Relevant bibliographies by topics / Poly(2-vinylpyridine)

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Reports

Academic literature on the topic 'Poly(2-vinylpyridine)'

Author: Grafiati
Published: 4 June 2021
Last updated: 12 February 2022

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Journal articles on the topic "Poly(2-vinylpyridine)"

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Han, Sung Hyun, Dong Hyun Lee, and Jin Kon Kim. "Phase Behavior of Poly(2-vinylpyridine)-block-poly(4-vinylpyridine) Copolymers." Macromolecules 40, no. 20 (October 2007): 7416–19. http://dx.doi.org/10.1021/ma071120v.

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Talingting, Maria Ruela, Petr Munk, S. E. Webber, and Zdenek Tuzar. "Onion-Type Micelles from Polystyrene-block-poly(2-vinylpyridine) and Poly(2-vinylpyridine)-block-poly(ethylene oxide)." Macromolecules 32, no. 5 (March 1999): 1593–601. http://dx.doi.org/10.1021/ma981269u.

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Cook, L. A., J. L. Hensley, E. G. Miller, and G. W. Tindall. "Determination of styrene and 2-vinylpyridine monomers in poly(2-vinylpyridine—styrene)." Journal of Chromatography A 463 (January 1989): 127–32. http://dx.doi.org/10.1016/s0021-9673(01)84459-9.

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Tonelli, A. E. "Conformational characteristics of poly(2-vinylpyridine)." Macromolecules 18, no. 12 (December 1985): 2579–83. http://dx.doi.org/10.1021/ma00154a037.

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Kowal, Joanna. "Hypochromism of poly(2-vinylpyridine), poly(2-vinylnaphthalene) and polyacenaphthylene." Polymer 38, no. 20 (September 1997): 5059–62. http://dx.doi.org/10.1016/s0032-3861(97)00021-9.

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CHOHAN, M. H., M. ASGHAR, M. MAZHAR, and U. RAFIQUE. "CONDUCTIVITIES OF POLY(2-VINYLPYRIDINE) MATRIX COMPOSITES." Modern Physics Letters B 06, no. 27 (November 20, 1992): 1755–60. http://dx.doi.org/10.1142/s0217984992001447.

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Poly(2-Vinylpyridine) and composites (with Zn and Hg as conductive components and Poly(2-Vinylpyridine) as a matrix polymer) have been synthesized to study the electrical behaviour of these materials. The current values have been monitored at different voltages and temperatures. On the basis of different current-voltage and current-temperature curves, it is suggested that the conduction mechanism in these materials is of Poole-Frenkel type. The activation energy value determined from the slope of ln I versus (kT)−1 is approximately 0.65 eV.
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Lee, Jaeyong, Jongheon Kwak, Chungryong Choi, Sung Hyun Han, and Jin Kon Kim. "Phase Behavior of Poly(2-vinylpyridine)-block-Poly(4-vinylpyridine) Copolymers Containing Gold Nanoparticles." Macromolecules 50, no. 23 (December 2017): 9373–79. http://dx.doi.org/10.1021/acs.macromol.7b01590.

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Lakouraj, M. Mansour, and A. Keyvan. "Polymer Supported Chromium Peroxide Complexes for the Selective Oxidation of Alcohols." Journal of Chemical Research 23, no. 3 (March 1999): 206–7. http://dx.doi.org/10.1177/174751989902300318.

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Poly(2-vinylpyridine)(I) and poly(4-vinylpyridine)(II) supported chromium peroxide reagents are readily prepared and used as mild, efficient, selective and easy to handle oxidizing agents for oxidation of benzylic and allylic alcohols.
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Lyons, A. M., S. Nakahara, M. A. Marcus, E. M. Pearce, and J. V. Waszczak. "Preparation of copper poly(2-vinylpyridine) nanocomposites." Journal of Physical Chemistry 95, no. 3 (February 1991): 1098–105. http://dx.doi.org/10.1021/j100156a016.

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Orhan, Tugba, and Jale Hacaloglu. "Thermal degradation of poly(2-vinylpyridine) copolymers." Polymer Degradation and Stability 98, no. 1 (January 2013): 356–60. http://dx.doi.org/10.1016/j.polymdegradstab.2012.09.006.

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

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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, as expected. The critical pH for this latex-to-microgel transition was around pH 4.1 at 1.0 wt. % DVB. The kinetics of swelling of these near-monodisperse, lightly cross-linked poly(2vinylpyridine) [PEGMA-P2VP] latexes was investigated by the pH jump method using a commercial stopped-flow instrument. The characteristic swelling time (tens of milliseconds) correlates linearly with the mean particle diameter, as predicted by the Tanaka equation. However, faster swelling was observed in the presence of added salt. This salt effect was not expected from Tanaka theory. Kinetics of deswelling for the PEGMA-P2VP microgel-to-Iatex transition was also investigated. Slower deswelling time scales of the order of hundreds of seconds were observed due to retarded salt excretion from the microgel. A near-monodisperse styrene-functionalised poly[2-(dimethylamino)ethyl methacrylate] [PDMA] macromonomer was evaluated as a reactive steric stabiliser for the preparation of P2VP latexes via emulsion polymerisation. The solution pH was shown to be a critical parameter for successful syntheses: stable latexes with minimal coagulum were only obtained at (or above) neutral pH. Combined DLS and electrophoretic data indicated that the PDMA-P2VP particles existed in three states depending on the solution pH: swollen microgels were obtained at low pH, non-solvated latex particles with a cationic stabiliser layer were obtained at intermediate pH and flocculated latex particles with neutral PDMA stabiliser chains were obtained at around pH 8.5. A PDMA-P2VP latex of 280 nm was shown to be an efficient pH-responsive Pickering emulsifier for stabilising water-in-1undecanol emulsions. Three near-monodisperse heavily cross-linked PEGMA-P2VP latexes of 380 nm, 640 nm and 820 nm diameter were prepared in tum by emulsion copolymerisation of 2VP and DVB (5.0 wt.%) using PEGMA macromonomer. Each of these latexes proved to be an effective particulate stabiliser for the production of long-lived foams generated by either hand-shaking or using foam columns. Dried foams prepared using the 380 nm latex exhibited interesting optical effects when viewed in reflectance mode. These PEGMAP2VP latex foams can be readily destabilised at low pH due to the latex-to-microgel transition. Finally, solution viscosities of PEGMA-P2VP microgels prepared with lower levels of DVB cross-linker were measured at low pH. Free-standing gels were obtained for aqueous solutions of PEGMA-P2VP particles prepared with 0.16 wt.% of DVB crosslinker at 1.0 w/v % and pH 3.4. However, no gels could be formed in the presence of added salt, even at salt concentrations as low as 0.01 M NaC!. Copolymerisation of 2VP with either methyl acrylate or ethyl acrylate did not alleviate this salt sensitivity.
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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
poly(4-vinylpyridine), P4VP, and poly(2-vinylpyridine), P2VP, the diblock copolymers
polystyrene-blockpoly( 2-vinylpyridine), (PS-b-P2VP) and polystyrene-block-poly(4-vinylpyridine), (PS-b-P4VP), and the metal functional vinyl polymers
cobalt-polystyrene-blockpoly( 2-vinylpyridine) and cobalt-polystyrene-block-poly(4-vinylpyridine) were investigated by direct pyrolysis mass spectrometry. The effects of the position of the nitrogen in the pyridine ring, composition and molecular weight of diblock copolymer and coordination of the metal to the pyridine ring of the copolymer on thermal behavior were also investigated. The results showed that unlike most of the vinyl polymers that decompose via depolymerization, P2VP degrades through opposing reaction pathways
depolymerization, proton transfer to N atom in the pyridine ring yielding unsaturated linkages on the polymer backbone that decompose slightly at higher temperatures and loss of pyridine units. On the other hand the thermally less stable P4VP decomposition follows v depolymerization in accordance to general expectations. Another finding was the independent decomposition of both components of the diblock polymers, (PS-b- P2VP) and (PS-b-P4VP). Thermal degradation occurs in two main steps, the thermally less stable P2VP or P4VP chains degrade in the first step and in the second step decomposition of PS takes place. It was also concluded that upon coordination of metal, thermal stability of both P2VP and P4VP increases significantly. For metal functional diblock copolymers thermal degradation of chains coordinated to Co metal through N in the pyridine ring occurred in three steps
cleavage of pyridine coordinated to Co, coupling and H-transfer reactions yielding unsaturated and/or crosslinked structure and decomposition of these thermally more stable unsaturated and/or crosslinked blocks. TEM imaging of the metal functional block copolymers along with the results of the pyrolysis mass spectrometry pointed out that PS-b-P2VP polymer is a better and more effective matrix for nanoparticle synthesis.
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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 spécifiquement, les travaux de thèse ont porté sur l’étude de copolymères triblocs linéaires ISP (PI-b-PS-b-P2VP) (seuls ou en mélanges) en films minces, déjà étudié en volume par un laboratoire partenaire de l’Université de Nagoya. Nous avons développé des méthodes de caractérisation adaptées à ce polymère en film mince, en particulier une technique originale de GISAXS reposant sur le marquage sélectif des blocs par des éléments lourds (iode, osmium). Ceci nous a permis de confirmer la structure interne et la forme de l’interface (rayon de courbure) des domaines minoritaires, d’observer des transitions structurales originales. La présence de couches de mouillage aux deux interfaces du film (film/air et film/substrat) est une caractéristique commune à tous les systèmes.Tout d’abord, des triblocs seuls, se trouvant à la limite des différentes morphologies sur le diagramme de phase, ont été étudiés en film mince. Contrairement à ce qui a été observé en volume, des transitions structurales (CYL-SPH et GYD-CYL) ont été observées. Notamment, la transition d’une structure gyroïde alternée présentant une symétrie Q214 vers des cylindres avec une symétrie P2mm (pas d’arrangement typique hexagonal) représente, pour des terpolymères triblocs, un des résultats majeurs de la thèse. Le mécanisme de transition structurale a été élucidé par différentes techniques de caractérisation montrant une relation d’épitaxie entre les deux phases. Ensuite, nous nous sommes focalisés sur la nanostructuration de mélanges de triblocs. Nous avons montré la possibilité d’obtenir des domaines minoritaires de PI et P2VP présentant des interfaces rectangulaires, arrangés avec une symétrie tétragonale, ouvrant la voie à des applications potentielles dans le domaine de nanolithographie
In this thesis, we focused on preparing nanostructured thin films from block copolymers and characterizing them by different techniques (AFM, TEM and GISAXS). The goal of the research is to produce original nanostructuration in thin films in order to consider the effect of confinement (limited amount of matter, interaction with surface ...) and to understand the phenomena occurring during structuration. The work includes the elaboration of thin films, their reorganization under solvent vapor and their characterization.Specifically, the thesis focused on the study of ISP linear triblock copolymers (PI-b-PS-b-P2VP) (neat or in blends) in thin films, already studied in volume by a partner laboratory of the Nagoya University. We developed adapted characterization methods to this type of polymer in thin film, such as an original method of GISAXS based on the selective staining of blocks by heavy elements (iodine, osmium). This allowed us to confirm the internal structure and the shape of interface of the minority domains and to observe original transitions between morphologies. The presence of wetting layers at both film interfaces (film / air and film / substrate) is a common feature for all systems.Firstly, neat triblocks located on the boundary between different morphologies on the phase diagram, were studied in thin film. Contrary to what was observed in volume, structural transitions (CYL-SPH and GYD-CYL) were observed in thin film. Particularly, the transition from an alternating gyroid structure having a Q214 symmetry to cylinders with symmetry P2mm (no typical hexagonal arrangement) represents, for triblock terpolymers, one of the major results of the thesis. The structural transition mechanism was elucidated by different characterization techniques showing an epitaxial relationship between the two phases. Secondly, we focused on the nanostructuration of triblock blends. We showed the possibility to obtain minority domains of PI and P2VP with rectangular interfaces, arranged with tetragonal symmetry, opening the way for potential applications in the field of nanolithography
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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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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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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.

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 divers groupes de chercheurs partout dans le monde. Chacun des laboratoires s'est attaché à l'étude d'une propriété ou d'un paramètre particulier et il est assez difficile de synthétiser ces résultats. Nous avons relevé la liste des paramètres importants ayant une influence tant au point de vue des propriétés de conductivité des dépôts obtenus qu'en ce qui concerne leurs propriétés mécaniques, leur morphologie et leur adhérence au substrat. Ces paramètres comprennent la nature du substrat sur lequel on réalise l'électropolymérisation, le type de solvant, le type et la concentration en électrolyte support dans la solution, la concentration en monomère, les conditions de synthèse (mode potentiostatique, intensiostatique ou balayage en potentiel, durée de maintien du potentiel ou de la densité de courant, valeur de ce potentiel ou de cette densité de courant ou encore vitesse du balayage en potentiel, température), etc. Il faut d'ailleurs signaler qu'il existe bien entendu des influences croisées, entre autres entre la morphologie, la conductivité, la couleur et le taux de dopage.

Le choix d'un composé doit se faire en tenant compte des propriétés intrinsèques et de l'usage que l'on veut faire du polymère obtenu. Le choix des paramètres de synthèse devra résulter d'un compromis puisque plusieurs propriétés des films sont influencées en sens divers par ces paramètres. Par exemple, une structure plus régulière, et donc a priori plus conductrice, semble être obtenue par augmentation de la taille du contre-ion dopant dans le cas du pyrrole, mais le changement de nature du contre-ion peut également faire varier le taux d'insertion de ceux-ci dans le polymère, facteur qui aura aussi un effet sur la conductivité et sur la morphologie du film formé. Le type de substituant et sa position sur le monomère sont aussi à prendre en considération.

Le premier composé envisagé dans la partie expérimentale est la 2-vinylpyridine. Ce cas a été choisi parce qu'il s'agissait d'une électropolymérisation par réduction, méthode qui nous paraissait intéressante puisqu'elle présente l'avantage d'éviter tout risque d'oxydation du substrat lors de la formation du film. La réaction secondaire de dégagement d'hydrogène simultanée à la formation du film nous a cependant conduit à la conclusion que ce procédé n'offrait pas que des avantages.

Les films de poly-2-vinylpyridine formés semblent être constitués de polymères à assez faible degré de polymérisation et relativement adhérents au substrat métallique, mais présentent l'inconvénient d'être poreux et irréguliers du fait du dégagement d'hydrogène gazeux au cours du processus de synthèse. Ils sont constitués principalement de carbone et d'azote, et ce dans un rapport proche de celui du monomère. D'après les comparaisons des spectres infrarouge et ultraviolet de ces films avec ceux de poly-2-vinylpyridines obtenues par voie chimique, il s'agirait bien de ce composé. Bien que notre but n'était pas de déduire le mécanisme conduisant à la formation du polymère, nous avons pu déterminer que la réduction conduisant à la formation de ces dépôts nécessitait un échange d'un électron par molécule de monomère présente dans la chaîne polymérique. La conductivité électronique des films est faible. Leur croissance aurait plutôt lieu par un mécanisme ionique dans lequel des molécules de monomère pourraient diffuser au travers de la couche polyédrique déjà formée et qui, une fois chargées, pourraient soit se combiner à d'autres monomères au niveau du substrat, soit diffuser dans le film et aller former du polymère à sa surface, au contact de la solution d'électropolymérisation.

Parmi les composés qui peuvent être obtenus lors d'une électropolymérisation par oxydation, nous avons choisi le pyrrole qui nous a semblé particulièrement intéressant pour une application de protection vis-à-vis de la corrosion de l'acier doux. Ce dérivé hétéroaromatique possède en effet, par rapport à ses homologues thiophène et furanne, un potentiel d'oxydation relativement peu élevé, c'est-à-dire peu anodique. Il est de plus bien soluble dans des milieux aqueux et possède de bonnes propriétés d'adhérence pour autant qu'il soit formé en présence d'électrolyte conduisant à la passivation du fer. Son électropolymérisation n'est pas inhibée par la présence d'eau comme c'est le cas du thiophène. Les propriétés mécaniques du polypyrrole, meilleures que celles de la polyaniline qui est également obtenue par oxydation électrochimique, constituent également un élément en sa faveur.

Parmi les solutions dignes d'intérêt pour la polymérisation électrochimique de ce monomère, le cas de la solution aqueuse d'acide oxalique s'est révélé particulièrement intéressant. Elle permet en effet la formation d'un film passivant d'oxalate de fer sur le substrat, suivie d'un dépôt polymérique très adhérent, noir et conducteur.


Doctorat en sciences appliquées
info:eu-repo/semantics/nonPublished

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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 as sensors. In this work, we have successfully synthesized two hairy nanoparticles both of which has cross-linked polystyrene core with helical poly (3- methyl 4- vinyl pyridine) and poly (2- methoxystyrene) brushes respectively by living anionic polymerization via one-pot synthesis. NMR spectroscopy was used to determine that polymerization was successful and compositions of HNPs have the agreement with the targeted HNPs structure. By tailoring the architecture (functionalization of polymer chains, the degree of polymerization, grafting density) of HNPs, it is possible to control the final properties of the system. Differential Scanning Calorimetry was used to demonstrate the thermal properties of the synthesized HNPs which corresponds to polymer composition. Dynamic light scattering, SEM and AFM images were recorded to measure the particle size and morphology of the particles. Circular dichroism spectroscopy was used to determine the induced chirality of helical polymer brushes by complexing it with the small chiral molecule. SEM and AFM imaging were recorded to find out the morphology and hierarchically self-assembly of the hairy nanoparticle system. The synthesized particles may have great potential to successfully generate self-assembled suprastructures which can further solve the chiral resolution problem and can also find different applications.
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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 interdisziplinären Forschung, wie z.B. in Hinblick auf das Lab-on-Chip Design oder die Biomedizin
Polymer brushes represent sensitive coatings with thicknesses of few nanometres and are interesting for interdisciplinary scientific research, e.g. for intelligent lab-on-chip design or biotechnology. It is demonstrated in this work, that polymer brushes are able to change their surface properties depending on the ambient conditions like solvent quality, temperature or pH value. This sensitivity highly influenced the adsorption of bio molecules. Especially mixed polymer brushes enabled the tuning of the adsorbed amount of various proteins and cells. To create surface gradients or structures in the different polymer brush surfaces, controlled electron beam modification was applied
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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 investigation of phenomena, associated with the nanometer–sized objects.It was found in this work that grafted chains of poly(2-vinylpyridine) form a shell covering the carbon nanotubes that makes them dispersible in organic solvents and in acidic water (CNTs-g-P2VP).The positively charged poly(2-vinylpyridine) shell is responsible for the selective deposition of carbon nanotubes onto oppositely charged surfaces. It was established that the deposition CNTs-g-P2VP from aqueous dispersions at low pH is an effective method to prepare ultra-thin films with a tunable density of carbon nanotubes.It was shown that poly(2-vinylpyridine) grafted to carbon nanotubes is a universal support for the immobilization of various nanoclusters at the carbon nanotube's surface. Prussian Blue nanoparticles were selectively attached to the surface of CNTs-g-P2VP.Conducting polymer nanowires are another very promising kind of nanomaterials that could be also suitable for applications in nanodevices and nanosensors. In this work was developed a simple method to control the conformation and orientation of single adsorbed polyelectrolyte molecules by co-deposition with octylamine. A simple chemical route to conductive polypyrrole nanowires by the grafting of polypyrrole from molecules of polystyrensulfonic acid was developed. The dc conductivity of individual polypyrrole nanowires approaches the conductivity of polypyrole in bulk.The conductivity can be described using variable-range hopping model.
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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 investigation of phenomena, associated with the nanometer–sized objects.It was found in this work that grafted chains of poly(2-vinylpyridine) form a shell covering the carbon nanotubes that makes them dispersible in organic solvents and in acidic water (CNTs-g-P2VP).The positively charged poly(2-vinylpyridine) shell is responsible for the selective deposition of carbon nanotubes onto oppositely charged surfaces. It was established that the deposition CNTs-g-P2VP from aqueous dispersions at low pH is an effective method to prepare ultra-thin films with a tunable density of carbon nanotubes.It was shown that poly(2-vinylpyridine) grafted to carbon nanotubes is a universal support for the immobilization of various nanoclusters at the carbon nanotube's surface. Prussian Blue nanoparticles were selectively attached to the surface of CNTs-g-P2VP.Conducting polymer nanowires are another very promising kind of nanomaterials that could be also suitable for applications in nanodevices and nanosensors. In this work was developed a simple method to control the conformation and orientation of single adsorbed polyelectrolyte molecules by co-deposition with octylamine. A simple chemical route to conductive polypyrrole nanowires by the grafting of polypyrrole from molecules of polystyrensulfonic acid was developed. The dc conductivity of individual polypyrrole nanowires approaches the conductivity of polypyrole in bulk.The conductivity can be described using variable-range hopping model.
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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
國立臺灣大學
高分子科學與工程學研究所
93
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 P3HT or blend. A red-shift was observed due to the aggregation of P3HT when a poor solvent, methanol, was added into pure P3HT or blend dissolved in THF. However, the optical spectra of block-copolymer did not change when they were dissolved either in tetrahydrofuran (THF) or methanol. The chemical bond between P3HT and P2VP in the copolymer has retarded the aggregation of P3HT in poor solvent. The decomposition temperatu of copolymer was greatly improved as compared with the neat P2VP, even with only a small amount of 2wt％ P3HT, from 352℃ to 381℃. This copolymer containg 2wt％ P3HT exhibitsa spherical morphology. In conclusion, we have synthesized P3HT-b-P2VP copolymer which will be used in photovoltaics.
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Book chapters on the topic "Poly(2-vinylpyridine)"

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Wohlfarth, Ch. "Solubility parameter of poly(2-vinylpyridine)." In Polymer Solutions, 1679. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02890-8_1030.

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Wohlfarth, Ch. "Second virial coefficient of poly(2-vinylpyridine)." In Polymer Solutions, 1256. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02890-8_749.

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Wohlfarth, Ch. "Partial specific volume of poly(2-vinylpyridine)." In Polymer Solutions, 536. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02890-8_310.

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Lyons, A. M., E. M. Pearce, M. J. Vasile, A. M. Mujsce, and J. V. Waszczak. "Copper Chloride Complexes with Poly(2-vinylpyridine)." In ACS Symposium Series, 430–36. Washington, DC: American Chemical Society, 1988. http://dx.doi.org/10.1021/bk-1988-0360.ch035.

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Wohlfarth, Ch. "Second virial coefficient of poly(2-vinylpyridine-1-oxide)." In Polymer Solutions, 1264–65. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02890-8_751.

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Wohlfarth, Ch. "Second virial coefficient of poly(2-methyl-5-vinylpyridine)." In Polymer Solutions, 1009–10. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02890-8_626.

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Wohlfarth, Ch. "Vapor-liquid equilibrium data of poly(4-vinylpyridine) in 2-propanol." In Polymer Solutions, 2466–70. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-88057-8_494.

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Wohlfarth, Ch. "Vapor-liquid equilibrium data of poly(4-vinylpyridine) in 2-methyl-2-propanol." In Polymer Solutions, 2461–65. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-88057-8_493.

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Wohlfarth, Ch. "Vapor-liquid equilibrium data of poly(4-vinylpyridine-co-styrene) in 2-propanol." In Polymer Solutions, 2481–85. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-88057-8_497.

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Lončarević, D., and Ž. Čupić. "Characterization and Catalytic Activity of Poly(4-Vinylpyridine-Co-Divinylbenzene)-Co2+ Complex." In Materials Science Forum, 363–68. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-971-7.363.

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Reports on the topic "Poly(2-vinylpyridine)"

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Orlov, Maxim, Ihor Tokarev, Andreas Scholl, Andrew Doran, and Sergiy Minko. pH-Responsive Thin Film Membranes from Poly(2-vinylpyridine): Water Vapor-Induced Formation of a Microporous Structure. Fort Belvoir, VA: Defense Technical Information Center, March 2007. http://dx.doi.org/10.21236/ada482321.

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