Log in

Relevant bibliographies by topics / Conjugated Copolymers / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Conjugated Copolymers.

Dissertations / Theses on the topic 'Conjugated Copolymers'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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 'Conjugated Copolymers.'

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

Mulherin, Rhiannon Clare. "Fully conjugated diblock copolymers for photovoltaic devices." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610724.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Cottle, Matthew Robert Ashby Valerie. "Synthesis of novel conjugated polymers and copolymers." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2008. http://dc.lib.unc.edu/u?/etd,1802.

Full text

Abstract:

Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2008.<br>Title from electronic title page (viewed Dec. 11, 2008). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Chemistry." Discipline: Chemistry; Department/School: Chemistry.

APA, Harvard, Vancouver, ISO, and other styles

3

Chun, Cindy Patricia. "Poly(methylenephosphine)s : homo- and copolymers bearing conjugated substituents." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/7710.

Full text

Abstract:

New P-Mes (Mes = 2,4,6-trimethyiphenyl) phosphaalkenes bearing conjugated C substituents have been prepared: MesP=C(Naph)(Ph) (Naph = 1-naphthyl) (la), MesP=C(Phen)(Ph) (Phen = 9-phenanthrenyl) (ib), and MesP=C(C₄H₃S)(Ph)(C₄H₃S= 2- thienyl) (lc). Compounds la and ic were prepared by the base-catalyzed phospha-Peterson reaction, whereas lb was prepared via the standard phospha-Peterson route. Anionic polymerization of la and lb afforded [MesP—C(Naph)(Ph)] (2a) and [MesP—C(Phen)(Ph)] (2b), respectively. The anionic polymerization of ic was attempted, but there was no polymer formation. Poly(meth

APA, Harvard, Vancouver, ISO, and other styles

4

Oriou, Jules. "Synthesis and structure-properties relationship of alternated π-conjugated copolymers". Phd thesis, Université Sciences et Technologies - Bordeaux I, 2013. http://tel.archives-ouvertes.fr/tel-01070649.

Full text

Abstract:

Tout au long du siècle dernier, l'électronique s'est révélé être un progrès technologique majeur, et ses applications sont tellement nombreuses qu'elles ont envahi notre vie de tous les jours. De par leurs propriétés bien spécifiques, les semi-conducteurs organiques représentent une remarquable alternative aux matériaux inorganiques utilisés actuellement. Cependant, leurs propriétés électriques peuvent être limitées, et l'efficacité des dispositifs composés de tels matériaux ne permet pas encore de rivaliser avec ceux basés sur des matériaux inorganiques. Dans ce contexte, ce travail de thèse

APA, Harvard, Vancouver, ISO, and other styles

5

Schütze, Friederike [Verfasser]. "Fluorescent Nanoparticles from Amphiphilic Block Copolymers with Conjugated Segments / Friederike Schütze." Konstanz : Bibliothek der Universität Konstanz, 2016. http://d-nb.info/1115727494/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Marques, Ana Teresa [Verfasser]. "Ionic donor/acceptor conjugated copolymers for optoelectronic applications / Ana Teresa Marques." Wuppertal : Universitätsbibliothek Wuppertal, 2012. http://d-nb.info/1026129451/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Kaya, Deniz Tugba. "Solution Processable Benzotriazole, Benzimidazole And Biphenyl Containing Conjugated Copolymers For Optoelectronic Applications." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614753/index.pdf.

Full text

Abstract:

The synthesis and optoelectronic properties of biphenyl based conjugated copolymers with varying acceptor units in the polymer backbone were investigated. The well known Donor-Acceptor Theory was used to establish the synthetic pathway for the structural modifications. Solubility issues regarding biphenyl polymer was solved by copolymerizing with soluble units. For this purpose<br>poly 4-(biphenyl-4-yl)- 4&rsquo<br>-tert butylspiro[benzo[d]imidazole-2,1&rsquo<br>-cyclohexane] (P1), poly 4-(biphenyl-4-yl)- 2- dodecyl-2H-benzo[d][1,2,3]triazole (P2) and poly(4-(5-(biphenyl-4-yl)-4-hexylthiophen-

APA, Harvard, Vancouver, ISO, and other styles

8

Huynh, Uyen N. V., Tek P. Basel, Eitan Ehrenfreund та ін. "Transient Magnetophotoinduced Absorption Studies of Photoexcitations in π-Conjugated Donor-Acceptor Copolymers". AMER PHYSICAL SOC, 2017. http://hdl.handle.net/10150/624900.

Full text

Abstract:

We have utilized a plethora of transient and steady state optical and magneto-optical spectroscopies in a broad spectral range (0.25-2.5 eV) for elucidating the primary and long-lived photoexcitations in a low band-gap pi-conjugated donor-acceptor (DA) copolymer used for efficient photovoltaic solar cells. We show that both singlet excitons (SE) and intrachain triplet-triplet (TT) pairs are photogenerated in the DA-copolymer chains. From the picosecond transient magnetic field response of these species we conclude that the SE and TT spin states are coupled. The TT decomposition into two intrac

APA, Harvard, Vancouver, ISO, and other styles

9

Smith, Emma L. "Probing physical and spectroscopic properties of electrochromic conjugated polymers, copolymers and layered structures." Thesis, Loughborough University, 2007. https://dspace.lboro.ac.uk/2134/33779.

Full text

Abstract:

This work details the properties of a copolymer system comprising the ethylenedioxythiophene (EDOT) and bithiophene (BT) monomers. By applying a number of characterisation techniques to various aspects of the copolymer system an insight into its behaviour during redox cycling has been gained. If a copolymer is grown from a feed solution containing two different monomers, the mole fraction of monomers in the resulting copolymer will be determined by the composition of the feed solution and the relative reactivities of the two monomers. Only a small range of feed solutions yield copolymers conta

APA, Harvard, Vancouver, ISO, and other styles

10

Kynaston, Emily L. "Functional nanomaterials from the crystallisation driven self-assembly of π-conjugated block copolymers". Thesis, University of Bristol, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.686240.

Full text

Abstract:

The work presented in this Thesis focuses on the solution-phase self-assembly behaviour of a series of di- and triblock copolymers with semicrystalline, π-conjugated segments, namely poly(3-alkylthiophene) (P3AT) and poly(3-alkylselenophene) (P3ASe) derivatives. Our group has shown that crystallisation-driven self-assembly (CDSA) of P3AT and P3ASe block copolymers (BCPs) in block-selective solvents allows access to colloidally-stable nanofibers with π-conjugated cores. In this thesis, we demonstrate that the contour length of P3ASe nanofibers can be controlled using a seeded-growth technique.

APA, Harvard, Vancouver, ISO, and other styles

11

Herguth, Petra. "Development and synthesis of luminescent conjugated copolymers and their fabrication into polymer light-emitting diodes /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/10587.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Kalloudis, Michail. "Thin polymer films of block copolymers and blend/nanoparticle composites." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/7894.

Full text

Abstract:

In this thesis, atomic force microscopy (AFM), transmission electron microscopy (TEM) and optical microscopy techniques were used to investigate systematically the self-assembled nanostructure behaviour of two different types of spin-cast polymer thin films: poly(isoprene-b-ethylene oxide), PI-b-PEO diblock copolymers and [poly(9,9-dioctylfluorene-co-benzothiadiazole)]:poly[9,9- dioctyfluorene-co-N-(4-butylphenyl)-diphenylamine], F8BT:TFB conjugated polymer blends. In the particular case of the polymer blend thin films, the morphology of their composites with cadmium selenide (CdSe) quantum do

APA, Harvard, Vancouver, ISO, and other styles

13

Studnicki, Lisa Helen [Verfasser], Elisabeth [Gutachter] Klemm та Oskar [Gutachter] Nuyken. "Synthesis of new alternating block copolymers with tailored π-conjugated blocks and non-conjugated aliphatic spacers / Lisa Helen Studnicki ; Gutachter: Elisabeth Klemm, Oskar Nuyken". Jena : Friedrich-Schiller-Universität Jena, 2007. http://d-nb.info/1205740864/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Kaya, Emine. "Solution Processable Benzotriazole And Fluorene Containing Copolymers For Photovoltaic Applications." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613561/index.pdf.

Full text

Abstract:

2-Dodecyl benzotriazole and 9,9-dioctylfluorene containing alternating copolymers poly((9,9-dioctylfluorene)-2,7-diyl-(2-dodecyl-benzo[1,2,3]triazole)) (P1), poly((9,9-dioc-tylfluorene)-2,7-diyl-(4,7-bis(thien-2-yl) 2-dodecyl benzo[1,2,3]triazole)) (P2), poly((9,9 dioctylfluorene)-2,7-diyl-(4,7-bis(3-hexylthien-5-yl) 2-dodecyl-benzo[1,2,3]triazole)) (P3) were synthesized via Suzuki polycondensation. Synthesized monomers and copolymers were characterized by Nuclear Magnetic Resonance (1H-NMR, 13C-NMR). Optical and electronic properties of resulting alternating copolymers were investigated by me

APA, Harvard, Vancouver, ISO, and other styles

15

Watters, Darren C. "Characterisation and optimisation of donor-acceptor conjugated copolymers for applications in bulk heterojunction organic solar cells." Thesis, University of Sheffield, 2014. http://etheses.whiterose.ac.uk/6306/.

Full text

Abstract:

This thesis describes the development of donor-acceptor conjugated copolymer fullerene blends for applications in bulk heterojunction organic solar cells. The characterisation of the optoelectronic properties of the blends as well as the optimisation of such materials into organic photovoltaic (OPV) devices is described. The use of a composite cathode structure (in which a thin layer of calcium is backed by an optically thick layer of aluminium) for OPV application is presented. It is shown that this cathode structure optimise the power conversion efficiencies of PCDTBT based OPVs. The optimis

APA, Harvard, Vancouver, ISO, and other styles

16

Wang, Yiqing. "Grafted and Crosslinkable Polyphenyleneethynylene: Synthesis, Properties and Their Application." Diss., Available online, Georgia Institute of Technology, 2005, 2005. http://etd.gatech.edu/theses/available/etd-11282005-115303/.

Full text

Abstract:

Thesis (Ph. D.)--Chemistry and Biochemistry, Georgia Institute of Technology, 2006.<br>Tolbert, Laren, Committee Member ; Perahia, Dorva, Committee Member ; Perry, Joseph, Committee Member ; Collard, David, Committee Member ; Bunz, Uwe, Committee Chair.

APA, Harvard, Vancouver, ISO, and other styles

17

Bazzi, Hassan Said. "Synthesis and self-assembly of conjugated and biomimetic polymers and block copolymers via ring-opening metathesis polymerization." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=42326.

Full text

Abstract:

We have used the living ring-opening metathesis polymerization (ROMP) reaction with C12(PCy3)2Ru=CHPh to generate a new class of conjugated polymer precursors containing the reactive group 1,2-dichlorocarbonate in their backbone. These polymers possess narrow molecular weight distributions and are easily processable. We have incorporated the 1,2-dichlorocarbonate monomers into block copolymers and have shown that these systems can self-assemble in selective solvents to generate spherical micellar aggregates, as observed by transmission electron microscopy (TEM). Mild hydrolytic treatment of th

APA, Harvard, Vancouver, ISO, and other styles

18

Erdmann, T., J. Back, R. Tkachov, et al. "Dithienosilole-based all-conjugated block copolymers synthesized by a combination of quasiliving Kumada and Negishi catalyst-transfer polycondensations." Royal Society of Chemistry, 2014. https://tud.qucosa.de/id/qucosa%3A36424.

Full text

Abstract:

Herein, we present a quasi-living Negishi-type catalyst-transfer polycondensation of a zinc–organic DTSbased monomer which provides an access to narrowly distributed poly(4,4-bis(2-ethylhexyl)dithieno[3,2-b:20,30-d]silole (PDTS) with controlled molecular weight. The synthesis of well-defined all-conjugated diblock copolymers containing a PDTS block was accomplished by a combination of Kumada and Negishi catalyst-transfer polycondensations (KCTP and NCTP, respectively). Particularly, it was shown that living P3HT chains obtained by KCTP of magnesium–organic thiophene-based monomer efficiently i

APA, Harvard, Vancouver, ISO, and other styles

19

Idriss, Hisham. "Elaboration de copolymères à blocs rigide-rigide à base de polymères absorbant dans le proche infra-rouge pour l’électronique organique." Thesis, Pau, 2020. http://www.theses.fr/2020PAUU3017.

Full text

Abstract:

De nos jours, dans le cadre de développement des cellules solaires, un sujet d'intérêt est l'utilisation de polymères à large absorption étendue au proche infrarouge afin de récolter plus efficacement les photons. Ainsi, nous avons concentré nos études sur une méthode de couplage efficace et simple pour synthétiser des copolymères à diblocs tout conjugués. Cette méthode est basée sur la polycondensation de couplage Stille de monomères A-A (dithiénosilole, DTS) et B-B (dicétopyrrolopyrrole, DPP ou diazapentalène, DAP) avec du P3HT comme un agent de « end capping ». Les copolymères diblocs et tr

APA, Harvard, Vancouver, ISO, and other styles

20

Gapin, Adèle. "Elaboration of functional copolymers absorbing in the near infrared region." Thesis, Pau, 2020. http://www.theses.fr/2020PAUU3034.

Full text

Abstract:

De nos jours, les matériaux organiques absorbant dans la région du proche infrarouge ont trouvé un terrain fertile dans une variété d'applications et ont contribué de manière significative à l'amélioration des dispositifs optoélectroniques, de la bioimagerie, de la biodétection et des thérapies biomédicales. Le développement de polymères à faible bande interdite retient particulièrement l'attention car leurs bandes interdites réduites conduisent à des propriétés optiques et électroniques intéressantes. La fonctionnalisation de ces polymères conjugués en bout de chaînes ouvre la voie au dévelop

APA, Harvard, Vancouver, ISO, and other styles

21

Woody, Kathy Beckner. "Design, synthesis and characterization of self-assembling conjugated polymers for use in organic electronic applications." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/43627.

Full text

Abstract:

Conjugated polymers comprise some of the most promising materials for new technologies such as organic field effect transistors, solar light harvesting technology and sensing devices. In spite of tremendous research initiatives in materials chemistry, the potential to optimize device performance and develop new technologies is remarkable. Understanding relationships between the structure of conjugated polymers and their electronic properties is critical to improving device performance. The design and synthesis of new materials which self-organize into ordered nanostructures creates opportuniti

APA, Harvard, Vancouver, ISO, and other styles

22

Lidster, Benjamin John. "Synthesis and characterisation of block copolymers and cyclic polymers containing poly(p-phenylenevinylene)s." Thesis, University of Manchester, 2015. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:247427.

Full text

Abstract:

Conjugated organic polymers have attracted immense interest for use in the active layer of photovoltaic cells, electroluminescent displays and diagnostic sensors. Precise control of the chemical structure of these conjugated materials is essential to achieve better device performance and certain structural aspects which have received minimal investigation include; the nature of the end groups, the precise control of the molecular weight and the formation of novel polymer topologies. Absolute control of these factors, in particular the end groups, has the potential to further tune the electro-o

APA, Harvard, Vancouver, ISO, and other styles

23

Seger, Mark J. "OPTIMIZATION OF THE OPTICAL AND ELECTROCHEMICAL PROPERTIES OF DONOR-ACCEPTOR COPOLYMERS THROUGH FUNCTIONAL GROUP AND SIDE CHAIN MODIFICATION." UKnowledge, 2013. http://uknowledge.uky.edu/chemistry_etds/25.

Full text

Abstract:

Donor-acceptor copolymers have received a great deal of attention for application as organic semiconductors, in particular as the active layers in low-cost consumer electronics. The functional groups grafted to the polymer backbones generally dictate the molecular orbital energies of the final materials as well as aid in self-assembly. Additionally, the side chains attached to these functional groups not only dictate the solubility of the final materials, but also their morphological characteristics. The bulk of the research presented in this dissertation focuses on the synthesis and structure

APA, Harvard, Vancouver, ISO, and other styles

24

Bilkay, Taybet. "Thiophen und Benzodithiophen basierte organische Halbleiter für aus Lösung prozessierbare Feldeffekttransistoren." Phd thesis, Universität Potsdam, 2013. http://opus.kobv.de/ubp/volltexte/2013/6616/.

Full text

Abstract:

Diese Arbeit befasst sich mit der Synthese und Charakterisierung von organolöslichen Thiophen und Benzodithiophen basierten Materialien und ihrer Anwendung als aktive lochleitende Halbleiterschichten in Feldeffekttransistoren. Im ersten Teil der Arbeit wird durch eine gezielte Modifikation des Thiophengrundgerüstes eine neue Comonomer-Einheit für die Synthese von Thiophen basierten Copolymeren erfolgreich dargestellt. Die hydrophoben Hexylgruppen in der 3-Position des Thiophens werden teilweise durch hydrophile 3,6-Dioxaheptylgruppen ersetzt. Über die Grignard-Metathese nach McCullough werden

APA, Harvard, Vancouver, ISO, and other styles

25

Otsuka, Yoko. "Films minces nanostructurés de domaines sub-10 nm à partir de copolymères biosourcés pour des applications dans le photovoltaïque organique." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAV024/document.

Full text

Abstract:

La structuration nanométrique par l'auto-assemblage des copolymères à blocs est l'une des stratégies « bottom-up » prometteuses pour contrôler la morphologie de la couche active de cellules photovoltaïques organiques. Dans cette thèse, une nouvelle classe de copolymère constitué d’un bloc semi-conducteur π-conjugué poly(3-hexylthiophène) (P3HT) regioregulier et d’un bloc oligosaccharidique a été synthétisée et a montré une auto-organisation en nanostructures périodiques de domaine inférieure à 10 nm. Deux systèmes de copolymères à blocs ont été synthétisés, le P3HT-bloc-maltoheptaose peracétyl

APA, Harvard, Vancouver, ISO, and other styles

26

Keane, Richard. "HPMA copolymer-aminoellipticine conjugates : mechanism of action." Thesis, University College London (University of London), 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269617.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Yonkeu, Anne Lutgarde Djoumessi. "Dendritic poly(3-hexylthiophene) star copolymer systems for next generation bulk heterojunction organic photovoltaic cells." University of the Western Cape, 2018. http://hdl.handle.net/11394/6662.

Full text

Abstract:

Philosophiae Doctor - PhD<br>The continuous increase in energy consumption and decrease in fossil fuels reserves are a primary concern worldwide; especially for South Africa. Therefore, there is an urgent need for alternative energy resources that will be sustainable, and environmentally friendly in order to tackle the ecological degradation generated by the use of fossil fuels. Among many energy ‘niches’, solar energy appears to be one of the most promising and reliable for the African continent because of the constant availability of sun light. Organic conjugated polymers have been identifie

APA, Harvard, Vancouver, ISO, and other styles

28

Allehyani, Esam. "Synthesis and Characterization of PEO-PS-PEO Triblock Copolymer Conjugated with Ni-NTA for Biosensors." DigitalCommons@Robert W. Woodruff Library, Atlanta University Center, 2018. http://digitalcommons.auctr.edu/cauetds/157.

Full text

Abstract:

Poly(ethylene oxide)-poly(styrene)-poly(ethylene oxide) triblock copolymer with di-hydroxyl terminated groups (HO-PEO-PS-PEO-OH) was conjugated with nitrilotriacetic acid (NTA) via esterification reaction using N,N'-Dicyclohexylcarbodiimide (DCC), 4-Dimethylaminopyridine (DMAP) and Dimethylformamide (DMF) as a solvent at 80 ○C. The poly(ethylene oxide)-poly(styrene)-poly(ethylene oxide) with NTA end groups (NTA-PEO-PS-PEO-NTA) was characterized and structure confirmed by 1H NMR, 13C NMR, and FT-IR spectroscopies. Thermogravimetric analysis (TGA) was carried out to investigate the thermal stabi

APA, Harvard, Vancouver, ISO, and other styles

29

Ferebee, Rachel L. "Elucidation of the Structure Formation of Polymer-Conjugated Proteins in Solution and Block Copolymer Templates." Research Showcase @ CMU, 2016. http://repository.cmu.edu/dissertations/751.

Full text

Abstract:

The broader technical objective of this work is to contribute to the development of enzymefunctionalized nanoporous membranes that can function as autonomous and target selective dynamic separators. The scientific objective of the research performed within this thesis is to elucidate the parameters that control the mixing of proteins in organic host materials and in block copolymers templates in particular. A “biomimetic” membrane system that uses enzymes to selectively neutralize targets and trigger a change in permeability of nanopores lined with a pHresponsive polymer has been fabricated an

APA, Harvard, Vancouver, ISO, and other styles

30

Stoica, Florentina. "Synthesis and characterisation of the thermoresponsive copolymers and peptide-polymer conjugates based on poly(N-isopropylacrylamide)." Thesis, University of Manchester, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.492130.

Full text

Abstract:

Responsive polymers are of great interest in biomedical applications such as tissue engineering, drug delivery and cell adhesion mediators systems. Particularly thermoresponsive polymers have been found valuable due to their ability to induce a response with the change in temperature. The prototype thermoresponsive polymer, poly(N-isopropylacrylamide) (PNIPAAm), exhibits a reversible phase transition at body temperature. Several factors can influence the phase transition of PNIPAAm including chemical structure, morphology, chemical environment and synthesis conditions. The exact relationship b

APA, Harvard, Vancouver, ISO, and other styles

31

Baniya, Sangita, Shai R. Vardeny, Evan Lafalce, Nasser Peygambarian та Z. Valy Vardeny. "Amplitude-Mode Spectroscopy of Charge Excitations in PTB7 π-Conjugated Donor-Acceptor Copolymer for Photovoltaic Applications". AMER PHYSICAL SOC, 2017. http://hdl.handle.net/10150/625067.

Full text

Abstract:

We measure the spectra of resonant Raman scattering and doping-induced absorption of pristine films of the pi-conjugated donor-acceptor (D-A) copolymer, namely, thieno[3,4 b] thiophene-alt-benzodithiophene (PTB7), as well as photoinduced absorption spectrum in a blend of PTB7 with fullerene phenyl-C61-butyric acid methyl ester molecules used for organic photovoltaic (OPV) applications. We find that the D-A copolymer contains six strongly coupled vibrational modes having relatively strong Raman-scattering intensity, which are renormalized upon adding charge polarons onto the copolymer chains ei

APA, Harvard, Vancouver, ISO, and other styles

32

Tangbunsuk, Siree. "Solution self-assembly of metallopolymer-peptide conjugates and block copolymers with a crystallisable core-forming polylactide block." Thesis, University of Bristol, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.540871.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Jacobs, Jaco. "Poly(N-vinylpyrrolidone) - Poly(γ-benzyl-L-glutamate) conjugates". Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20369.

Full text

Abstract:

Thesis (MSc)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: The combination of natural and synthetic polymers allow for the synthesis of advanced hybrid copolymers. These hybrid copolymers have applications in biomedical areas, one such area being in drug delivery systems (DDS). In this study, a modular approach was used to prepare amphiphilic block copolymers with the ability to self-assemble into three dimensional structures. Reversible addition-fragmentation chain transfer (RAFT) was the synthetic tool used to mediate the polymerization of N-vinylpyrrolidone. RAFT is a versatile

APA, Harvard, Vancouver, ISO, and other styles

34

Khanduyeva, Natalya. "Conjugated Polymer Brushes (Poly(3-hexylthiophene) brushes): new electro- and photo-active molecular architectures." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:14-ds-1232556562686-70575.

Full text

Abstract:

The aim of the present work was to screen the main methods for the synthesis of conjugated polymers for their suitability in the preparation of conductive polymer brushes. The main focus was put on the grafting of intrinsically soluble substituted regioregular polyalkylthiophenes because of their excellent optoelectronic properties. The resulting polymer films were characterized and their optoelectrical properties studied. For the first time, a synthesis of conductive polymer brushes on solid substrates using “grafting-from” method was performed. The most important, from my opinion, finding of

APA, Harvard, Vancouver, ISO, and other styles

35

Khanduyeva, Natalya. "Conjugated Polymer Brushes (Poly(3-hexylthiophene) brushes): new electro- and photo-active molecular architectures." Doctoral thesis, Technische Universität Dresden, 2008. https://tud.qucosa.de/id/qucosa%3A23635.

Full text

Abstract:

The aim of the present work was to screen the main methods for the synthesis of conjugated polymers for their suitability in the preparation of conductive polymer brushes. The main focus was put on the grafting of intrinsically soluble substituted regioregular polyalkylthiophenes because of their excellent optoelectronic properties. The resulting polymer films were characterized and their optoelectrical properties studied. For the first time, a synthesis of conductive polymer brushes on solid substrates using “grafting-from” method was performed. The most important, from my opinion, finding of

APA, Harvard, Vancouver, ISO, and other styles

36

Ottone, Chiara. "Nouveaux copolymères donneur-accepteur : préparation, caractérisation physico-chimique et application des cellules photovoltaïques organiques." Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00864002.

Full text

Abstract:

Ce travail de thèse concerne l'élaboration de nouveaux copolymères à faible bande interdite de type " push-pull ", constitués par une unité donneuse d'électrons (push) et une unité acceptrice d'électrons (pull) en modulant les relations structures-propriétés par stratégie de synthèse. Des copolymères constitués par des unités acceptrices d'électrons (dérivées du benzothiadiazole ou du thienopyrrolodione) et donneuses d'électrons (3,6-carbazole, 2,7-carbazole, dialkoxybezodithiophène) ont été obtenus par différentes méthodes de couplage carbone carbone (C-C). Des études physico-chimiques par de

APA, Harvard, Vancouver, ISO, and other styles

37

Köhn, Serrano Melissa Suzanne [Verfasser], and Andreas [Akademischer Betreuer] Greiner. "Self-Assembly, Spatial-, and Size- Control of Gold Nanoparticle/Block Copolymer Conjugates / Melissa Suzanne Köhn Serrano. Betreuer: Andreas Greiner." Bayreuth : Universität Bayreuth, 2015. http://d-nb.info/1081718021/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Wallom, Kerri-Lee. "Synthesis and biological characterisation of HPMA copolymer-mannose conjugates designed for intracellular delivery of anti-leishmanial compounds to macrophages." Thesis, Cardiff University, 2008. http://orca.cf.ac.uk/54340/.

Full text

Abstract:

<italic>Visceral leishmaniasis</italic> is the second largest parasitic killer in the world (after malaria) with 59,000 deaths annually. The parasite resides in macrophages, within a compartment called the parasitophorous vacuole, but many anti-leishmanial drugs are toxic and poorly effective due to the low concentrations attained in this compartment. Therefore, the aim of this study was to establish the basis for design of N-(2-hydroxypropyl)methacrylamide (HPMA) copolymer-drug conjugates that would target the parasitophorous vacuole, with potential to deliver improved treatments for leishman

APA, Harvard, Vancouver, ISO, and other styles

39

Greco, Francesca. "Synthesis and biological evaluation of a novel HPMA copolymer conjugate-based combination therapy designed for the treatment of breast cancer." Thesis, Cardiff University, 2006. http://orca.cf.ac.uk/55598/.

Full text

Abstract:

Polymer-anticancer drug conjugates display passive tumour targeting by the enhanced permeability and retention effect. Several conjugates containing traditional chemotherapy (doxorubicin (Dox), paclitaxel and platinates) have entered clinical trials. N-(2-hydroxypropyl)methacrylamide (HPMA) copolymer-Dox (PK1) has shown activity in anthracycline-resistant breast cancer patients and was 5 times less toxic than Dox. The use of polymer conjugates to deliver endocrine agents is largely unexplored, therefore, the aim of this study was to design a novel HPMA copolymer conjugate carrying a combinatio

APA, Harvard, Vancouver, ISO, and other styles

40

Flanagan, P. A. "Evaluation of the pinocytic uptake and cellular processing of antibody-HPMA copolymer conjugates and estimation of their potential use in targeted drug delivery." Thesis, Keele University, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381394.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Habibi, Amirhossein. "Small Conjugated Push-Pull Molecular Donors for Organic Photovoltaics : characterization and Devices Optimization." Thesis, Angers, 2020. http://www.theses.fr/2020ANGE0008.

Full text

Abstract:

Les cellules solaires organiques sont en général constituées de deux types de semi-conducteurs organiques, un donneur et un accepteur d’électrons. Ce travail porte sur l’évaluation de matériaux donneurs d’électron dérivés de molécules pi-conjuguées push-pull combinés à des dérivés du fullerène comme matériau accepteur. Cette thèse décrit d’abord la fabrication et l’optimisation des cellules photovoltaïques (PV) réalisées à partir du DPMA-T-DCV. Cette petite molécule conjuguée push-pull facilement accessible, présente de bonnes propriétés de transport de trous à l’état solide et est constituée

APA, Harvard, Vancouver, ISO, and other styles

42

Adjili, Salim. "Synthèse et caractérisation de sondes lipidiques macromoléculaires fluorescentes émettant dans le rouge lointain pour l'imagerie membranaire." Phd thesis, INSA de Lyon, 2012. http://tel.archives-ouvertes.fr/tel-00876655.

Full text

Abstract:

Ce projet de thèse consistait à synthétiser de nouveaux bio-conjugués Lipide-Polymère fluorescents émettant dans le rouge lointain, composés d'une chaîne polymère portant à la fois de nombreux chromophores en position latérale et un lipide en extrémité de chaîne. La structure de ces bio-conjugués est basée sur des copolymères poly(N-acryloylmorpholine-co-N-acryloxysuccinimide), hydrophiles, réactifs, modulables et d'architecture contrôlée obtenus par le procédé RAFT. Les copolymères réactifs ont ensuite été utilisés pour le couplage, en position latérale, de chromophores émettant dans le rouge

APA, Harvard, Vancouver, ISO, and other styles

43

Cassegrain, Simon. "Les matériaux π-conjugués oligoélectrolytes : des matériaux clés pour de nouvelles applications". Thesis, Montpellier, Ecole nationale supérieure de chimie, 2019. http://www.theses.fr/2019ENCM0008.

Full text

Abstract:

Ce travail présente deux volets d’une nouvelle approche de l’élaboration de matériaux pi conjugués dont les propriétés et les applications sont très attractives. Le premier volet est dédié à une étude approfondie de systèmes pi-conjugués oligoélectrolytes. Ces cibles sont des segments conjugués moléculaires parfaitement définis portant des chaînes ioniques les solubilisant dans des milieux protiques. De nombreux composés ont été préparés et caractérisés. Les propriétés des oligoélectrolytes ont été mises en valeur dans deux domaines. En électronique organique, ces composés ont été évalués comm

APA, Harvard, Vancouver, ISO, and other styles

44

Calard, François. "Ingénierie moléculaire d'enchaînements pi-conjugués unidimensionnels pour l'électronique moléculaire." Thesis, Montpellier, Ecole nationale supérieure de chimie, 2014. http://www.theses.fr/2014ENCM0016/document.

Full text

Abstract:

L'objectif de ce travail est de construire des objets moléculaires unidimensionnels et assez longs pour devenir des jonctions moléculaires entre deux nanoélectrodes métalliques insérables dans des nanodispositifs dédiés à ces mesures électriques.Après une étude bibliographique, nous proposons la construction de fils moléculaires solubles à partir d'unités de répétitions adaptées, enchaînées de manière parfaitement définie et contrôlée pouvant atteindre des longueurs élevées, comprises entre 8 et 11,6 nm, pour les plus longs d'entre eux. Trois familles homogènes de fils, basés sur la répétition

APA, Harvard, Vancouver, ISO, and other styles

45

Awada, Hussein. "Elaboration des matériaux hybrides, organiques/ oxydes métalliques pour le photovoltaique organique." Thesis, Pau, 2014. http://www.theses.fr/2014PAUU3016/document.

Full text

Abstract:

The performance and life time of organic solar cells are critically dependent on the properties of active layer materials and device interfaces. In this manuscript, we developed new organic-inorganic hybrid materials to create intimate contact between donor and acceptor phases and facilitate the interfacial electronic charge transfer through the device. First, the synthesis of versatile triethoxysilane-terminated poly(3-hexylthiophene) P3HT for direct anchoring (grafting-onto) in one step procedure to various metallic oxides was reported. Electro-optical analysis showed an efficient charge tra

APA, Harvard, Vancouver, ISO, and other styles

46

Wang, Hengbin. "Supramolecular self-assembly of conjugated block copolymers /." 2003. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:3077080.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Marques, Ana Teresa Salvador dos Santos. "Ionic donor/acceptor conjugated copolymers for optoelectronic applications." Doctoral thesis, 2012. http://hdl.handle.net/10316/20167.

Full text

Abstract:

Tese de doutoramento em Química, na especialidade de Química Macromolecular, apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra<br>Conjugated polymers have attracted much attention, over the past decades, as promising electroactive materials with various applications, such as batteries, molecular electronic devices, light emitting diodes (LEDs), organic eld-e ect transistors (OFETs), large area photodetectors, organic photovoltaic cells and current injection lasers. Linear aromatic systems that consist of carbon bridged arylene units are of particular interest bec

APA, Harvard, Vancouver, ISO, and other styles

48

Kuo, Yu-Ming, and 郭于銘. "Phase Behavior and Optical Properties of Conjugated Block Copolymers." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/pstqc2.

Full text

Abstract:

碩士<br>國立東華大學<br>材料科學與工程學系<br>95<br>Phase behavior and optical properties of PS-PFO-PS and PS-PT8-PS block copolymers have been investigated by means of high-temperature UV-vis absorption spectroscopy, photoluminescence spectroscopy, polarized-optical microscopy and high temperature x-ray diffractometry. Results indicate that, similar to the PFO homopolymer, there exist the β phase in the as cast films of these block copolymers. Upon heating the 　phase transforms to crystalline phase and it melts into isotropic above melting point, no nematic phase found in these specimens. The corresponding UV

APA, Harvard, Vancouver, ISO, and other styles

49

KRAFT, THOMAS M. "DEVELOPMENT OF CONJUGATED COPOLYMERS FOR CARBON NANOTUBE-BASED SOLAR CELLS." Thesis, 2011. http://hdl.handle.net/1974/6315.

Full text

Abstract:

The investigation carried out in this project allowed for the development of eleven regioregular π-conjugated alternating copolymers and their implementation in organic solar cells. The eleven synthesized polymers, poly[(2,7-(9-(heptadecan-9-yl)-9H-carbazole))-alt-(4,7-dithien-2-yl-2,1,3-benzothiadiazole)] (CB), poly[(2,7-(9,9-dioctyl-9H-fluorene-2,7-diyl))-alt-(1,6-pyrene)] (LP), poly[(2,7-(9-(heptadecan-9-yl)-9H-carbazole))-alt-(5,5’’’-(3,3’’’-dihexyl-2,2':5',2'':5'',2'''-quarterthiophene))] (CT), poly[(2,7-(9-(heptadecan-9-yl)-9H-carbazole))-alt-(2,7-9H-fluoren-9-one)] (CF), poly[(2,7-(9-(

APA, Harvard, Vancouver, ISO, and other styles

50

Ono, Robert Jun. "Synthesis of conjugated polymers and block copolymers via catalyst transfer polycondensation." 2013. http://hdl.handle.net/2152/21352.

Full text

Abstract:

Conjugated polymers hold tremendous potential as low-cost, solution processable materials for electronic applications such organic light-emitting diodes and photovoltaics. While the concerted efforts of many research groups have improved the performance of organic electronic devices to near-relevant levels for commercial exploitation over the last decade, the overall performance of organic light-emitting diode and organic photovoltaic devices still lags behind that of their traditional, inorganic counterparts. Realizing the full potential of organic electronics will require a comprehensive, mo

APA, Harvard, Vancouver, ISO, and other styles

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!