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Relevant bibliographies by topics / Polymeric composition / Dissertations / Theses

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Dissertations / Theses on the topic 'Polymeric composition'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Coburn, Kimberly Mary. "Effects of Extracellular Polymeric Substance Composition on Bacteria Disinfection by Monochloramine." University of Toledo / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1353016531.

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2

Basson, Nicolaas Christiaan. "The effect of molecular composition on the properties of polyolefin-wood composites." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/80222.

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Thesis (PhD)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: Polymer composites, and in particular wood-polymer composites have become commercially and environmentally important materials. Studies in polyolefin-wood composites have mostly focused on polypropylene (PP) and polyethylene (PE). To our knowledge, no study has been undertaken on advancing impact polypropylene copolymer (IPPC)-wood composites as a suitable alternative to using PP and PE. IPPC have proven to be a suitable alternative to PP at low temperatures to improve impact resistance for manufactured polymer products, an

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3

Sharma, P. "Computational studies on the effect of composition and interactions on structure, dynamics and gas adsorption properties of polymeric materials ." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2018. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/4535.

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Properties of functional polymeric materials can be tuned by either varying the composition of a multi-component system, or by chemical modification of the constituents. Thus it is extremely crucial to develop a molecular level understanding of these interactions and the role of composition that manifests into desired functional properties. The present thesis involves computer simulation studies of various polymeric systems investigating the effect of composition and interactions on the polymer properties at a molecular level. The thesis has been classified into three major parts based o

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4

Salisbury, Stephanie Kara. "Dynamics and Composition of the Extracellular Polymeric Substances Produced by Benthic Microalgae: An in Situ 13C and 15N Approach." W&M ScholarWorks, 2011. https://scholarworks.wm.edu/etd/1539617901.

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The land-‐ocean margin is characterized by a shallow water column, which allows light to reach the benthos and supports a diverse community of benthic autotrophs. One group of benthic autotrophs, consisting of benthic diatoms, cyanobacteria and other photosynthetic microorganisms living near the sediment surface (i.e., benthic microalgae) accounts for a substantial amount of this primary production. Benthic microalgae are also tightly coupled to carbon and nutrient cycling processes carried out by the sediment bacterial community. Benthic microalgae exude complex biopolymers, called extracell

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5

Breslavets, N., R. Bilobrov, and L. Saliya. "The improvement bonding in metal-polymer system through the development of new polymer coating varnish "Sinma-M+Y"." Thesis, Sumy State University, 2016. http://essuir.sumdu.edu.ua/handle/123456789/48379.

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Polymeric composition adhesive system, which allows to keep facing materials to metal surface of denture and masking color of metal. Review of national and foreign sources for investigate of coating varnishes are used to create adhesive layer, and thus formation of strong bond between metal and facing material doesn’t give a full picture of chemical composition and physical and mechanical characteristics of these materials. The purpose of research - improving the adhesive bond in metal-polymer system by creating a new material with meets contemporary requirements.

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6

Michalowski, Witold Dariusz [Verfasser], Hans-Curt [Akademischer Betreuer] Flemming, and Ulrich [Akademischer Betreuer] Szewzyk. "Composition, dynamics and function of extracellular polymeric substances in drinking-water biofilms / Witold Dariusz Michalowski. Gutachter: Ulrich Szewzyk. Betreuer: Hans-Curt Flemming." Duisburg, 2012. http://d-nb.info/1028324421/34.

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7

Zeng, Liming. "Étude de la composition macromoléculaire du raisin et des vins : impact sur la qualité sensorielle." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0302/document.

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Les tanins condensés et les pigments polymérisés sont deux grandes familles de macromolécules qui jouent des rôles importants sur la qualité organoleptique du vin rouge. Leurs structures oligo-polymériques ainsi que leurs évolutions durant le vieillissement du vin rouge sont mal connues. L’objectif de cette étude est d’approfondir notre connaissance sur leurs structures et leurs évolutions durant le vieillissement. Durant ce travail, nous avons caractérisé, pour la première fois dans le règne végétal, une nouvelle sous-famille de tanins condensés nommés : les tanins condensés couronnes, qui on

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8

Lalloz, Faivre Augustine. "Administration de substances actives dans la peau : rôle de la composition hydrophile de nanoparticules polymériques." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSE1023/document.

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La conception de nanoparticules (NPs) polymériques pour le transport de médicaments dans la peau repose sur la compréhension du rôle de leurs compositions chimiques sur leurs interactions avec la peau, notamment la peau pathologique. Ce travail s'est attaché à définir le rôle de la composante hydrophile des NPs sur l'administration cutanée d'un principe actif lipophile modèle (cholécalciférol). Il a été remarqué que la composition hydrophile de polymères amphiphiles à base de PLA conditionnait les propriétés physicochimiques des NPs, notamment la taille, la surface, et la structure, tout comme

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9

Jousseaume, Vincent. "Etude comparative des proprietes de transport de polymeres conducteurs electroniques : melanges polyaniline - polystyrene." Nantes, 1998. http://www.theses.fr/1998NANT2074.

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La polyaniline (pani) et les melanges polyaniline - polymere isolant sont des materiaux prometteurs pour une utilisation dans la realisation de composants electroniques (transistors a effet de champ, diodes electroluminescentes) ou pour le blindage electromagnetique. Dans ce travail, nous avons prepare des melanges polyaniline - polystyrene (pani-pst) en utilisant la methode de codissolution qui consiste a melanger les deux polymeres en solution. Cette methode conduit a l'obtention d'echantillons ayant un tres faible seuil de percolation (<1%). L'etude physico-chimique des films de polyaniline

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10

Naidoo, Preloshni. "A comparative analysis of the chemical composition of linear low density polyethylene polymers synthesised with 1- hexene comonomer under different catalytic conditions." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/80272.

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Thesis (MSc)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: A comparative study of the chemical composition of linear low density polyethylene polymers, synthesised with 1 - hexene as comonomer was conducted. Catalyst trials were conducted on the linear low density 1 - hexene polymer grade material to evaluate alternative catalysts. A comparative analysis was performed in order to investigate if the samples synthesised under catalyst trial conditions showed any significant differences in terms of crystallinity and mechanical properties with the reference sample that was synthesised using

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11

Hill, Jacob A. Hill. "SURFACE LAYER MATRIX-ASSISTED LASER DESORPTION IONIZATION TIME OF FLIGHT MASS SPECTROMETRY (SL-MALDI-TOF MS) ANALYSIS OF POLYMER BLEND SURFACE COMPOSITION." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1514479406062149.

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12

Tuladhar, Sachetan Man. "Charge transport in conjugated polymers and polymer/fullerene Blends : influence of chemical structure, morphology and blend composition." Thesis, Imperial College London, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.445260.

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13

Ashina, Yulia. "Raman transduction and unconventional membrane compositions for polymeric sensors." Thesis, Lille 1, 2018. http://www.theses.fr/2018LIL1R033/document.

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Au cours des dernières années, le nombre de travaux scientifiques portant sur le développement de capteurs chimiques simples a significativement augmenté. Les études sont principalement orientées vers la recherche de nouveaux schémas de transduction du signal et vers le développement de capteurs dont les propriétés peuvent être programmées. Trois approches originales pour la transduction du signal des membranes polymères des capteurs potentiométriques sont présentées. La première partie est consacrée à la description d’une nouvelle technique pour la détection indirecte de cations métalliques a

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14

Ashina, Yulia. "Raman transduction and unconventional membrane compositions for polymeric sensors." Electronic Thesis or Diss., Université de Lille (2018-2021), 2018. http://www.theses.fr/2018LILUR033.

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Au cours des dernières années, le nombre de travaux scientifiques portant sur le développement de capteurs chimiques simples a significativement augmenté. Les études sont principalement orientées vers la recherche de nouveaux schémas de transduction du signal et vers le développement de capteurs dont les propriétés peuvent être programmées. Trois approches originales pour la transduction du signal des membranes polymères des capteurs potentiométriques sont présentées. La première partie est consacrée à la description d’une nouvelle technique pour la détection indirecte de cations métalliques a

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15

Zhang, Wei. "Design, synthesis and self-assembly of giant molecules with precisely controlled heterogeneities, including composition, functionality, topology and sequence." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1476969792111862.

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16

Hopkins, Ian. "Surface composition profiles in some polymer mixtures." Thesis, Durham University, 1994. http://etheses.dur.ac.uk/5518/.

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The surface composition of selected polymer mixtures has been studied to a depth of circa 4000Å with a resolution of up to l0Å using neutron reflectometry (NR) and nuclear reaction analysis (NRA). The effective interaction parameters, X, of several blends have been measured as a function of both composition and temperature, using Small Angle Neutron Scattering (SANS) and the incompressible random phase approximation, in order to understand the surface segregation behaviour of the polymer blends. No surface segregation was observed in annealed blends of syndiotactic poly (methyl methacrylate) (

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17

Wang, Zhao. "Synthesis of Polyhedral Oligomeric Silsesquioxane(POSS)-Based Shape Amphiphiles with Two Polymeric Tails of Symmetric or Asymmetric Compositions." University of Akron / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1366825911.

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18

Labenski, Glen David. "The effect of polymer composition and structure on the photo-Fries rearrangement /." Online version of thesis, 2008. http://hdl.handle.net/1850/7656.

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19

Solouki, Bonab Vahab. "Polyurethane (PU) Nanocomposites; Interplay of Composition, Morphology, and Properties." Case Western Reserve University School of Graduate Studies / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case1542634359353501.

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20

Shebani, Anour N. "The effect of wood composition and compatibilisers on polyethylene/wood fibre composites." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/5270.

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Thesis (PhD (Chemistry and Polymer Science))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: The effects of the macromolecular composition and content of different wood species on the properties of wood-polymer composites (WPCs) achieved when using poly(vinyl alcohol-co-ethylene) (EVOH) as a compatibiliser and linear low density polyethylene (LLDPE) as a matrix, were investigated. Four wood different species (A. cyclops (acacia), E. grandis (eucalyptus), P. radiata (pine) and Q. alba (oak)) with different macromolecular composition and contents and average particle lengths were u

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21

Usov, Denys. "Switching of surface composition and morphology of binary polymer brushes." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2004. http://nbn-resolving.de/urn:nbn:de:swb:14-1085656171515-51343.

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Switching of surface composition and morphology of binary polymer brushes in response to changes in solvent selectivity, heating above glass transition temperatures, and contact with a rubbery stamp was studied. The binary brushes: polystyrene/poly(2-vinyl pyridine) (PS/P2VP), poly(styrene-co-2,3,4,5,6-pentafluorostyrene)/poly(methyl (meth)acrylate) (PSF/P(M)MA), and PS/PMMA were synthesized via two-step surface-initiated radical polymerization. Wetting experiments show that switching of brushes? surface composition upon exposure to solvents of various thermodynamic quality occurs faster than

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22

Usov, Denys. "Switching of surface composition and morphology of binary polymer brushes." Doctoral thesis, Technische Universität Dresden, 2003. https://tud.qucosa.de/id/qucosa%3A24340.

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Switching of surface composition and morphology of binary polymer brushes in response to changes in solvent selectivity, heating above glass transition temperatures, and contact with a rubbery stamp was studied. The binary brushes: polystyrene/poly(2-vinyl pyridine) (PS/P2VP), poly(styrene-co-2,3,4,5,6-pentafluorostyrene)/poly(methyl (meth)acrylate) (PSF/P(M)MA), and PS/PMMA were synthesized via two-step surface-initiated radical polymerization. Wetting experiments show that switching of brushes? surface composition upon exposure to solvents of various thermodynamic quality occurs faster than

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23

Fekkai, Zakia. "Dimensional stability of biaxially drawn PET : effects of processing and material composition." Thesis, Loughborough University, 1991. https://dspace.lboro.ac.uk/2134/32890.

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Biaxial orientation of PET for the production of high strength films for demanding applications, such as slot liners for electrical motors and sound and audio visual tapes, is a well established process. More recently biaxial orientation of PET has been utilised for the production of carbonated beverages, bottles and cans for processed food packaging to achieve high strength and impact resistance. These containers, however, are not suitable for hot filling and high temperature sterilization purposes owing to the lack of dimensional stability.

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24

Guney, Aysun. "Composition-property Relationship Of Pcl Based Polyurethanes." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614253/index.pdf.

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The desirable properties of polyurethanes (PUs) such as mechanical flexibility associated with chemical versatility make these polymers attractive in the development of biomedical devices. In this study, various segmented polyurethanes were synthesized through polymerization reactions between polycaprolactone (PCL) diol or triol and excess hexamethylene diisocyanate (HDI) with varying NCO/OH ratios and the effect of composition on the properties of the resultant polyurethane films were examined. Initially, isocyanate term

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25

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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26

Yoon, Kwansik. "The effect of the electrode composition on electron transfer through an electroactive monolayer." Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=771.

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Thesis (M.S.)--West Virginia University, 1999.<br>Title from document title page. Document formatted into pages; contains xi, 96 p. : ill. (some col.) Includes abstract. Includes bibliographical references.

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27

Faria, Maria Cândida Magalhães de [UNESP]. "Estudo das intempéries nas propriedades mecânicas e viscoelásticas de compósitos PPS/Fibras de carbono e EPOXI/Fibras de carbono de uso aeronaútico." Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/103726.

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Made available in DSpace on 2014-06-11T19:32:50Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-10-03Bitstream added on 2014-06-13T21:04:59Z : No. of bitstreams: 1 faria_mcm_dr_guara.pdf: 2691005 bytes, checksum: a507bf57757d62ae4ad112e4aeb41c2e (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Durante o século XX os materiais compósitos estruturais receberam especial atenção dos pesquisadores, o que levou a uma rápida evolução tecnológica acarretando uma intensa procura e posterior obtenção de materiais com características mecânicas cada vez mais elevada

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28

Milanese, Andressa Cecília [UNESP]. "Processamento e caracterização de compósito fibra de sisal/resina epóxi via RTM." Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/115652.

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Made available in DSpace on 2015-03-03T11:52:25Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-11-26Bitstream added on 2015-03-03T12:07:17Z : No. of bitstreams: 1 000706554.pdf: 2183734 bytes, checksum: 9c69fb93433a041adafed9efedc0ee91 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>O desenvolvimento de compósitos formados por matrizes poliméricas e reforçados com fibras naturais ganhou notável interesse na pesquisa, a partir da década de 90. A elevada demanda por compósitos, aliada à regulamentação das leis ambientais, tornou indispensável o aperfeiço

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29

Zhang, Ruimeng. "Design, Synthesis, and Self-assembly of Dendritic Rod-like Molecules with Precisely Controlled Compositions, Interactions, and Topologies." University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron157231026041301.

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30

Klose, Carolin [Verfasser], Stefan [Akademischer Betreuer] Glunz, and Simon [Akademischer Betreuer] Thiele. "Novel polymer electrolyte membrane compositions for electrolysis and fuel cell systems." Freiburg : Universität, 2020. http://d-nb.info/1208148036/34.

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31

Pepper, Stephen T. "The interaction of fillers and lubricants in rigid PVC compositions." Thesis, Loughborough University, 1988. https://dspace.lboro.ac.uk/2134/13708.

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The physical properties of rigid PVC products can be related to formulation, preblending and processing characteristics. A fuller understanding between these interrelations involves investigation of a complete processing system from powder additives to end product. A knowledge of these relationships can lead to a optimisation of formulation aspects and processing conditions. Fillers and lubricants have often been incorporated into PVC compounds on a empirical basis, however in this investigation a wide range of compositions were carefully chosen and included a calcium carbonate filler at level

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32

Lally, Sarah Joanne. "pH-responsive hydrogel composites containing microgels : restoring intervertebral disc height through polymer composition." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/phresponsive-hydrogel-composites-containing-microgels-restoring-intervertebral-disc-height-through-polymer-composition(594cac41-952a-46a5-bad6-632d32cad3b1).html.

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This thesis presents a study into the use of microgels to restore degenerated intervertebral discs (IVDs). This was undertaken using a pH-triggered microgel which was able to form self-supporting gels through an increase in pH. The microgels were based on the poly(A/MAA/X) formulation, where MAA is methacrylic acid and A is the structural and X is the crosslinking monomer. The microgel particles were also used to construct composite poly(ethylene glycol) dimethacrylate (PEGD) hydrogels. The properties of the microgels and the composite hydrogels were then investigated. Microgel particles were

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33

Lei, Yu-Guo. "Surface morphology and chemical composition of polymers studied by AFM, XPS and ToF-SIMS /." View Abstract or Full-Text, 2002. http://library.ust.hk/cgi/db/thesis.pl?CENG%202002%20LEI.

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34

Ribeiro, Simone Rodrigues. "Compositos de PVC com refugos de 'release liners"." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/267103.

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Orientador: Leila Peres<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica<br>Made available in DSpace on 2018-08-14T23:42:14Z (GMT). No. of bitstreams: 1 Ribeiro_SimoneRodrigues_M.pdf: 4316157 bytes, checksum: d8b454c7552b53ef41d86b66929ff0b3 (MD5) Previous issue date: 2009<br>Resumo: Compósitos poliméricos são materiais que têm atraído cada vez maior atenção dos cientistas, assim como da indústria. "Release liners" são materiais com propriedade antiaderente utilizados para proteger a(s) face(s) adesiva(s) de uma fita adesiva, substrato e rótulos

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35

Teixeira, Guilhermina Ferreira [UNESP]. "Otimização do processamento de partículas lead-free para aplicação em compósitos polímero/cerâmica com propriedades piezoelétrica e fotoluminescente." Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/124539.

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Made available in DSpace on 2015-07-13T12:10:33Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-03-20. Added 1 bitstream(s) on 2015-07-13T12:24:07Z : No. of bitstreams: 1 000835959_20170320.pdf: 339379 bytes, checksum: a5b2b1af9195b68012c616f718fe6b2c (MD5) Bitstreams deleted on 2017-03-24T12:04:45Z: 000835959_20170320.pdf,. Added 1 bitstream(s) on 2017-03-24T12:05:38Z : No. of bitstreams: 1 000835959.pdf: 7570828 bytes, checksum: 5ab972a5285c1f8bb3b327316f5a58af (MD5)<br>O principal objetivo deste trabalho foi a otimização do processo para a obtenção de partículas lead-free de NaNbO

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Karwa, Anupama. "Printing studies with conductive inks and exploration of new conducting polymer compositions /." Link to online version, 2006. https://ritdml.rit.edu/dspace/handle/1850/1318.

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37

Fadda, Hala Muhammad. "Probing physiological media composition and polymer-plasticizer interactions on dissolution of pH-responsive systems." Thesis, University College London (University of London), 2007. http://discovery.ucl.ac.uk/10041402/.

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This study explored the in vitro dissolution of pH-responsive methacrylic acid methylmethacrylate polymer coated dosage forms, in particular Eudragit S coated 5-aminosalicylic acid (5-ASA) tablets for ileo-colonic delivery. Ionic parameters that influence the in vitro dissolution were identified as ionic strength, pKa of the buffer and its concentration. Physiological bicarbonate offers (Hanks and Krebs) were explored as potential dissolution media as they are more presentative of the ionic and buffer composition of small intestinal fluids. In comparison to impendial phosphate buffers, they we

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38

Kuktaitė, Ramunė. "Protein quality in wheat : changes in protein polymer composition during grain development and dough processing /." Alnarp : Dept. of Crop Science, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/a499.pdf.

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39

Zebin, Su. "DESIGN, SYNTHESIS, AND SELF-ASSEMBLY OF GIANT SHAPE AMPHIPHILES WITH PRECISELY CONTROLLED COMPOSITIONS, INTERACTIONS, AND GEOMETRIES VIA A MOLECULAR LEGO APPROACH." University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1572887748730283.

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40

Cook, Clinton John. "Compositional gradients in photopolymer films utilizing kinetic driving forces." Diss., University of Iowa, 2014. https://ir.uiowa.edu/etd/1308.

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Independent control of the surface and bulk properties is advantageous for many applications such as adhesives, release coatings, and antimicrobial films. Traditional methods for achieving independent control typically require multiple processing steps such as wet-on-wet or wet-on-dry coating methods. Independent control over the surface properties can achieved in a single step utilizing the temporal and spatial control inherent to photopolymerization. Specifically, a co-photopolymerization of monomers with different reactivities in the presence of a light gradient is capable of producing a po

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41

Berggren, Frida. "Development of an Expancel Product through Optimisation of Polymer Composition and the Suspension Stabilising System." Thesis, KTH, Skolan för kemivetenskap (CHE), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-158864.

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Thermally expandable microspheres are spherical particles around 5-‐40 µm in size, consisting of a polymeric shell in which a blowing agent has been encapsulated. The microspheres are expanded upon heating, resulting in a particularly low density. Microspheres are therefore suitable to use as light weight filler or as foaming agent. AkzoNobel is world leading in the production of expandable microspheres, which are commercialised under the name Expancel. Sustainability is a great focus at AkzoNobel and two issues that AkzoNobel works with today is to develop products free from chlorine and Me1

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42

Yin, Fang. "Copolymères multi-stimulables : effet de la composition et de la structure sur leurs propriétés en solution aqueuse." Thesis, Toulouse 3, 2021. http://www.theses.fr/2021TOU30230.

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Les polymères stimulables suscitent ces dernières années un fort intérêt en raison de leur capacité à répondre macroscopiquement, rapidement et réversiblement à des modifications de leur environnement local, ouvrant la voie à de multiples applications (libération contrôlée de médicaments, interfaces modifiables…). L’objectif de ce travail de thèse est d'étudier l'effet de la composition, de la masse molaire, de l'architecture, de la concentration de copolymères sur leurs transformations en solution aqueuse déclenchées par un changement de température et/ou de pH (modifié d'une part par additio

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Qie, Lili. "Performance Improvement of Latex-based PSAs Using Polymer Microstructure Control." Thesis, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/19727.

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This thesis aims to improve the performance of latex-based pressure-sensitive adhesives (PSAs). PSA performance is usually evaluated by tack, peel strength and shear strength. Tack and peel strength characterize a PSA’s bonding strength to a substrate while shear strength reflects a PSA’s capability to resist shear deformation. In general, increasing shear strength leads to a decrease in tack and peel strength. While there are several commercial PSA synthesis methods, the two most important methods consist of either solvent-based or latex-based techniques. While latex-based PSAs are more envir

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Cavdar, Seda. "Effect Of Different Compositions On Rheological And Mechanical Properties Of Epdm Rubber." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608968/index.pdf.

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In this work, EPDM rubber was compounded with increasing amount of filler (FEF N 550 type carbon black), process oil (saturated mineral oil), vulcanizing agent [di (t-butylperoxy) diisopropyl benzene, i.e., BBPIB] and diene [5-ethylidenebicyclo(2.2.1)-hept-2-ene, i.e., ENB] in order to investigate mechanical and rheological properties. Effect of Increasing amount of filler was investigated by using FEF N 550 type carbon black in 35, 70, 87.5, 105 phr. Decrease in scorch times of vulcanization reactions, ts2 (25, 21, 19, and 18 s, respectively) and slight increase in rate constants for vulcani

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McClorey, Catherine. "Compositional and mechanical properties of polymer/ceramic composite materials for medical applications." Thesis, University of Ulster, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369954.

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Brito, Fabiane Fagundes. "Caracterização eletroquimica do composito PSSO3H/PAni para aplicação em celulas a combustivel." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263645.

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Orientadores: Celia Marina de Alvarenga Freire, Alvaro A. A. de Queiroz<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-05T06:14:52Z (GMT). No. of bitstreams: 1 Brito_FabianeFagundes_M.pdf: 1765121 bytes, checksum: da072dcaee99b32e0bc4c60a4af4a05c (MD5) Previous issue date: 2005<br>Resumo: O desenvolvimento de materiais alternativos para aplicação em células a combustível (CaC) é uma tentativa de viabilização comercial das células, por meio da redução de custos com matéria-prima para manufatura das mesmas.

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Noronha, Fabio. "Desenvolvimento de requisitos de desempenho para elastomeros de isoladores da rede de energia eletrica." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/267098.

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Orientadores: Lucia Helena Innocentini Mei, Joceli Maria Giacomini Angelini<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica<br>Made available in DSpace on 2018-08-15T13:39:32Z (GMT). No. of bitstreams: 1 Noronha_Fabio_M.pdf: 6615415 bytes, checksum: f72688fb0000126501c64a7267950cb0 (MD5) Previous issue date: 2010<br>Resumo: Atualmente, os materiais utilizados como isoladores elétricos vêm sendo substituídos por materiais poliméricos por apresentarem vantagens em relação aos isoladores cerâmicos. Dentre estas vantagens, podem-se citar maior desem

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Yuncu, Bilgen. "Effect Of Extracellular Polymer Composition Of Activated Sludge On The Removal Of Heavy Metals By Biosorption." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/1087733/index.pdf.

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Activated sludge microorganisms can remove many hazardous substances from wastewater by adsorbing and concentrating them on their surfaces. Biosorption of these substances onto activated sludge surfaces are influenced by the chemical properties of the substance in question as well as the surface properties of the microorganisms. The purpose of this study is to identify the biosorption mechanisms of heavy metals and the effect of extracellular polymer (ECP) composition of activated sludge on the biosorption of Pb(II), Cd(II), Cu(II), Zn(II) and Ni(II). Microorganisms cultured under different gr

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Reis, Elton Aparecido Prado dos [UNESP]. "Preparação e caracterização de compósitos obtidos a partir de borracha natural com raspa de couro visando aplicações industriais." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/99697.

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Made available in DSpace on 2014-06-11T19:30:19Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-06-28Bitstream added on 2014-06-13T20:47:10Z : No. of bitstreams: 1 reis_eap_me_bauru.pdf: 5393371 bytes, checksum: 16962b43c55e24ca2edab26b06201e8e (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Neste trabalho é apresentado o método de preparação dos compósitos obtidos a partir da mistura de borracha natural (BN) com raspa de couro, gerada em uma das etapas do tratamento do couro nos cortumes. Os compósitos foram obtidos utilizando o método de prensagem e quente,

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Vyhnalkova, Renata. "Morphologies and corona compositions in aggregates of mixtures of PS-b-PAA and PS-b-P4VP block copolymers as influenced by controllable assembly parameters." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=98513.

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The present study is devoted to the morphologies and corona compositions in aggregates of mixtures of PS-b-PAA and PS-b-P4VP block copolymers as influenced by controllable assembly parameters, such as block length, pH, solvent, water content and the molar ratio of PAA/P4VP. Morphologies and surface properties of the aggregates were investigated by transmission electron microscopy and electrophoretic mobility, respectively. According to the results, the general hypothesis that the external corona is composed of long chains, while short chains form the inner corona of the vesicles, is valid only

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