Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"electropolymerization"”.
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Investigation of electroactive ultrathin films by surface plasmon spectroscopy
… electroactive polymer films. Firstly, the electropolymerization of 2, 2a??-bithiophene was investigated by electrochemical surface plasmon spectroscopy. The anion doping and dedoping were monitored during the electropolymerization. A shift of the minimum angle was observed, which means a …
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Fundamental studies towards the fabrication of electroactive monolithic stationary phases in microfluidic channels
… the order of what was needed for EMμ; therefore electropolymerization of aniline through a polystyrene colloidal crystal template strategy was chosen. Two alternative chip designs, CD1 and CD2, were investigated for this thesis. Their applicability for EMμ was assessed in terms of their flow …
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Investigations of highly conjugated macrocycles and polymers for aggregation and chemical sensing
… to Ni(II), Cu(II) and vanadyl, and tested for electropolymerization. Conjugated dithienylsalphen monomers polymerize poorly, while non-conjugated dithienylsalphen monomers form good films through electropolymerization. Ultraviolet-visible spectroscopy confirmed extended conjugation in N,N …
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Thiophene Derivative Monomers Co-electropolymerized on Microelectrodes within Arrays for Tailored Surface Chemistry and Electrochemical Properties
<p>Potentiodynamic co-electropolymerization of two thiophene derivatives, (2,3-dihydrothieno[3,4-b]dioxin-2-yl)methanol (1) and 4-((2,3-dihydrothieno[3,4-b][1,4]dioxin-2-yl)-methoxy)-4-oxobutanoic acid (2), in aqueous solutions (0.02 M total monomer, 0.05 M sodium dodecyl sulfate (SDS) and 0.1 M …
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Electrochemical Remedy and Analysis for the Environment Based on the New Polymer-DNA Composite Material.
… monomers in the presence of chromosomal DNA by electropolymerization. Environmental significant pollutants such as Cd, Pb, Hg, Co, Zn, Cu, and Bi metal ions can be extracted from the aqueous solution and are able to be transferred to another medium defined as the release solution where the …
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Conjugated polymer based materials via the incorporation of polymerizable units
… were subsequently cross-linked by anodic electropolymerization of phenylene-heterocycle moieties, affording conducting polymers. All of these three block copolymers were readily deposited on the electrode substrates, and their cyclic voltammograms revealed an excellent reversibility in the …
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Role of polythiophene- based interlayers from electrochemical processes on organic light-emitting diodes
… (OLED). The polymer films are obtained by the electropolymerization or the electrochemical doping/dedoping of a spin-coated layer. Their electrical properties and energetics are tailored by electrochemical adjustment of their doping levels in order to improve the hole-injection from the anode …
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DEVELOPMENT AND INVESTIGATION OF THE PROPERTIES OF AN ELECTROCHEMICALLY REGENERABLE CHEMICALLY MODIFIED ELECTRODE FOR CHEMELUMINESCENCE DETECTION OF ANALYTES IN SOLUTION
… a similar sensor was fabricated from the electropolymerization of a novel ruthenium complex, ruthenium tris(4-methyl-4'-(£-prop-2-enyl>2,2'-bipyridine) bis(hexafluorophosphate). This was also shown to be capable of chemiluminescence emission and was successfully regenerated Two …
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Synthesis and Characterization of Functional Mesostructures Using Colloidal Crystal Templating
… opal conducting polymer films were fabricated by electropolymerization. The templated films exhibited a compact morphology and larger electrochemical response from cyclic voltammetry. They also displayed shifts in Bragg diffraction, possibly due to changes in interchain spacing and refractive …
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Improving Photocatalytic Hydrogen Production of Ru,Rh,Ru Supramolecular Complexes in Aerobic Aqueous Solutions
… solvents. The synthesis, characterization, and electropolymerization of a chromophore-catalyst assembly having vinyl-substituted terminal ligands to create robust water reduction photocatalysts on wide-bandgap semiconductors is reported. The polymeric photocatalysts are expected to show …
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Synthesis, physical properties and processing of multifunctional molecular materials
… potentiostatic and (PEDOT), potentiodynamic electropolymerization, PEDOT films doped with magnetic polyoxometalate (POM) [Co4(H2O)2(PW9O34)2]10- have been obtained; the film obtained by using the potentiodynamic method is more stable than the analogous material obtained by applying a constant …
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Conducting polymers for electrochemically mediated separations
… PPy(AOT) can be synthesized using a facile electropolymerization protocol, and has an adsorption capacity of greater than 570 mg pollutant/g polymer in its superhydrophobic oxidized state. The hydrophobicity of PPy(AOT) and hence its affinity for organics can be modulated electrochemically …
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Microcapsule-based techniques for improving the safety of lithium-ion batteries
… the microcapsules are mechanically crushed and electropolymerization of the released core to form poly(3-ht) occurs under cyclic voltammetry. In addition, TCP was encapsulated using in situ polymerization. TCP-containing microcapsules are stable in electrolyte at room temperature, but are …
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Fabrication and Characterization of Tunable Conducting Polymer Micro- and Nano-Structures for Bioelectronics
The three novel investigations comprising this dissertation focus tightly on detailing the relationship between conditions of electrochemical deposition and the properties of the resulting CP films or microstructures. The first project elucidated the quantitative relationships between …
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Einfluss ausgewählter Syntheseparameter auf die elektrochemischen und mechanischen Eigenschaften von Polypyrrol
Polypyrrol (PPy) ist ein typischer Vertreter der intrinsisch leitfähigen Polymere und wird auf zahlreichen Gebieten, wie Analytik, Korrosionsschutz oder Elektrotechnik angewendet. Dabei nutzt man die elektronische Schaltbarkeit, die Stabilität und die gute Oxidierbarkeit sowie die Wasserlöslichkeit …