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Dissertations / Theses on the topic 'Conducting polymers. Polymers Polymers in medicine'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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1

Yang, Yanyin. "Synthesis, characterization, microfabrication and biological applications of conducting polymers." Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1127316668.

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Thesis (Ph. D.)--Ohio State University, 2005.<br>Title from first page of PDF file. Document formatted into pages; contains xv, 192 p.; also includes graphics (some col.). Includes bibliographical references (p. 183-192). Available online via OhioLINK's ETD Center

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2

Asplund, Maria. "Conjugated Polymers for Neural Interfaces : Prospects, possibilities and future challenges." Doctoral thesis, Stockholm : Teknik och hälsa, Technology and Health, Kungliga Tekniska högskolan, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-9817.

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3

Sabagh, Basseem. "Intrinsically conducting polymers." Thesis, Kingston University, 2007. http://eprints.kingston.ac.uk/20425/.

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The synthesis, properties optimisation and blending of two intrinsically conducting polymer families have been investigated. Electron rich polymers, based on polythiophene derivatives, and electron deficient polymers, based on polypyridine derivatives, were successfully synthesised and characterised. Poly (3,4-ethylenedioxythiophene) [PEDOT] was synthesised by controlled oxidative polymerisation. Hexyl-substituted EDOT, which is commercially unavailable, was successfully synthesised via an eight step reaction. Poly (3-nitropyridine) [PPy-3-NO[sub]2] was produced following a revised literature

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4

Ladbury, John Edward Simon Durham. "Thermally conducting polymers." Thesis, University of Greenwich, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236267.

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5

Huang, Fang. "Synthesis of conducting polymers /." Internet access available to MUN users only, 2003. http://collections.mun.ca/u?/theses,155148.

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6

Almasri, Moayad. "Liquid crystalline conducting polymers." Thesis, Kingston University, 2008. http://eprints.kingston.ac.uk/20393/.

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Side chain liquid crystal polypyrroles have been synthesised and investigated in order to study their liquid crystallinity and its possible effect on their electronic conductivity. The synthesis ofN-substituted dithienylpyrrole was studied using a number of methods. Firstly, there was the synthesis of a side chain which consisted of a mesogenic group and nine units of methylene as a spacer. This synthesis was followed by the preparation of the N-substituted monomer, its polymerisation and the characterisation of both the low molecular weight compounds and the polymer. The next stage was the hy

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7

Mohammad, F. "Studies on conducting polymers." Thesis, University of Sussex, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382499.

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This thesis reports studies of several aspects of the behaviour of intrinsically conducting organic polymers with conjugated backbones. Polyparaphenylene has been synthesised by a range of chemical methods and the products studied by spectroscopy, x-ray diffraction and electrical properties. It is shown that the properties of the polymer are sensitive to the method of synthesis. The intrinsic and oxidative degradation of compensated and p-type doped poly thiophene and polypyrrole have been studied by uv-vis, ftir, tga and by monitoring electrical conductivity. Dissimilar degradation behaviours

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8

Read, Daniel Charles. "Novel transparent conducting polymers." Thesis, University of Newcastle Upon Tyne, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357118.

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9

Eastwick-Field, Vanessa Mary. "Reduced state conducting polymers." Thesis, University of Warwick, 1991. http://wrap.warwick.ac.uk/108298/.

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The work presented in this thesis is concerned with reduced state conducting polymers, and in particular with poly(pyridine). The electroreductive polymerisation of 2,5-dibromopyridine based on either the Ni(0)(PPh3)4] or [Ni(0)(bpy)3ClO4)2] systems was investigated. The results obtained via both routes are discussed in terms of their respective mechanisms. The initial steps of the polymerisation based on the latter system are analysed using a specially developed kinetic theory. Although the theory was designed specifically to better understand the mechanism of electrosynthesis of poly(pyridin

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10

Li, Guangchun. "Ion transport in conducting polymers." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0035/MQ47460.pdf.

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11

Hall, Carl. "Functional dopants in conducting polymers." Thesis, Coventry University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305230.

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12

Armes, S. P. "Colloidal forms of conducting polymers." Thesis, University of Bristol, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.483279.

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13

Hu, Gang. "Conducting polymers from heterocyclic compounds." Thesis, Open University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240331.

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14

Parsons, Keith Paul. "Conducting polymers for modified electrodes." Thesis, Imperial College London, 1986. http://hdl.handle.net/10044/1/38134.

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15

Zuo, Fulin. "Transport studies of conducting polymers /." The Ohio State University, 1988. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487598303839229.

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16

Bubnova, Olga. "Thermoelectric properties of conducting polymers." Doctoral thesis, Linköpings universitet, Fysik och elektroteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-87476.

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According to different sources, from forty to sixty percent of the overall energy generated in the world today is squandered in waste heat. The existing energy conversion technologies are either close to their efficiency limits or too costly to justify their implementation. Therefore, the development of new technological approaches for waste heat recovery is highly demanded. The field of thermoelectrics can potentially provide an inexpensive, clean and efficient solution to waste heat underutilization, given that a new type of thermoelectric materials capable of meeting those requirements are

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17

Schlindwein, Walkiria Santos. "Conducting polymers and polymer electrolytes." Thesis, University of Leicester, 1990. http://hdl.handle.net/2381/33889.

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Polymers are mostly used as insulator materials. Since the late sixties, two new classes of polymeric materials possessing either ionic or electronic conductivities have been extensively studied. The work carried out in this thesis concerns of the study of polymer electrolytes based on poly(ethylene oxide) (PEO) complexed with divalent salts (ionic conductors) and polypyrroles (PPy) electrochemically and chemically prepared (electronic conductors). Different techniques were used to study their properties including Differential Scanning Calorimetry (DSC), Variable Temperature Polarising Microsc

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18

Wu, Jen-Chieh. "Studies of Electrically Conducting Polymers and Biodegradable Polymers for Bone Tissue Engineering." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1261512507.

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19

Deng, Fenghua. "Coating of electrically conducting polymeric films on the surface of non-conducting substrate." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/30435.

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20

KUO, THAU-MING. "SYNTHESIS AND CHARACTERIZATION OF MONOMERS AND POLYMERS CONTAINING MULTIPLE P-ARYLENEAZO OR P-BENZOQUINODIIMINE GROUPS: CONDUCTING POLYMERS, LIQUID CRYSTAL POLYMERS, AND DIPOLAR POLYMERS." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184215.

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Aniline Black, a polymer containing p-benzoquinodiimine groups, was synthesized chemically or electrochemically by the oxidation of aniline. The polymer salts showed the conductivity of 10⁻¹-10⁻³ ohm⁻¹cm⁻¹. Polymers containing anthroquinodiimine units were also prepared by polycondensations. The syntheses of model compounds containing p-benzoquinodiimine were attempted. Multiazobisphenol monomers were synthesized. 4,4'-(3,3'-Dimethyl-4,4'-biphenylenebisazo) bisphenol 7, 4,4'-[azobis(p-phenyleneazo)] bisphenol 8, and 4,4'-(2-methoxy-1,4-phenylenebisazo) bisphenol 10 displayed liquid crystal (l.

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21

Kurosawa, Shutaro. "Supercritical Processing of Electrically Conducting Polymers." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/4988.

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Thick composites (~ 3 mm in thickness) of polypyrrole with electrically insulating porous (polystyrene) and nonporous (polymethyl methacrylate) substrates were prepared using a two-step batch method. In the two-step method, impregnation of volatile (iodine) or nonvolatile (ferric chloride) oxidant in the substrate is followed by in-situ polymerization of pyrrole. Conductivities as high as 10-1 S/cm were obtained in this work in the case of composites of polypyrrole and porous, crosslinked polystyre. Use of the nonvolatile oxidant (ferric chloride) resulted in higher conducting polymer yield, a

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22

Dias, Bruno José da Cruz Teixeira. "Application of conducting polymers in nanobiotechnology." Doctoral thesis, Universitat Politècnica de Catalunya, 2011. http://hdl.handle.net/10803/131948.

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Esta tesis describe diferentes aplicaciones en el ámbito de la nanobiotecnología de los polímeros conductores generados electroquímicamente. El objetivo principal de la Tesis, que además es el nexo común de los diferentes estudios que se presentan en los Capítulos 4 al 6, es el análisis de las interacciones entre los polímeros conductores sintéticos y diversas entidades biológicas (ADN, proteínas, polisacáridos, pequeños péptidos, drogas, y células). Uno de los retos más importantes de esta Tesis ha sido la caracterización de las interacciones entre los polímeros conductores y el ADN. Los est

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23

Neuendorf, Annette J., and n/a. "High Pressure Synthesis of Conducting Polymers." Griffith University. School of Science, 2004. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20040218.112214.

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An experimental investigation of the high pressure synthesis of water soluble, self doping conducting polymers is presented. 2- And 3-aminobenzenesulfonic acid and the respective sodium sulfonates have been polymerised. Optimal polymerisation conditions have been determined with respect to yield, conductivity and molecular weight. Reaction parameters such as oxidant, pressure, catalysts, reaction time and temperature and the use of additives were investigated. The minimum pressure required for polymerisation was 7 kbar. An increase in pressure had a negligible effect on polymer characteristic

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24

Reece, David Andrew. "Development of conducting polymers for separations." Access electronically, 2003. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20040813.163155/index.html.

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25

Ponsonby, Anna M. "Synthesis of crosslinked electrically conducting polymers." Thesis, Lancaster University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387471.

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26

Ryley, Stephen. "Competitive doping in heterocyclic conducting polymers." Thesis, Coventry University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362077.

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27

Haynes, D. M. "Electronic properties of novel conducting polymers." Thesis, Swansea University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.637251.

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For some years a dynamic international research effort has focused on developing novel molecular materials which have interesting conducting and semiconducting properties. This thesis is concerned with the investigation of several novel organic polymers which fall into this category. The first part of the work concerns the DC characterisation of three conjugated polymers: poly[2,5-dibutoxy-1-(1'2'-ethynyl)-4-benzene] (A) poly[2,5-dibutoxy-1-(1'4'-buta-1',3'-diynyl)-4-benzene] (B) and poly-p-phenylene-vinylene (C). In their intrinsic state all these materials are quantitatively similar with ban

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28

梁世東 and Shidong Liang. "Ground state properties of conducting polymers." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31238968.

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29

Jafarzadeh, Shadi. "Functional composite coatings containing conducting polymers." Doctoral thesis, KTH, Yt- och korrosionsvetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-155132.

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Organic coatings are widely used to lower the corrosion rate of metallic structures. However, penetration of water, oxygen and corrosive ions through pores present in the coating results in corrosion initiation and propagation once these species reach the metal substrate. Considering the need for systems that offer active protection with self-healing functionality, composite coatings containing polyaniline (PANI) conducting polymer are proposed in this study. In the first phase of my work, PANI was synthesized by various methods and characterized. The rapid mixing synthesis method was chosen f

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30

Chen, Yu. "Towards anisotropy in ordered conducting polymers." Thesis, University of Aberdeen, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312356.

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A new β and <I>N</I>-substituted pyrrole, <I>N</I>-trimethylsilylethoxymethyl-3-methyl-4-pyrrole carboxylate ethyl ester (MPCE-SEM) is synthesised and copolymerised electrochemically with unsubstituted pyrrole to gives free-standing films for conductivity measurements. The electrochemical polymerisation of MPCE-SEM gives only soluble dimers and oligomers rather than polymers because the steric constraints stabilise the oligomeric cation radical of MPCE-SEM. The thiophene monomers containing mesogenic group at the 3-position via an alkyl chain are synthesised and polymerised chemically to give

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31

Liang, Shidong. "Ground state properties of conducting polymers /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B20667772.

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32

O'Malley, Hubert A. "The electrochromic properties of conducting polymers." Thesis, Kingston University, 2007. http://eprints.kingston.ac.uk/20422/.

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Over the past number of years, polymers with delocalised [pi]-orbitals have been of interest due to their electrical conducting properties. Exposing these polymers to electron donating or accepting dopants, remarkably alters the nature of these materials. In this project it was planned to synthesise and investigate the physical and chemical and electrochemical properties the "polyquinoxaline" family of materials. In order to investigate these materials, synthesis of 5,14-dihydro-5,7,12,14-tetraazapentacene(L5H[sub]2),7,16-dihydro-5,7,9,14,16,18-hexaazaheptacene (L7H[sub]2),7,20-dihydro-5,7,9,1

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33

Svensson, Mikael. "Conducting redox polymers for battery applications." Thesis, Uppsala universitet, Strukturkemi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-415137.

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The near future will put a lot of demand on the increasing need for energy production and storage. Issues regarding the modern-day battery technology’s environmental benignity, safety and cost to sustain such demands thus serve as a huge bottleneck, necessitating the research into alternative electrochemical energy storage solutions. Conducting redox polymers are a class of materials which combines the concepts of conducting polymers and redox active molecules to work as fully organic electrode materials. In this work three conducting redox polymers based on 3,4-ethylenedioxythiopene and 3,4-p

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34

Liu, Shaohua, Jian Zhang, Renhao Dong, et al. "Two-Dimensional Mesoscale-Ordered Conducting Polymers." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-235473.

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Despite the availability of numerous two-dimensional (2D) materials with structural ordering at the atomic or molecular level, direct construction of mesoscale-ordered superstructures within a 2D monolayer remains an enormous challenge. Here, we report the synergic manipulation of two types of assemblies in different dimensions to achieve 2D conducting polymer nanosheets with structural ordering at the mesoscale. The supramolecular assemblies of amphipathic perfluorinated carboxylic acids and block co-polymers serve as 2D interfaces and meso-inducing moieties, respectively, which guide the pol

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35

Ou, Runqing. "Anisotropic structure and electrical properties of intrinsically conducting polymers." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/9257.

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36

Chu, Der-Lun. "Synthesis and characterization of electrically conducting organic polymers." Diss., Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/27893.

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37

Inaoka, Seiji. "A study of electronically conductive polymers : substituted dithieno[3,4-B:3',4'-d]thiophenes and substrate modification with monomer adsorbates." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/27338.

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38

Oztemiz, Serhan. "Synthesis and Characterization of Soluble Conducting Polymers and Conducting Adhesives." University of Cincinnati / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1227106326.

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39

Martí, Barroso Mireia. "Formulation of anticorrosive paints employing conducting polymers." Doctoral thesis, Universitat Politècnica de Catalunya, 2013. http://hdl.handle.net/10803/129450.

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The intention and purpose of the present thesis is to prepare a series of protective coatings using some conducting polymers (CPs) as corrosion inhibitors. The use of organic paints is the most common method for corrosion prevention. Anticorrosive coatings form a class of high-performance systems with a very wide range of applications and being classified in two broad groups: heavy-duty coatings, for high performance, and light-duty coatings, for medium performance. The first class being required for highly aggressive medium, like oil platforms, bridges, chemical industry plants, containers, s

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40

Hughes, M. "Composites of carbon nanotubes and conducting polymers." Thesis, University of Cambridge, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.604735.

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Carbon nanotubes and conducting polymers are both interesting for their unique electrochemical properties that make them well suited to use in electrochemical capacitors (sources of high power pulses of electrical energy) and actuators (artificial muscles). In the case of carbon nanotube films, it is their high surface area and electrical conductivity that makes them attractive, particularly in terms of their fast response times. In contrast, the redox chemistry of conducting polymers enables them to achieve large charge storage capacities and dimensional changes in response to potential cycli

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41

Dawson, Darryl Hirst. "The electrochemistry of chemically modified conducting polymers." Thesis, University of Warwick, 1992. http://wrap.warwick.ac.uk/4486/.

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The work described in this thesis concentrates on chemically modified heterocyclic conducting polymers based upon pyrrole, thiophene and indole monomers with -particular emphasis placed upon carboxylic acid substituents. A brief description of the electrochemistry of chemically modified poly(pyrroles) is given with an explanation of the problems associated with the chemical modifications. A reasonable understanding of the properties of chemically modified poly(thiophenes) has been achieved. In particular the properties of poly(3-thiopheneacetic acid) have been characterised in both aqueous and

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42

Mawson, Simon David. "Syntheses of potentially conducting polymers containing fluorine." Thesis, Durham University, 1989. http://etheses.dur.ac.uk/6316/.

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The preparation and characterisation of a number of fluorinated monomers capable of electrochemical polymerisation is described. Their electrochemical characteristics and the products of polymerisation are discussed 4,5,6,7-Tetrafluoroisothianaphthene was synthesised and its chemistry investigated. Attempts to electrochemically polymerise this to give a potentially narrow band-gap conducting polymer were generally unsuccessful. Other analogous monomers were also found to be difficult to polymerise by this method. New fluorinated polyphenylylenevinylene oligomers and polymers have been prepared

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43

Danielsen, P. L. "The photogeneration of defects in conducting polymers." Thesis, University of Cambridge, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384448.

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44

Troensegaard, Nielsen Kim. "Light harvesting by dye linked conducting polymers /." Risø National Laboratory, 2006. http://www.risoe.dk/rispubl/POL/polpdf/ris-phd-26.pdf.

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45

Budd, Darren. "Transition metal complexation of hetrocyclic conducting polymers." Thesis, Kingston University, 1995. http://eprints.kingston.ac.uk/20582/.

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Poly(3-alkylthiophene)s are amongst the most technologically promising organic conducting polymers owing to their high stability in both the doped and undoped states. The possibility of complex formation between these polymers and transition metal ions (Fe3+, Cu2+, Ag", Ni2+ and Au3+) was investigated in the solid state and in aprotic solvents. In this thesis the background literature relating to these polymers is reviewed, and the aims of the work described. The practical work is then reported, initially the preparation and characterisation of pure poly(3-alkylthiophene)s, and an attempt to p

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46

Cromack, Keith Richard. "Photo-induced magnetic defects in conducting polymers." The Ohio State University, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=osu1343059111.

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47

Venugopal, Vinithra. "Kinetics of Ion Transport in Conducting Polymers." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1458229667.

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48

Robertson, Mark Thomas. "Electrochemical characterisation of indole based conducting polymers." Thesis, University of Edinburgh, 1998. http://hdl.handle.net/1842/14312.

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Conducting polymers based on heterocyclic organic systems have found a wide and varied number of applications from fast pH sensors to stealth coatings and drug delivery systems. What is surprising, however, is that very little is known about the actual mechanism by which electrical conduction through these systems occurs. Ac impedance spectroscopy was used along with cyclic voltammetry and rotating disc electrode techniques, to electrochemically characterise polymers formed from indole-5-carboxylic acid (15CA). Physical parameters were obtained from the ac spectra by mathematically modelling t

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49

Jones, Geraint Wyn. "Organic polymers and solid state fabrication." Thesis, Bangor University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311458.

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50

Collie, Luke E. "Lithium transport in crown ether polymers." Thesis, Durham University, 1995. http://etheses.dur.ac.uk/5196/.

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A series of 12-, 13-, and 14-membered crown ether rings bearing polymerisable side-chains has been synthesised. The crown ethers were attached to a methacrylate or acrylate polymerisable group either via a short link (Ring-CH(_2)-O-Polymer) or via a spacer group. Both hydrocarbon and ethylene oxide spacer groups were used, giving structures of the form (Ring-CH(_2)-O-(CH(_2))(_6)-O-Polymer) and (Ring-CH(_2)-O-((CH(_2)CH(_2))(_2)O)-Polymer). The ethylene oxide chain can potentially bind to a Li(^+) dopant ion. The relative Li(+) binding affinity of 12-, 13-, and 14-membered mono- and disubstitu

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