Upon light activation and in the presence of Hg2+ the fluorescent chemosensor absorbed a photon, and charge separation would occur according to the nature of the semiconductive material coated onto the ITO substrate. The charge separators and semiconductors investigated were an n-type carrier TiO2, polyaniline (PANI) and copolymers of polyaniline and 2-bromoaniline (P[A-co-2- BrA]s) with different monomer ratios. The polymer and copolymer coated ITO working electrodes used in the Hg2+ sensitive photoelectrochemical cell were electrochemically evaluated. The results demonstrated that the ITO coated with PANI had superior conductive and semiconductive properties compared to ITO coated with P[A-co-2-BrA]s. The ITO glass substrates were coated with TiO2, PANI or P[A-co-2-BrA]s, followed by the fluorescent chemosensor, a rhodamine 6G derivative (RS). The electrodes were subsequently photoelectrochemically evaluated in a photoelectrochemical cell in the presence of Hg2+. The PANI-RS coated electrode behaved as a photocathode in the presence of Hg2+ under illumination. The PANI-RS photoresponse increased with increasing Hg2+ concentration in the range 10 to 150 μg L-1, with a limit of detection of 6 μg L-1. ITO coated with TiO2 (ITO/TiO2) followed by a composite of PANI and RS had a linear photoanodic response in the Hg2+ concentration range of 10 to 200 μg L-1 and a limit of detection of 5 μg L-1. ITO and ITO/TiO2 coated with the P[A-co-2-BrA]s and RS had considerably lower photoresponses towards Hg2+ in aqueous solutions compared to PANI-RS. The photoresponses decreased with increasing 2-bromoaniline content. The PANI and P[A-co-2-BrA]s coated ITO and ITO/TiO2 electrodes were then also coated with another rhodamine 6G derivative with a thiolactone moiety (RT). The PANI coated electrode yielded a photocathodic response in the Hg2+ concentration range 0.2 to 5 μg L-1. ITO coated with TiO2 had no photoresponse towards Hg2+ due to repulsive forces between TiO2 and the RT molecules. The photoresponses of the working photoelectrodes towards Hg2+ were further evaluated in a custom photoelectrochemical Hg2+ detector. The photoresponses of PANI-RS and PANI-RT gave qualitative results for the presence of Hg2+ in aqueous solutions in concentrations as low as 2 μg L-1.
AFRIKAANSE OPSOMMING: Weens die negatiewe gesondheids aspekte toegeskryf aan Hg2+ vergiftiging is ‘n nuwe innoveerende metode van Hg2+ deteksie in wateroplossings ondersoek. Die voorgestelde metode van Hg2+ deteksie behels die gebruik van ‘n Hg2+ selektiewe chemosensor geimmobiliseer op ITO elektrodes in ‘n fotoelektrochemiese sel. Met lig aktivering en in die teenwoordigheid van Hg2+, absorbeer die fluoreseerende chemosensor ‘n foton, gevolg deur lading skeiding, soos bepaal deur die aard van die halfgeleidende material wat op die ITO platjies bedek is. Die halfgeleiers wat ondersoek was, was TiO2, PANI en ko-polimere van PANI met 2-bromoanilien. Die polimeer en kopolimeer bedekte ITO werkende elektrodes wat in die Hg2+ sensitiewe fotoelektrochemiese sel gebruik is, is elektrochemies geevalueer. Daaruit is gevind dat ITO bedek met PANI superieure geleier en halfgeleier eienskappe het in vergelyking met die ITO wat bedek is met P[A-co-2-BrA] kopolimere. Die ITO glas plaatjies is bedek met TiO2, PANI en die P[A-co-2-BrA] kopolimere gevolg deur die fluoresseerende chemosensor, RS. Die elektrodes is onderskeidelik fotoelektrochemies getoets in ‘n fotoelektrochemiese sel in die teenwoordigheid van Hg2+. Die PANI-RS elektrode het soos ‘n fotokatode opgetree in die teewoordigheid van Hg2+ onder beligting. Die foto-reaksie van die PANI-RS elektrode teeonoor Hg2+ het liniêr toegeneem van 10 μg L-1 tot 150 μg.L-1 met ‘n limiet van deteksie op 6 μg L-1. ITO/TiO2 wat bedek is met ‘n samestelling van PANI en RS het ‘n fotoanodiese reaksie gehad teenoor Hg2+ in die liniêre reeks van 10 tot 200 μg L-1 met ‘n deteksie limiet van 5 μg L-1. ITO en ITO/TiO2 bedek met die P[A-co-2-BrA] kopolimere het heelwat laer fotoreaksies getoon teenoor Hg2+ in waterige oplossings Die fotoreaksie het afgeneem met toeneemende 2-bromoanilien inhoud van die kopolimeer. Die PANI en P[A-co-2-BrA] kopolimere bedekte ITO en ITO/TiO2 elektrodes is verder bedek met ‘n tweede rhodamine 6G afgeleide, RT. Die ITO/PANI bedek met RT het weer ‘n fotokatodiese reaksie gehad teenoor Hg2+ in die konsentrasie interval 0.2 tot 5 μg L-1. Die ITO/TiO2 elektrode bedek met die PANI-RT samestelling het geen fotoreaksie gehad teenoor Hg2+ weens afstotende kragte tussen die TiO2 and RT molekules. Die fotoreaksies van die verskeie werkende elektrodes teenoor Hg2+ is verder getoets in ‘n tuisgemaakte fotoelektrochemiese Hg2+ detektor. Die fotoreaksies van die PANIRS en PANI-RT samestellings op ITO het kwalitatiewe resultate gelewer vir die teenwoordigheid van Hg2+ in waterige oplossings in konsentrasies tot so laag soos 2 μg L-1.
Lanzaro, Alfredo. "Microscopic flows of aqueous polyacrylamide solutions : a quantitative study." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/microscopic-flows-of-semidilute-polymer-solutions-a-quantitative-study(0741b854-c4f8-4c6b-a3f3-0eb821969a6c).html.
Full textLee, Shun Yin. "The flocculation of charged particles in aqueous solutions by cationic polyelectrolytes." Thesis, University College London (University of London), 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322484.
Full textSaulzet, Sylvie Isabelle. "Formation of supramolecular structures in aqueous solution and their interactions with surfaces." Thesis, University of York, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301149.
Full textAriyo, Adeyemi Idowu. "Droplet Dynamics of Aqueous Polymeric Solutions on Solid Surfaces." University of Cincinnati / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1236212747.
Full textHerhut, Marcel [Verfasser]. "Thermodynamic Modeling of Protein Solubility in Aqueous Polymer/Salt Solutions / Marcel Herhut." München : Verlag Dr. Hut, 2016. http://d-nb.info/1084387050/34.
Full textSinn, Cornelia G. "Ion binding to polymers and lipid membranes in aqueous solutions Ionenbindung an Polymeren und Lipidmembranen in wässrigen Lösungen /." [S.l. : s.n.], 2004. http://pub.ub.uni-potsdam.de/2004/0077/sinn.pdf.
Full textSinn, Cornelia G. "Ion binding to polymers and lipid membranes in aqueous solutions : Ionenbindung an Polymeren und Lipidmembranen in wässrigen Lösungen." Phd thesis, Universität Potsdam, 2004. http://opus.kobv.de/ubp/volltexte/2005/186/.
Full textThe goal of this work was to study the binding of ions to polymers and lipid bilayer membranes in aqueous solutions. In the first part of this work, the influence of various inorganic salts and polyelectrolytes on the structure of water was studied using Isothermal Titration Calorimetry (ITC). The heat of dilution of the salts was used as a scale of water structure making and breaking of the ions. The heats of dilution could be attributed to the Hofmeister Series. Following this, the binding of Ca2+ to poly(sodium acrylate) (NaPAA) was studied. ITC and a Ca2+ Ion Selective Electrode were used to measure the reaction enthalpy and binding isotherm. Binding of Ca2+ ions to PAA, was found to be highly endothermic and therefore solely driven by entropy. We then compared the binding of ions to the one-dimensional PAA polymer chain to the binding to lipid vesicles with the same functional groups. As for the polymer, Ca2+ binding was found to be endothermic. Binding of calcium to the lipid bilayer was found to be weaker than to the polymer. In the context of these experiments, it was shown that Ca2+ not only binds to charged but also to zwitterionic lipid vesicles. Finally, we studied the interaction of two salts, KCl and NaCl, to a neutral polymer gel, PNIPAAM, and to the ionic polymer PAA. Combining calorimetry and a potassium selective electrode we observed that the ions interact with both polymers, whether containing charges or not.
Hua, Zan. "Synthetic nucleobase-containing acrylamide polymers and their applications in aqueous solutions." Thesis, University of Warwick, 2018. http://wrap.warwick.ac.uk/106792/.
Full textFuruya, Tsutomu. "Structure Formation and Physical Properties of Aqueous Polymer Solutions and Hydrogels with Additives." Kyoto University, 2019. http://hdl.handle.net/2433/236625.
Full textInaler, Ekrem. "Accelerated Aging Of Elastomers In Aqueous Media." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608119/index.pdf.
Full textTAKINAMI, PATRICIA Y. I. "Obtenção de biopolímeros de gelatina por radiação ionizante." reponame:Repositório Institucional do IPEN, 2014. http://repositorio.ipen.br:8080/xmlui/handle/123456789/23304.
Full textMade available in DSpace on 2015-01-21T10:28:15Z (GMT). No. of bitstreams: 0
Tese (Doutorado em Tecnologia Nuclear)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
Kalaikadal, Deepak Saagar. "Investigation of Bubble Dynamics in Pure Liquids and Aqueous Surfactant / Polymer Solutions Under Adiabatic and Diabatic Conditions." University of Cincinnati / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1525167893347615.
Full textLiu, Dan. "Removal of Emerging Contaminants from Aqueous Solutions by Using Polymeric Resins." Master's thesis, Temple University Libraries, 2011. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/149804.
Full textM.S.E.
The emerging contaminants (ECs) such as estrogen hormones, perfluorinated compounds (PFCs), bisphenol A (BPA) and 1, 4-dioxane have been detected in natural water bodies at a noticeable level worldwide. The presence of ECs in the aquatic environment can pose potential threats to aquatic organisms as well as human world. Ion-exchange is a highly efficient technology for the removal of heavy metal ions and natural organic materials (NOMs) due to the nature of exchanging similar charged ions. However, this technology has not been explored for removing ECs. In this study, four categories of ECs: estrogen hormones (12), perfluorinated compounds (10), bisphenol A and 1, 4-dioxane were used as model contaminants. The adsorption of each category of ECs onto various types of polymeric resins (MN100, MN200, A530E, A532E and C115) was investigated. The removal of ECs was tested under batch and column mode. The effects of pH, resin dosage, and contact time on the removal of ECs were studied in batch mode; isotherm and kinetics models were applied to fit the experimental data. Column experiments were conducted to verify the practicability of the polymeric resins. Adsorption results have shown that both MN100 and MN200 resins could efficiently remove estrogen hormones mixture (more than 95%), and bisphenol A (more than 80%) with the initial concentration of 100 ìg/L; A532E and A530E could remove perfuorinated compounds mixture (more than 99%) with the initial concentration of 100 ìg/L. As pH increased from 9 to 11, the adsorption capacity onto polymeric resins decreased dramatically for estrogen hormones such as 17á-ethinylestradiol, estriol, 17â-estradiol, 17á-estradiol, estrone, 17á-dihydroequilin and equilin as well as bisphenol A. The adsorption of estrogen hormones and bisphenol A onto MN100 and MN200 resins reached the equilibrium within 24 hours, whereas the adsorption of perfluorinated compounds onto A532E and A530E reached the equilibrium within 8 hours. It was also observed that the adsorption of PFCs largely depends on the C-C chain length. PFCs with longer chain yielded lower adsorption efficiency onto the ion-exchange resins A532E and A530E. Adding salinity decreased the first-order rate constants for the adsorption of bisphenol A onto MN100 and MN200 resins. Fixed-bed column experiment results with estrogen hormones mixtures confirmed that the polymeric resins were good candidates in the removal of estrogen hormones. Trimegestone was the first compound detected in the effluent in the column test while 17â-estradiol, 17á-estradiol were the last. 80% of the exhausted resins (MN100 and MN200) by bisphenol A were regenerated by using pure methanol as regeneration solution. Polymeric resins were not effectively removing 1, 4-dioxane from the aqueous solution.
Temple University--Theses
Bellot-Ayreault, Mathilde. "Assemblages réversibles dirigés par liaisons hydrogène en solution aqueuse." Paris 6, 2009. http://www.theses.fr/2009PA066614.
Full textHoskins, Alan Richard. "Mechanism of the dissolution of acrylonitrile based polymers in aqueous inorganic salt solutions." Thesis, University of Bradford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287107.
Full textDumetz, Andre C. "Protein interactions and phase behavior in aqueous solutions effects of salt, polymer, and organic additives /." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 284 p, 2008. http://proquest.umi.com/pqdweb?did=1456290971&sid=2&Fmt=2&clientId=8331&RQT=309&VName=PQD.
Full textPrincipal faculty advisor: Abraham M. Lenhoff, Dept. of Chemical Engineering, and Eric W. Kaler, College of Engineering . Includes bibliographical references.
Coche, Liliane. "Préparation et étude électrochimique d'électrodes modifiées par des films de polymères rédox : application à la catalyse électrochimique rédox." Grenoble 1, 1987. http://www.theses.fr/1987GRE10046.
Full textLumber, Darren. "Fluorescence studies of the dynamics of water soluble polymers in aqueous solutions and dispersions." Thesis, Lancaster University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340644.
Full textBiver, Claudine. "Formation d'amas dans les solutions de polymères hydrosolubles : influence sur le comportement en solution d'un polysaccharide végétal : le scléroglucane." Paris 6, 1986. http://www.theses.fr/1986PA066199.
Full textLiang, Ting. "Supramolecular polymers of triarylamines : studies in aqueous medium and covalent capture of their self-assemblies." Thesis, Strasbourg, 2017. http://www.theses.fr/2017STRAF044/document.
Full textBased on the unique directionality and reversibility of non-covalent interactions, supramolecular self-assembly works as an elegant methodology to construct multifunctional hierarchical architectures. Inspired by nature, where water provides a vital environment for biological process such as biomacromolecular folding, water-soluble supramolecular polymers have been prepared and studied so as to mimic related biological systems. On the other hand, owing to the dynamic nature of their non-covalent bonds, supramolecular polymers often lack mechanical robustness. Thus, cross-linking strategies have been developed in order to combine highly ordered molecular arrangement inherent to the sef-assembly and mechanical robustness of the covalent backbone, which might bee promising to reach functional materials for practical applications. In this thesis, we focus on well-designed triarylamine molecules which are known to self-assemble into supramolecular polymers with excellent physical properties, as discovered by our group. In particular, molecules studied in this manuscript are based on tris-amide triarylamine scaffold known to produce self-assemblies with metallic conductivity and self-healing behavior. First, we studied the self-assemblies of three novel tris-amide triarylamine derivatives decorated with either poly(ethylene glycol) (PEG), peptide or cyanine dyes side chains on the three amide positions in polar solvents, i.e. either water or methanol. Characterizations by various physico-chemical techniques (NMR, UV-Vis absorption, fluorescence, infrared spectroscopies, microscopies, scatterings) demonstrated the formation of fibrillar aggregates for all molecules in such polar environments. Overall, this study suggest that the triarylamine core act as the main driving force for the self-assembly into columnar aggregates while side chains ensure solubility in these solvents and/or favor the formation of chiral architectures. In a second study, we investigated the formation of tris-amide triarylamine supramolecular polymers decorated with norbornene and siloxane end side chains, which could be further used to freeze the self-assembled structures by ring opening metathesis polymerization and sol-gel methods, respectively. [...]
Mathur, Aditi. "Optimization of Polymer Enhanced Diafiltration system by studying copper removal from aqueous solutions using Lambda-carrageenan." Digital WPI, 2008. https://digitalcommons.wpi.edu/etd-theses/993.
Full textZHANG, JUNTAO. "EXPERIMENTAL AND COMPUTATIONAL STUDY OF NUCLEATE POOL BOILING HEAT TRANSFER IN AQUEOUS SURFACTANT AND POLYMER SOLUTIONS." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1077304904.
Full textSyrbe, Axel. "Polymer incompatibility in aqueous whey protein and polysaccharide solutions : phase separation phenomena and microgel particle formation /." Online version, 1997. http://bibpurl.oclc.org/web/29745.
Full textOkada, Yukinori. "Theoretical study of phase separation and thermoreversible gelation in aqueous solutions of temperature-sensitive polymers." 京都大学 (Kyoto University), 2007. http://hdl.handle.net/2433/50615.
Full textKyoto University (京都大学)
0048
新制・課程博士
博士(工学)
甲第13076号
工博第2818号
新制||工||1409(附属図書館)
UT51-2007-H349
京都大学大学院工学研究科高分子化学専攻
(主査)教授 田中 文彦, 教授 吉﨑 武尚, 教授 瀧川 敏算
学位規則第4条第1項該当
Ismail, Hani Khalil. "Novel battery chemistries using electrically conducting polymers synthesised from deep eutectic solvents and aqueous solutions." Thesis, University of Leicester, 2017. http://hdl.handle.net/2381/39875.
Full textKley, Marina [Verfasser]. "Silica particle formation from supersaturated aqueous solution and the influence of polymeric additives / Marina Kley." Paderborn : Universitätsbibliothek, 2017. http://d-nb.info/1137943998/34.
Full textParry, Alison. "The Synthesis and Characterisation of Peg-Peptide Romp Polymers and their Self Assembly Behaviour in Aqueous Solution." Thesis, University of Kent, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.499663.
Full textIslamoglu, Sezin. "Effect Of Ionic Strength On The Performance Of Polymer Enhanced Ultrafiltration In Heavy Metal Removal From Aqueous Solutions." Phd thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/3/12607832/index.pdf.
Full textRidell, Annika. "Characterisation of Aqueous Solutions, Liquid Crystals and Solid State of Non-ionic Polymers in Association with Amphiphiles and Drugs." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ-bibl. [distributör], 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-3607.
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