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 20 of 45 for “"Polymer thin films"”.
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Enabling integration of vapor-deposited polymer thin films
… for synthesizing conformal and functional polymer thin films on a variety of substrates. This thesis emphasizes the development of tools to further enable the use of iCVD for industrial applications. The ability to pattern polymer thin films is a prerequisite for device fabrication. Two …
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Structured polymer thin films: self-assembly and forced-assembly
Polymers have become indispensable because they can be chemically and physically tailored to meet diverse application needs, and are easily shaped into various forms like thin films. Polymer films naturally introduce film thickness and adjoining interfaces as factors that can be manipulated to …
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Nanoparticle assembly in polymer thin films and polymer melts
Thesis (Ph. D.)--Michigan State University. Materials Science and Engineering, 2010
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Chemical vapor deposition of organosilicon and sacrificial polymer thin films
Chemical vapor deposition (CVD) produced films for a wide array of applications from a variety of organosilicon and organic precursors. The structure and properties of thin films were controlled by varying processing conditions such as the method and power of precursor activation, pressure, flow …
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Hemocompatible polymer thin films fabricated by Electrostatic Self-Assembly (ESA)
… using drugs, electrostatic self assembled (ESAd) thin films may be the potential candidates to prevent restenosis. ESA is a process to fabricate thin films bases on the electrostatic attraction between two oppositely charges. We used this technique to fabricate four PVP films and four PEI films. …
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Renewable Natural Polymer Thin Films and Their Interactions with Biomacromolecules
Natural polymers from renewable resources have attracted increasing interest as candidates for renewable energy and functional materials. In this work, the interactions between natural polymer thin films and biomacromolecules were studied via surface analysis techniques, such as a quartz crystal …
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Infululence of Polymer Nanoparticles on the Dewetting of Polymer Thin Films
… dewetting of spun-cast linear polystyrene (PS) films on Si/SiOx surfaces is investigated as a function of temperature, concentration and type of the nanoparticles. The star polymers have polystyrene-benzocyclobutene copolymer arms which can undergo intra-molecular crosslinking to form relatively …
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Chemistry directed assembly of multilayered polymer thin films and colloidal particles
In this thesis, multilayered polymer thin films have been directed to different regions of a surface based on both electrostatic and secondary interactions between the polymer and the surface. This concept of adsorption directed by surface chemistry is universal, in that the same sets of rules …
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Quartz Crystal Microbalance with Dissipation Monitoring Applications in Polymer Thin Films Analysis
Natural and synthetic polymers are highly related to people's daily life in every perspective and determine everyone's life quality. This study investigated the interactions between polymer thin films and other molecules, specifically natural polymer films with other components in plant and fungal …
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Analysis Methods and Characterization of the Electrical Properties of Nanostructured Particle-Containing Polymer Thin Films
<p>Polymeric thin film materials exhibit extreme electrical properties that can be difficult to measure in a repeatable fashion. The primary goal of this research was to establish a reliable method for categorizing the electrical properties of elastomeric thin film polymeric materials, including …
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Chemical vapor deposition of functional and conformal polymer thin films for the formation and modification of nanostructures
… geometries can enable high device performance within a small areal footprint. Fabrication of such devices requires processes to form structures in a material of interest and subsequently modify the structure with additional functional materials. This thesis explores the chemical vapor deposition …
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Synthesis of reactive and stimuli-responsive polymer thin films by initiated chemical vapor deposition and their sensor applications
Stimuli-responsive polymer thin films provide the ability to control the interaction of a surface with its environment. Synthetic techniques with fine compositional control are required to engineer specific responses to stimuli. Initiated chemical vapor deposition (iCVD) is a novel vacuum …
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Zeolites and Polymer Thin Films as Media for Structuring Light-Induced Electron Transfer Reactions (Rhodamine B, Forster, Energy Migration)
Zeolites are characterized as structural templates for light-induced electron transfer reactions. The main emphasis is on factors affecting loading of Ruthenium tris(bipyridine) (Ru(bpy)(,3)('+2)) into the lattice and explaining luminescent decay data in terms of the molecular environment.
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Environmentally focused patterning and processing of polymer thin films by initiated chemical vapor deposition (iCVD) and oxidative chemical vapor deposition (oCVD)
… one step, solvent-free process for producing polymeric thin films This thesis describes the deposition of a novel low-k iCVD precursor, 1,3,5,7-tetravinyltetramethylcylcotetrasiloxane (V4D4). The high degree of organic content in the as-deposited film affords the ability to tune the film's …
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Thin Films of Semiconducting Polymers and Block Copolymers by Surface-initiated Polymerization
… molecular organization in organic semiconducting polymer thin films is an important prerequisite for enhancing the efficiency of organic thin-film devices, including organic light-emitting and photovoltaic devices. The current “top-down” paradigm for making such devices is based on utilizing …
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Nanomechanical Properties of Polymer-Grafted Nanoparticle Ultrathin Films
Polymer thin films have recently become one of the most emerging research areas due to their profuse applications in energy storage, flexible electronics, and photonics. The mechanical response of polymer thin films is crucial in defining a high-performance device encompassing the film’s …
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Self-assembled thin polymer film used for sensing application
Polymer thin films have played an important role in our everyday lives ranging from industrial to biomedical applications. In this thesis, two major topics based on polymer thin films including photopolymerized self-assembled monolayer and nanoporous thin films derived from diblock copolymer are …
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Novel Methods for the Control and Detection of Protein Interactions on Surfaces
… This work describes the use of self assembled polymer thin films consisting of functionalized polyacrylamide to inhibit the non-specific adsorption of dilute protein solutions. These polymer thin films are grafted with functional ligands through succinimide ester moieties copolymerized on the …
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Surface Relief Grating on Thin Film Containing Azobenzene-Polymer Material Linked by Hydrogen-Bonding
Thin films of azobenzene-polymer material show unique photo-responsive behavior under irradiation with two interfering laser beams. That leads to generate surface inscription pattering known as Surface Relief Grating (SRG). Moreover, two different types of polymers were used in this research, and …
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Surface-enhanced Raman and surface plasmon resonance measurements of Case II diffusion events on the nanometer length scale
… investigated with the aid of SERS-active planar films implanted in $\mu$m-scale polymer films. The use of Au rather than Ag metal-island films is shown to eliminate spectral interference resulting from photolytic degradation reported in typical SERS studies of glassy polymers. A sample probe …
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