Relevant bibliographies by topics / Porous polymeric structure / Dissertations / Theses
To see the other types of publications on this topic, follow the link: Porous polymeric structure.

Dissertations / Theses on the topic 'Porous polymeric structure'

Author: Grafiati
Published: 28 May 2022
Last updated: 30 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Porous polymeric structure.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Bezik, Cody. "Poly(High Internal Phase Emulsion) Foams and Fibers: Structure-Property Relationships." Case Western Reserve University School of Graduate Studies / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=case1436458970.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Khan, Amir. "Vibro-acoustic products from re-cycled raw materials using a cold extrusion process : a continuous cold extrusion process has been developed to tailor a porous structure from polymeric waste, so that the final material possesses particular vibro-acoustic properties." Thesis, University of Bradford, 2008. http://hdl.handle.net/10454/4289.

Full text
Abstract:
A cold extrusion process has been developed to tailor a porous structure from polymeric waste. The use of an extruder to manufacture acoustic materials from recycled waste is a novel idea and the author is not aware of any similar attempts. The extruder conveys and mixes the particulates with a reacting binder. The end result is the continuous production of bound particulates through which a controlled amount of carbon dioxide gas that is evolved during the reaction is used to give the desired acoustic properties. The cold extrusion process is a low energy consuming process that reprocesses th
APA, Harvard, Vancouver, ISO, and other styles
3

Шемедюк, О. Л. "Метаматеріали на основі пористих полімерних структур з властивостями невідбиваючого поглинання ультразвукової хвилі". Thesis, Сумський державний університет, 2016. http://essuir.sumdu.edu.ua/handle/123456789/45750.

Full text
Abstract:
Метаматеріали синтезуються введенням у природній матеріал періодичних структур різних геометричних форм, які модифікують властивості початкового матеріалу. Пористий метаекран, тобто один шар газових включень в пластичну і тверду речовину, може бути змодельований у вигляді відкритого резонатора акустичної хвилі, поведінка якого описується певними аналітичними виразами. Розрахунок параметрів поздовжньої хвилі у такій структурі доволі складний. Проте не так давно була запропонована відносно проста модель для розрахунку коефіцієнтів пропускання і відбивання УЗ-хвиль від одного шару пор метаекрану,
APA, Harvard, Vancouver, ISO, and other styles
4

Gonçalves, Bianca Leopoldo. "Porous structures for the purification of biopharmaceuticals." Master's thesis, Faculdade de Ciências e Tecnologia, 2014. http://hdl.handle.net/10362/12128.

Full text
Abstract:
This work aimed at the development of a (bio)polymeric monolithic support for biopharmaceuticals purification and/or capture. For that, it was assured that functional groups on its surface were ready to be involved in a plethora of chemical reactions for incorporation of the desired and most suitable ligand. Using cryogelation as preparation method a screening on multiple combinations of materials was performed in order to create a potentially efficient support with the minimal footprint, i.e. a monolithic support with reasonable mechanical properties, highly permeable, biocompatible, ready to
APA, Harvard, Vancouver, ISO, and other styles
5

Jande, Yusufu Abeid Chande. "Manufacturing And Characterization Of Uniformly Porous And Graded Porous Polymeric Structures Via Selective Laser Sintering." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12611406/index.pdf.

Full text
Abstract:
Selective laser sintering is a rapid prototyping method (RP), which was originally developed, along with other RP methods, to speed up the prototyping stage of product design. The sole needed input for production being the solid model of the part, the mold/tool-free production characteristics and the geometric part complexity that can be achieved due to layer-by-layer production have extended the applicability/research areas of these methods beyond prototyping towards new applications and material development. Local pore formation in a part that occurs as a result of the discrete manufacturin
APA, Harvard, Vancouver, ISO, and other styles
6

Hansen, Eddy W., and Hans Christian Gran. "Probing pore-structure within porous polymer particles by NMR." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-194852.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Hansen, Eddy W., and Hans Christian Gran. "Probing pore-structure within porous polymer particles by NMR." Diffusion fundamentals 3 (2005) 21, S. 1-2, 2005. https://ul.qucosa.de/id/qucosa%3A14312.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Zhao, Wuxue, Fan Zhang, Lingyun Yang, et al. "Anionic porous polymers with tunable structures and catalytic properties." Royal Society of Chemistry, 2016. https://tud.qucosa.de/id/qucosa%3A30348.

Full text
Abstract:
A series of boron-containing conjugated microporous polymers with hierarchical porous structures have been readily prepared via typical transition metal-catalyzed coupling reactions. The distribution of micro- and mesopores in the networks as well as the specific surface areas are tunable via tailoring the structures of the building blocks. The distinct capability of the resulting Lewis acid-based neutral porous polymers to selectively capture fluoride ions provides a high-efficiency conversion into stable anionic porous polymers. For the first time, fluoride anion binding to boron atoms in a
APA, Harvard, Vancouver, ISO, and other styles
9

Zhao, Wuxue, Fan Zhang, Lingyun Yang, et al. "Anionic porous polymers with tunable structures and catalytic properties." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-225647.

Full text
Abstract:
A series of boron-containing conjugated microporous polymers with hierarchical porous structures have been readily prepared via typical transition metal-catalyzed coupling reactions. The distribution of micro- and mesopores in the networks as well as the specific surface areas are tunable via tailoring the structures of the building blocks. The distinct capability of the resulting Lewis acid-based neutral porous polymers to selectively capture fluoride ions provides a high-efficiency conversion into stable anionic porous polymers. For the first time, fluoride anion binding to boron atoms in a
APA, Harvard, Vancouver, ISO, and other styles
10

Evans, Nathan Timothy. "Processing-structure-property relationships of surface porous polymers for orthopaedic applications." Diss., Georgia Institute of Technology, 2016. http://hdl.handle.net/1853/55004.

Full text
Abstract:
The use of polymers in orthopaedics is steadily increasing. In some markets, such as spinal fusion and soft tissue anchors, the polymer polyetheretherketone (PEEK) is already the material of choice in the majority of implants. Despite PEEK’s widespread use, it is often associated with poor osseointegration, which can lead to implant loosening and ultimately failure of the device. Many attempts have been explored to improve the osseointegration of PEEK but none have had widespread clinical success. In this dissertation, a novel surface porous structure has been created, where limiting the poros
APA, Harvard, Vancouver, ISO, and other styles
11

Yang, Xuebin. "Bone tissue engineering : biomimetic structures for human osteoprogenitor growth." Thesis, University of Southampton, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270664.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Agirtopcu, Yasin. "Investigations On The Permeability Of Acrylic Powder Structures." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/4/1045343/index.pdf.

Full text
Abstract:
There are many examples where creation and usage of porous substrates play important roles in various fields of application in material science and technology. In the manufacture of ceramic products, as an alternative to the plaster molds, porous resin molds are used in order to resolve the drawbacks that result A porous substrate can be produced by various ways. In this study, porous polymeric matrices of poly(methyl methacrylate) (PMMA) and poly(methyl methacrylate-co-2-hydroxyethyl methacrylate) [poly(MMA-HEMA)] polymers were prepared by connecting the polymer microspheres to each other by
APA, Harvard, Vancouver, ISO, and other styles
13

Kitao, Takashi. "Controlled Assembly Structures of Conjugated Polymers Mediated by Coordination Nanospaces." 京都大学 (Kyoto University), 2017. http://hdl.handle.net/2433/225635.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Zhang, Wei. "Controllable growth of porous structures from co-continuous polymer blend." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/39608.

Full text
Abstract:
Due to their large internal surface area, microporous materials have been widely used in applications where high surface activity is desired. Example applications are extracellular scaffolds for tissue engineering, porous substrates for catalytic reaction, and permeable media for membrane filtration, etc. To realize these potential applications, various techniques such as TIPS (thermal induced phase separation), particle leaching, and SFF (solid freeform fabrication) were proposed and investigated. Despite of being able to generate microporous for specific applications, these available fabrica
APA, Harvard, Vancouver, ISO, and other styles
15

Zocca, Andrea [Verfasser]. "Additive manufacturing of porous ceramic structures from preceramic polymers / Andrea Zocca." Clausthal-Zellerfeld : Universitätsbibliothek Clausthal, 2016. http://d-nb.info/1093614021/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
16

Matsuda, Ryotaro. "Studies on syntheses, structures and porous properties of microporous coordination polymers." 京都大学 (Kyoto University), 2005. http://hdl.handle.net/2433/144533.

Full text
Abstract:
Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(工学)<br>甲第11794号<br>工博第2554号<br>新制||工||1354(附属図書館)<br>23534<br>UT51-2005-F824<br>京都大学大学院工学研究科合成･生物化学専攻<br>(主査)教授 北川 進, 教授 村上 正浩, 教授 宮原 稔<br>学位規則第4条第1項該当
APA, Harvard, Vancouver, ISO, and other styles
17

Marshall, Andrew J. "Porous hydrogels with well-defined pore structure for biomaterials applications /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/8559.

Full text
APA, Harvard, Vancouver, ISO, and other styles
18

Greco, Pier Paolo. "Development of novel polymeric and composite nano-structured micro-porous materials for impact resistance applications." Thesis, University of Newcastle upon Tyne, 2014. http://hdl.handle.net/10443/2517.

Full text
Abstract:
Impact resistant materials (IRMs) are widely used in the automotive and packaging industry. Their main purpose is the protection of the transported occupants or goods. Cellular materials as well as structures combine lightness with large deformation under load. The energy absorption mechanism is provided by limiting the peak load and ensuring the elastic deformation of the IRMs. Polymeric foams are largely used as IRMs due to their cellular structure. Prediction of the foam properties in terms of Young’s Modulus (Elastic Modulus) and the onset of Plateau Region can be related to the foam densi
APA, Harvard, Vancouver, ISO, and other styles
19

Harding, S. G. "NMR studies of structure-transport relationships in porous media : liquid diffusion in polymers." Thesis, University of Cambridge, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.603691.

Full text
Abstract:
The main motivation behind this work was to explore the potential of nuclear magnetic resonance (NMR) to study small molecule diffusion in porous materials and the relationship between structure and transport processes, with particular emphasis on liquid diffusion in polymers. The diffusion of small hydrocarbons into a range of semicrystalline polyethylene (PE) samples is studied. Under the penetration conditions employed the polymer crystallinity is retained, supporting the idea that the penetrant resides only in the amorphous region. Magnetic resonance imaging (MRI) is used to monitor the bu
APA, Harvard, Vancouver, ISO, and other styles
20

Andrew, Harold Gibbons. "Design and Application of Optical Polymers." Kyoto University, 2019. http://hdl.handle.net/2433/242585.

Full text
APA, Harvard, Vancouver, ISO, and other styles
21

Liu, Kewei. "Macro Porous Graphene from Hollow Ni Templates via Polymer Templates with Bi-Continuous." University of Akron / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1397135127.

Full text
APA, Harvard, Vancouver, ISO, and other styles
22

Fleming, Steven. "Agro-process intensification using nano-structured micro-porous polymers as soil additives to enhance crop production." Thesis, University of Newcastle upon Tyne, 2012. http://hdl.handle.net/10443/1894.

Full text
Abstract:
Polymerised High Internal Phase Emulsion Polymer (PHP) is a nano-structured microporous polymeric material with a variety of applications. PHPs may have a role to play in sustaining or enhancing crop yields in increasingly alien environments. An elastic hydrophilic version has been developed that has been shown to increase crop yields when used as a soil additive. Soil is a natural carrier of water and nutrients as well as bacteria all of which are widely distributed in the soil and inefficiently maintained and utilised by plants. When polymer is added to the soil, water is attracted to the po
APA, Harvard, Vancouver, ISO, and other styles
23

Gorka, Joanna. "Polymer-based mesoporous carbons: soft-templating synthesis, adsorption and structural properties." Kent State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=kent1290460109.

Full text
APA, Harvard, Vancouver, ISO, and other styles
24

Song, Lulu. "Study of Ordered Macroporous Polymer Films by Templating Breath Figures." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7004.

Full text
Abstract:
Study of Ordered Macroporous Polymer Films by Templating Breath Figures Lulu Song 193 pages Directed by Dr. Mohan Srinivasarao Macroporous films with highly ordered pore patterns have many potential applications. Some examples include microstructured electrode surfaces, photonic band gap materials and filters for cell sorting and bio-interfaces. In this dissertation we discuss a moist-casting method to prepare hexagonally-ordered macroporous films with pore sizes in the range of sub-micron to several microns, where condensed water droplets (breath figures) work as templates. Compared with
APA, Harvard, Vancouver, ISO, and other styles
25

Pally, Nitin Kumar. "Synthesis and Structures of New Three-Dimensional Copper Metal-Organic Frameworks." TopSCHOLAR®, 2013. http://digitalcommons.wku.edu/theses/1295.

Full text
Abstract:
Metal-organic frameworks (MOFs) are crystalline materials with metal ions covalently bonded to organic ligands. The ligands act as spacers often creating a porous structure with very high pore volume and surface area. MOFs are known for their robust structures, high porosity, and different chemical functionalities and are considered for applications in adsorptions, separations, catalysis and gas storage. This work focuses on the synthesis of new MOFs using copper compounds. Different types of carboxylate ligands were used for the synthesis. Two new copper-organic frameworks, [Cu3(pyz)(btc)] (1
APA, Harvard, Vancouver, ISO, and other styles
26

Assi, Hala. "Nouveaux polymères de coordination à base de titane et de dérivés phénoliques." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLV072/document.

Full text
Abstract:
Les solides hybrides poreux ou les « MOFs » sont l'une des classes les plus récentes de polymères de coordination poreux cristallins. En raison de la variété de leur structure et leur composition, Ils sont actuellement considérés comme des candidats prometteurs dans divers domaines (le stockage de gaz, la séparation des fluides, la catalyse, la biomédecine…). Cependant, la littérature sur l'activité photocatalytique de ces solides n’a commencé à s’exploser que très récemment, bien que l’utilisation de ces matériaux comme photocatalyseurs hétérogènes soit avantageux en comparaison avec les semi
APA, Harvard, Vancouver, ISO, and other styles
27

Grünker, Ronny, Irena Senkovska, Ralf Biedermann, et al. "A highly porous flexible Metal–Organic Framework with corundum topology." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-138599.

Full text
Abstract:
A flexible Metal–Organic Framework Zn4O(BenzTB)3/2 (DUT-13) was obtained by combination of a tetratopic linker and Zn4O6+ as connector. The material has a corundum topology and shows the highest pore volume among flexible MOFs<br>Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich
APA, Harvard, Vancouver, ISO, and other styles
28

Grünker, Ronny, Irena Senkovska, Ralf Biedermann, et al. "A highly porous flexible Metal–Organic Framework with corundum topology." Royal Society of Chemistry, 2011. https://tud.qucosa.de/id/qucosa%3A27762.

Full text
Abstract:
A flexible Metal–Organic Framework Zn4O(BenzTB)3/2 (DUT-13) was obtained by combination of a tetratopic linker and Zn4O6+ as connector. The material has a corundum topology and shows the highest pore volume among flexible MOFs.<br>Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
APA, Harvard, Vancouver, ISO, and other styles
29

Das, Pritam. "Membrane micro-structurée utilisable comme support au développement de cellule humaine : développement, caractérisation et interaction cellule-matrice." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30282/document.

Full text
Abstract:
Les matériaux à structure tridimensionnelle laissent entrevoir de nombreuses applications prometteuses dans le domaine de l'ingénierie tissulaire et de la médecine régénérative en fournissant un micro-environnement approprié pour l'incorporation de cellules ou de facteurs de croissance afin de régénérer des tissus ou organes endommagés. Dans ce contexte, une membrane a été élaborée à partir d'un mélange de poly (ε-caprolactone) PCL / chitosan CHT à partir d'une technique d'inversion de phase permettant un apport localisé de non solvent. La technique permet d'obtenir une double morphologie pore
APA, Harvard, Vancouver, ISO, and other styles
30

Brien, Joshua V. "DEVELOPMENT OF CEMENTITIOUS MATERIALS FOR ADHESION TYPE APPLICATIONS COMPRISING CALCIUM SULFOALUMINATE (CSA) CEMENT AND LATEX POLYMER." UKnowledge, 2014. http://uknowledge.uky.edu/ce_etds/19.

Full text
Abstract:
The objective of this research was to develop high performing polymer modified calcium sulfoaluminate (CSA) cement materials for use in applications requiring superior adhesion characteristics. Little information is available describing interactions of CSA cement containing minor phase tri-calcium aluminate (C3A) with commonly used admixtures. Given the scarcity of information, a basic approach for developing cementitious materials was followed. The basic approach consisted of four tasks: cement design, admixture design, polymer design and testing developed materials. The iterative, time consu
APA, Harvard, Vancouver, ISO, and other styles
31

Mouquet, Aymeric. "Structure et élasticité des films moussés : Effets de la distribution des tailles des bulles." Thesis, Paris Est, 2018. http://www.theses.fr/2018PESC1108/document.

Full text
Abstract:
L’objet de ce travail expérimental est l’étude de la mécanique de films de mousses dont la structure est confinée par leur faible épaisseur. A partir d’une méthode de moussage de dispersion de particules de polyuréthane, nous sommes parvenus à contrôler, de façon indépendante, la fraction d’air (ou la densité) de ces films, leur épaisseur e et la distribution des tailles de leurs pores (de diamètre moyen D ̅_b). Pour ce dernier paramètre, nous nous sommes intéressés au cas de distributions monodisperse, bidisperse et polydisperses. Les différentes structures obtenues ont été étudiées par tomog
APA, Harvard, Vancouver, ISO, and other styles
32

Zhou, Chongfu. "Carbon Nanotube Based Electrochemical Supercapacitors." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/19747.

Full text
Abstract:
Several approaches have been used to develop carbon nanotube (CNT) based electrochemical supercapacitors. These approaches include the following: (a) stabilization and carbonization of ternary composites of polyacrylonitrile (PAN), poly (styrene co-acrylonitrile) (SAN) copolymer, and single wall carbon nanotubes (SWNTs); (b) SWNT membranes functionalized with aryl chloride, sodium sulfonate, aryl sulfonic acid, bis(3,5-di-tert-butylphenyl)5-aminobenzene-1,3-dioate, and 4,4 -methylenedianiline; and (c) pyrrole treated SWNTs. In addition nitric acid functionalized and heat-treated SWNT membra
APA, Harvard, Vancouver, ISO, and other styles
33

Tripathy, Jagnyaseni. "Template-Assisted Fabrication of Ferromagnetic Nanomaterials." ScholarWorks@UNO, 2014. http://scholarworks.uno.edu/td/1951.

Full text
Abstract:
Abstract Template assisted deposition was used to produce various nanomaterials including simple nanowires, nanorods, multi-segmented metal nanowires, core-shell nanowires, alloy and polymer wires and tubes. Anodized aluminum oxide (AAO) membranes were used as templates for the growth of the various structures using an electrochemical deposition method and also by wetting the porous templates. In the electrochemical deposition method, the pore size of the templates affects the rate of synthesis and the structures of the nanomaterials while in the wetting method, the viscosity and reaction tim
APA, Harvard, Vancouver, ISO, and other styles
34

Lemarinier, Pavel. "Propagation du son dans des mousses et une laine de verre a structures rigides saturees par de l'air : validation experimentale de modeles thermiques, analogie dielectrique, impregnation polymere d'une mousse." Le Mans, 1997. http://www.theses.fr/1997LEMA1004.

Full text
Abstract:
Dans un contexte de materiaux absorbants, des valeurs experimentales du facteur de forme m' sont obtenues lors de mesures dynamiques de la compressibilite de l'air dans des mousses polyuethanes reticulees et une laine de verre. Une reflexion est menee concernant la validite des modeles thermiques de propagation du son dans ces structures, le cas d'un echauffement partiel du solide etant pris en compte. Une analogie avec les dielectriques est utilisee pour preciser la nature de la relaxation des susceptibilites etudiees. On montre la similitude de ces fonctions aux formes de relaxation bien con
APA, Harvard, Vancouver, ISO, and other styles
35

Bardot, Anne. "Modélisation acoustique basses fréquences de cavités en présence d'absorbants sur parois rigides ou élastiques." Compiègne, 1992. http://www.theses.fr/1992COMP0424.

Full text
Abstract:
Ces travaux concernent l'amélioration de la compréhension physique et la modélisation des phénomènes vibro-acoustiques de cavités en présence de matériaux absorbants en vue d'améliorer la modélisation vibro-acoustique d'un habitacle automobile pour des problèmes de bourdonnement [50-200Hz]. La caractérisation acoustique des matériaux absorbants, plus particulièrement des matériaux polyuréthanes est basée sur une procédure originale associant mesures et modèle de Biot pour caractériser l'impédance acoustique des matériaux en basses fréquences, sous l'incidence d'ondes planes normales ou oblique
APA, Harvard, Vancouver, ISO, and other styles
36

Bardot, Anne. "Modélisation acoustique basses fréquences de cavités en présence d'absorbants sur parois rigides ou élastiques." Compiègne, 1992. http://www.theses.fr/1992COMPD424.

Full text
Abstract:
Ces travaux concernent l'amélioration de la compréhension physique et la modélisation des phénomènes vibro-acoustiques de cavités en présence de matériaux absorbants en vue d'améliorer la modélisation vibro-acoustique d'un habitacle automobile pour des problèmes de bourdonnement [50-200Hz]. La caractérisation acoustique des matériaux absorbants, plus particulièrement des matériaux polyuréthanes est basée sur une procédure originale associant mesures et modèle de Biot pour caractériser l'impédance acoustique des matériaux en basses fréquences, sous l'incidence d'ondes planes normales ou oblique
APA, Harvard, Vancouver, ISO, and other styles
37

Campo, Mireille. "Milieux poreux et modification de la porosité. Influence de l'incorporation de fines minérales et organiques dans les matrices cimentaires." Toulouse, INSA, 1993. http://www.theses.fr/1993ISAT0025.

Full text
Abstract:
Pour modifier la porosite de materiaux cimentaires, dans un contexte industriel contraignant (materiaux secs et mise en place forcee), deux procedes bases sur l'incorporation ont ete examines. Une grande variete de produits a ete etudiee, pour comprendre les processus de modification: fines minerales et fines organiques. L'ajout de fines minerales inertes ou reactives a mis en evidence le faible role du remplissage physique. L'incorporation doit etre suivie d'une cure hydrique precoce. Elle fait apparaitre une correlation entre le volume total poreux et le taux d'avancement de la reaction d'hy
APA, Harvard, Vancouver, ISO, and other styles
38

Castro, Lopez William Camilo. "Modélisation du comportement diffuso-mécanique d'un polymère semi-cristallin sous pression d'eau." Thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2015. http://www.theses.fr/2015ESMA0010.

Full text
Abstract:
La compréhension des couplages hydro-mécaniques pouvant influencer le comportement mécanique d’un polymère semi-cristallin (PSC) sous forte pression d’eau est à l’origine de ce travail de recherche.Afin de décrire des phénomènes de diffusion d’eau et leurs impacts sur le comportement mécanique du matériau lors d’un chargement multiaxial, l’influence des caractéristiques microstructurales sur le comportement diffuso-mécanique du matériau a été considérée dans la modélisation. Un modèle de comportement mécanique permettant de rendre compte du phénomène de cavitation généré par d’importantes défo
APA, Harvard, Vancouver, ISO, and other styles
39

Ponsot, Inès. "Glasses and Glass-Ceramic Components from Inorganic Waste and Novel Processing." Doctoral thesis, Università degli studi di Padova, 2015. http://hdl.handle.net/11577/3424636.

Full text
Abstract:
Thanks to European environmental rules and regulations establishment, waste recycling has become a more and more relevant problematic. For manufacturing plants, especially those producing hazardous wastes, expenses linked to waste production have drastically increased over the last decades. In the proposed work, various hazardous and non-hazardous wastes, among: soda-lime and borosilicate glass cullet, cathode ray tubes glass, exhausted lime from fume abatement systems residues, sludge and slags from ferrous and non-ferrous metallurgy, and pre-stabilized municipal solid waste incinerators ashe
APA, Harvard, Vancouver, ISO, and other styles
40

MANNELLA, Gianluca Antonio. "POLYMERIC POROUS STRUCTURES VIA PHASE SEPARATION." Doctoral thesis, 2012. http://hdl.handle.net/10447/94658.

Full text
APA, Harvard, Vancouver, ISO, and other styles
41

Hashemi, Sangdehi Ashraf Alsadat. "Newly-developed parameters to quantify texture : application to polymeric porous structures." Thèse, 2005. http://hdl.handle.net/1866/15640.

Full text
APA, Harvard, Vancouver, ISO, and other styles
42

Lopes, Ana Catarina Teixeira Castro. "Development of electroactive polymer nanocomposites with porous structured materials." Doctoral thesis, 2013. http://hdl.handle.net/1822/27351.

Full text
Abstract:
Tese de doutoramento em Ciências (área de especialização em Física)<br>Electroactive polymer composites are interesting materials for advance technological applications due to the possibility to combine the electroactive properties of the polymer matrix with a large variety of fillers that allow tailored responses for specific applications. The best all-around electroactive polymers are poly(vinylidene fluoride) (PVDF) and its copolymers which allied with the properties of porous zeolite materials, with tailored shape, size and Si/Al ratio, among others, leads to the possibility of deve
APA, Harvard, Vancouver, ISO, and other styles
43

Khodabandeh, A. "Polymer nanoparticles and their supracolloidal monolithic structures for applications in separation science." Thesis, 2017. https://eprints.utas.edu.au/23768/1/Khodabandeh_whole_thesis.pdf.

Full text
Abstract:
Porous polymers generated from high internal phase emulsions (HIPEs), having interconnected open-void morphology, low density and high porosity up to 95%, are finding various applications including separation science due to their exceptional properties, such as tunable pore size and surface characters. A new class of polyHIPE materials has been prepared using HIPE template stabilized by a series of tailor-made polymeric surfactant as sole stabilizer. These polymeric surfactants were synthesized by radical addition-fragmentation chain transfer (RAFT) polymerization, which from the obtained cop
APA, Harvard, Vancouver, ISO, and other styles
44

Siao, Bo-Wun, and 蕭博文. "Injection Molding of Composited Polymer Plate with Porous Anodic Alumina Structures." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/5479mk.

Full text
Abstract:
碩士<br>國立臺灣科技大學<br>機械工程系<br>102<br>This research is to develop a novel process with the porous anodic aluminum (PAA) to produce the nano-porous ceramic template and then combines with a thermoplastics plate by the quasi-inserted injection molding process. The composited polymer plate containing aluminum material on PAA template has the ability to enhance heat transfer capability of local heat source. Effects of injection molding parameters on the thermal conductivity coefficient of the composited polymer plate have been investigated with the height of polymer inside the PAA template by bonding
APA, Harvard, Vancouver, ISO, and other styles
45

Batuca, Ana Raquel dos Reis. "Development of 3D porous structures for buccal drug delivery." Master's thesis, 2016. http://hdl.handle.net/10362/63364.

Full text
Abstract:
Advances in polymer science and engineering has led to the development of new poly-meric systems for controlled drug delivery in the oral cavity. In this work, pH responsive scaf-folds were prepared by two distinct methods: freeze-drying and gelation process followed by scCO2-assisted drying. The objective was to obtain two distinct porous structures, a gum and a candy to treat oral diseases. The scaffolds of chitosan (CHT), xanthan gum (XG) and polymer m (PM) were prepared with and without crosslinkers (N,N’-methylene-bis-acrylamide (MBA), tet-ramethylenediamine (TEMED) and ammonium persulfat
APA, Harvard, Vancouver, ISO, and other styles
46

Hendricks, Nicholas. "Porous Metal Oxide Materials Through Novel Fabrication Procedures." 2012. https://scholarworks.umass.edu/open_access_dissertations/609.

Full text
Abstract:
Porous metal oxide materials, particularly those comprised of silica or titania, find use in many applications such as low-k dielectric materials for microelectronics as well as chemical sensors, micro/nanofluidic devices, and catalyst substrates. For this dissertation, the focus will be on the processing of porous metal oxide materials covering two subjects: hierarchical porosity exhibited over two discrete length scales and incorporation of functional nanomaterials. To generate the porous silica materials, the technique of supercritical carbon dioxide infusion (scCO2) processing was heavily
APA, Harvard, Vancouver, ISO, and other styles
47

Desire, CT. "The development and evaluation of supracolloidal monolithic structures for applications in separation science." Thesis, 2018. https://eprints.utas.edu.au/28367/1/Desire_whole_thesis_ex_pub_mat.pdf.

Full text
Abstract:
This thesis focuses on the development of polymer monoliths from emulsions for applications in liquid chromatography, in particular the use of high internal phase emulsions to produce monoliths with controlled morphology. An initial study focused on the preparation of hydrophilic polymer monoliths using oil-in-water emulsions. Here, the internal phase volume of the emulsion was varied to produce monoliths with improved mechanical properties under compression. A systematic study was then employed focusing on the influence of the internal phase volume, surfactant concentration and the emulsific
APA, Harvard, Vancouver, ISO, and other styles
48

Adhikari, Debabrata. "Resin flow in porous preform during VARTM: A theoretical and experimental investigation." Thesis, 2019. https://etd.iisc.ac.in/handle/2005/4958.

Full text
Abstract:
In recent times, fiber reinforced polymer (FRP) composites have received enormous attention due to their exhibited improved mechanical properties, lightweight and design flexibility to manufacture large structures as an attractive alternative structural material compared to conventional metals for marine, aerospace, automobile, and civil industries. FRP manufacturing technology strives to completely saturate the dry fiber phase with thermoplastic or thermoset resins to yield a heterogeneous material with enhanced capabilities. This work focuses on the physics of resin impregnation in dry
APA, Harvard, Vancouver, ISO, and other styles
49

Ding, Miao-Tzu, and 丁妙慈. "Soluble Metal-Organic Frameworks: Dissolution/Reassembly towards the Structural Rearrangement of Porous Cobalt(II)- and Nickel(II)–Carboxylate Coordination Polymers." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/40897218316524320914.

Full text
Abstract:
碩士<br>國立中央大學<br>化學研究所<br>96<br>The goal of this study was to develop a self-assembly synthetic strategy for the preparation of metal–organic coordination polymers using benzene-1,2,4,5-tetracarboxylic acid (H4btec) and transition-metal ions (CoII, NiII). Four three-dimensional, soluble, porous metal–organic coordination networks {K2[Co3(btec)2(H2O)4]∙6H2O}n (1•6H2O), {K2[Ni3(btec)2(H2O)4]•4H2O}n (2•4H2O), {Cs2[Co3(btec)2(H2O)4]•3H2O}n (3•3H2O), and {Cs2[Ni3(btec)2(H2O)4]•3H2O}n (4•3H2O) with near identical structural features were hydrothermally prepared. These structures adopt a (4,8)-co
APA, Harvard, Vancouver, ISO, and other styles
50

Makal, Trevor Arnold. "Pendant Functional Groups in Metal-Organic Frameworks - Effects on Crystal Structure, Stability, and Gas Sorption Properties." Thesis, 2013. http://hdl.handle.net/1969.1/149331.

Full text
Abstract:
The primary goal of this research concerns the synthesis and characterization of metal-organic frameworks (MOFs) grafted with pendant alkyl substituents to enhance stability and gas sorption properties for use in clean-energy related technologies. Initially, the focus of this work was on the synthesis and comparison of two isostructural MOFs built upon octahedral secondary building blocks; one with no alkyl substituents, and its dimethyl-substituted counterpart. The dimethyl-substituents are observed to enhance the stability of the framework, resulting in high Langmuir surface area (4859 m2 g-
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the bibliographies on the topic 'Porous polymeric structure' for other source types:
Journal articles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography