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Dissertations / Theses on the topic 'Poly(2-vinylpyridine)'

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1

Dupin, Damien. "Preparation, Characterisation and Applications of Poly(2-vinylpyridine) Latex/Microgel." Thesis, University of Sheffield, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.489657.

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Emulsion polymerisation of 2-vinylpyridine (2VP) in the presence of divinylbenzene (DVB) cross-linker, a cationic surfactant and monomethoxy-capped poly(ethylene glycol) methacrylate (PEGMA) macromonomer, at around neutral pH and 60°C afforded near-monodisperse, sterically-stabilised latexes at approximately 10 % solids. Judicious selection of the synthesis parameters enabled the mean latex diameter to be varied from 370 to 970 nm depending on the initiator, polymeric stabiliser and surfactant concentrations. These lightly cross-linked latexes acquired cationic microgel character at low pH,
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2

Elmaci, Aysegul. "Thermal Characterization Of Homopolymers, Copolymers And Metal Functional Copolymers Of Vinylpyridines." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609892/index.pdf.

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Although, the use of vinyl pyridine polymers, especially as matrices for nanoparticle synthesis, is growing considerably, the knowledge of thermal degradation behavior is still missing in the literature. In this study, thermal degradation characteristics of the homopolymers<br>poly(4-vinylpyridine), P4VP, and poly(2-vinylpyridine), P2VP, the diblock copolymers<br>polystyrene-blockpoly( 2-vinylpyridine), (PS-b-P2VP) and polystyrene-block-poly(4-vinylpyridine), (PS-b-P4VP), and the metal functional vinyl polymers<br>cobalt-polystyrene-blockpoly( 2-vinylpyridine) and cobalt-polystyrene-block-poly
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3

Guliyeva, Aynur. "Nanostructuration de terpoymères triblocs linéaires poly(isoprène-b-styrène-b-2-vinylpyridine) en film mince." Thesis, Orléans, 2019. http://www.theses.fr/2019ORLE3026.

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Dans cette thèse, nous nous sommes attachés à préparer des films minces nanostructurés à partir de copolymères à blocs et de les caractériser par différentes techniques (AFM, MET et GISAXS). Le but de la recherche est de réaliser des nanostructurations originales en films minces afin de prendre en compte l'effet de confinement (quantité de matière limitée, interaction avec la surface ...) et de comprendre les phénomènes se produisant au cours de la structuration. Les travaux ont porté sur la mise en œuvre des films minces, leur réorganisation sous vapeur de solvant et leur caractérisation.Plus
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4

Smith, Donna M. "Matrix Assisted Laser Desorption Ionization Quadrupole Time-of-Flight Mass Spectrometry of Poly(2-Vinylpyridine)." University of Akron / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=akron1110337309.

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5

De, Bruyne Anne. "Contribution à l'étude de la formation et des propriétés des films de poly-2-vinylpyridine et de polypyrrole obtenus par électropolymérisation en solutions aqueuses." Doctoral thesis, Universite Libre de Bruxelles, 1996. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/212438.

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<p align="justify">Le but de ce travail a été l'étude de la technique d'électropolymérisation en vue d'obtenir les meilleurs films possibles pour l'application de protection contre la corrosion de métaux non nobles, par formation à leur surface de films de polymères.</p><p><p align="justify">Une étude bibliographique des divers cas déjà envisagés dans la littérature nous a permis de nous faire une opinion sur les composés susceptibles de présenter un intérêt et de choisir ceux que nous allions étudier. Cette étude bibliographique est assez volumineuse, de nombreux cas ayant été abordés par div
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6

Uddin, MD Hanif. "Polymeric Hairy Nanoparticles with Helical Hairs: Synthesis and Self-Assembly." DigitalCommons@Robert W. Woodruff Library, Atlanta University Center, 2018. http://digitalcommons.auctr.edu/cauetds/137.

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Nanoscale particles based on the nature of building blocks often self-assemble into superstructures with distinctive spatial arrangements which can be used as functional materials for different application. Micro-phase separated hairy nanoparticle with helical hair can self-assemble to form supramolecular material which may mimic the properties and functions of the natural polymers such as protein and cellulose. Beside this hairy/core-shell nanoparticles also may find many applications such as in asymmetric catalysis, nano-fillers in tire and rubbers, model systems for biology, lithography and
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7

Burkert, Sina. "Sensitive Polymeroberflächen zur Steuerung der Adsorption von Biomolekülen." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-26105.

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Diese Arbeit liefert die Grundlage für intelligente Beschichtungen aus kovalent gebundenen Polymeren, sogenannten Polymerbürsten, mit Schichtdicken von wenigen Nanometern. Durch ihre Fähigkeit die Oberflächeneigenschaften je nach Umgebungstemperatur, pH Wert und Zusammensetzung zu ändern, kann die Adsorption von Biomolekülen auf eine einzigartige Art und Weise kontrolliert und reguliert werden. Die zusätzliche Modifizierung der Polymerbürsten mit Elektronenstrahlen ermöglicht die Generierung von Gradienten und erweitert die Anwendungsmöglichkeiten in vielfältigen Bereichen der interdisziplinär
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8

Bocharova, Vera. "Electrically Conductive Low Dimensional Nanostructures: Synthesis, Characterisation and Application." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:14-ds-1231161926227-23379.

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Miniaturization has become a driving force in different areas of technology including microelectronics, sensoric- and bio-technologies and in fundamental science. Because of the well-known limitations of conventional lithographic methods, newly emerging bottom-up approach, utilizing self-assembly of various nanoobjects including single polymer molecules and carbon nanotubes constitutes a very promising alternative for fabrication of ultimately small devices. Carbon nanotubes are attractive materials for nanotechnology and hold much promise to revolutionize fundamental science in a investigatio
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9

Bocharova, Vera. "Electrically Conductive Low Dimensional Nanostructures: Synthesis, Characterisation and Application." Doctoral thesis, Technische Universität Dresden, 2008. https://tud.qucosa.de/id/qucosa%3A23607.

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Miniaturization has become a driving force in different areas of technology including microelectronics, sensoric- and bio-technologies and in fundamental science. Because of the well-known limitations of conventional lithographic methods, newly emerging bottom-up approach, utilizing self-assembly of various nanoobjects including single polymer molecules and carbon nanotubes constitutes a very promising alternative for fabrication of ultimately small devices. Carbon nanotubes are attractive materials for nanotechnology and hold much promise to revolutionize fundamental science in a investigatio
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10

Yen, Wei-Che, and 顏唯哲. "Synthesis and characterization of Poly (3-hexylthiophene)-b-Poly (2-vinylpyridine)." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/18714367947107446636.

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碩士<br>國立臺灣大學<br>高分子科學與工程學研究所<br>93<br>To achieve high efficient organic photovoltaics, we propose to use self-assemble highly ordered block-copolymer as active layer to facilitate high charge carrier transport rate. In this study, we used anionic polymerization to synthesize block-copolymer poly(3-hexylthiophene)-b-poly(2-vinylpyridine)(P3HT-b-P2VP) with two compositions, 1: 2and 1: 49 (weight ratio). Their properties were studied by UV-vis, PL, TGA and TEM and compared them with pure P3HT and blend of P3HT-P2VP. In UV-vis and PL spectra, copolymers showed a blue-shift as compared with pure P3
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11

WU, PEI-CHI, and 吳沛奇. "Synthesis of Isotactic Poly(1-butene)-block-Poly(2-vinylpyridine) for Nanolithagraphy Applications." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/bqzh6r.

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碩士<br>國立中正大學<br>化學工程研究所<br>106<br>In this research, we report that an aluminum-capped isotactic poly(1-butene) was generated as the exclusive chain transfer reaction product by using Dichloro[rac-ethylenebis(indenyl)]-zirconium(IV) to mediate the isospecific polymerization of 1-butene in the presence of triethylaluminum as the chain transfer agent. The resulting aluminum-capped iP1B can be treated with oxygen and hydrogen peroxide to provide the hydroxy-capped iP1B (iP1B-OH) as the end-functionalized prepolymer. Consequently, the resulting iP1B-OH can be converted into the tosyl-capped iP1B (i
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12

YU, TING-YI, and 游婷伊. "Structurally well-defined isotactic Poly(2-vinylpyridine)s:Syntheses and Self-Assembly Studies." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/96326867304972206383.

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碩士<br>國立中正大學<br>化學工程研究所<br>104<br>Polymers with tacticity have many special physical and chemical properties, and have found important industrial applications. In this report we focus on the syntheses and self-assembly studies of isotactic poly-2-vinylpyridine-based block copolymer (iP2VP-based block copolymer) as our previous studies have demonstrated that the combination of iP2VP with various chiral dopants can lead to the formation of unusual aggregated helical structure in solution as revealed by ICD experiments. In order to investigate the possibility of forming helical conformation in so
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13

Ravindranathan, Sapna. "Local Dynamics Of Polymers In Solution Monitored By 13c NMR Relaxation : Studies On Poly (2-Vinylpyridine) And Poly (Isobutylmethacrylate)." Thesis, 1995. http://etd.iisc.ernet.in/handle/2005/1738.

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14

Chen, Jhih-Hua, and 陳志華. "Structurally Well-defined Isotactic Poly(2-vinylpyridine):Syntheses and Applications in the Chiral Dopant Induced Circular Dichrorism." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/96207651135227726679.

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碩士<br>國立中正大學<br>化學工程研究所<br>100<br>In this report, we demonstrated that various isotactic poly(2-vinyl pyridine) (iP2VP) samples with different degrees of isotacticity can be prepared by isospecific polymerization of 2-vinyl pyridine using tert-butylphenylmagesium bromide as the initiator. The isotacticty of these iP2VP samples can be controlled by the presence of different concentrition of coordination ligand (e.g., THF) on the polymerization solution. The resulting iP2VP samples were used to combine with various structures of chiral dopant to examine if the combination of stereoregualr (tacti
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15

Lin, En-Li, and 林恩立. "Fabrications of Photonic Crystals with Various Microstructures in Polystyrene-block- Poly(2-vinylpyridine) Block Copolymer Thin Films." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/16578759266082284441.

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碩士<br>國立中山大學<br>材料與光電科學學系研究所<br>101<br>In this study, the fabrication of block copolymer (BCP) photonic crystals with different microstructures including lamella, cylinder, gyroid and hexagonally perforated layer are conducted from the self-assembly of polystyrene-b-poly (2-vinyl pyridine) (PS-P2VP) BCP thin films. Transmission electron microscope (TEM) micrograph of high-molecular-weight PS-P2VP shows cylinder morphology from 1, 2-dichloroethane whereas low-molecular-weight PS-P2VP exhibits gyroid morphology form dichloromethane in bulk. Owing to the difference of solvent selectivity for PS a
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16

Hong, Hai-Fong, and 洪海峯. "Structurally well-define isotactic Poly(2-vinylpyridine):Syntheses and use in the chiral dopant induced Circular Dichrorism and Self-Assembly studies." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/q785z2.

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碩士<br>國立中正大學<br>化學工程研究所<br>102<br>Stereoegular tactic Polymers have many unique physical and chemical properties and applications, and hence have drawn tremendous research attentions. In this report, stereoregualr isotactic poly-2-vinylpyridine (iP2VP) was synthesized and used to combine with various chiral dopants to examine if the combination of stereoregualr (tactic) polyolefins and chiral dopants can induced circular dichroism (ICD) driven by the formation of helical conformation along the iP2VP main chain. In the syntheses of iP2VP, two kinds of Grignard reagents, including para-3-butenyl
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17

Burkert, Sina. "Sensitive Polymeroberflächen zur Steuerung der Adsorption von Biomolekülen." Doctoral thesis, 2009. https://tud.qucosa.de/id/qucosa%3A25183.

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Diese Arbeit liefert die Grundlage für intelligente Beschichtungen aus kovalent gebundenen Polymeren, sogenannten Polymerbürsten, mit Schichtdicken von wenigen Nanometern. Durch ihre Fähigkeit die Oberflächeneigenschaften je nach Umgebungstemperatur, pH Wert und Zusammensetzung zu ändern, kann die Adsorption von Biomolekülen auf eine einzigartige Art und Weise kontrolliert und reguliert werden. Die zusätzliche Modifizierung der Polymerbürsten mit Elektronenstrahlen ermöglicht die Generierung von Gradienten und erweitert die Anwendungsmöglichkeiten in vielfältigen Bereichen der interdisziplinä
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