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 14 of 14 for “"Polymer applications"”.
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Epoxy-clay nanocomposite for carbon fiber reinforced polymer applications
Carbon fiber reinforced polymer (CFRP) composites have been utilized in rehabilitation and strengthening of civil infrastructure, and fabrication of aerospace, automotive and marine structural components. This is attributed to the high strength-to-weight ratio and durability of CFRP. However, for …
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Determination of Wear in Polymers Using Multiple Scratch Test.
… an important phenomenon that occurs in all the polymer applications in one form or the other. However, important links between materials properties and wear remain illusive. Thus optimization of material properties requires proper understanding of polymer properties. Studies to date have …
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Design and synthesis of plant oil-based UV-curable acrylates for sustainable coating applications
A demand in sustainable polymers has been increased because of the environment concerns and saving finite petroleum resources. Plant oils are promising renewable resources to produce environmentally friendly polymer applications. Soybean oil-based resins such as epoxidized soybean oil (ESO) and …
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Synthesis of α, β-Substituted Alkenylphosphonates from α-Phosphonovinyl Triflates: I) Palladium Catalyzed Suzuki-Miyaura Cross-coupling with Aryl Boronic Acids II) Palladium Catalyzed Reduction
… Vinylphosphonates are used in synthesis, polymer applications, and have demonstrated potential as anticancer and antimicrobial agents.</p> <p>Vinyl triflates are useful in organic synthesis and are referred to as pseudo-halides because they react in a manner similar to halides. Vinyl …
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Development of novel polymeric architectures for applications in drug delivery and studies towards the synthesis of perfect polymers by iterative exponential growth "Plus" (IEG+)
Polymeric materials are ubiquitous in numerous facets of everyday life, and their applications will only become increasingly prevalent as the field of polymer science advances. The first chapter of this thesis describes the use of polymeric nanoparticles to overcome challenges in traditional drug …
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Characterization of Spin Coated Polymers in Nano-environments as a Function of Film Thickness
Polymer applications have become more demanding as industry continuously turns to more microscopic parts. Due to the interactions of the polymer chains with the supporting surface and the air interface, the thinner films required for such applications have distinctly different properties than those …
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Morphological effects on gas transport through poly(methylmethacrylate)-poly(dimethlysiloxane) graft copolymers and instrumentation for their synthesis and permeability characterization
… well-defined or "model" block and graft copolymers have received increasing interest among academic and industrial communities. The well-defined nature of such polymers makes them ideal subjects for both fundamental studies and specialty polymer applications. This study addresses the …
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Microbial synthesis of 3,4-dihydroxybutyric acid, 3-hydroxybutyrolactone and other 3-hydroxyalkanoic acids
… products. 3-hydroxyalkanoic acids (3HAs) find applications as monomers for biodegradable polymers and chiral pharmaceutical building blocks. One part of this thesis focused on investigating the proposed 3-hydroxyalkanoic acid synthesis platform pathway. The platform employs the reactions of the …
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Regioselective Synthesis of Glycosaminoglycan Analogs
… Cellulose is an abundant and renewable natural polymer. Applications of cellulose and cellulose derivatives have drawn increasing attention in recent decades. Chemical modification is an efficient method to append new functionalities to the cellulose backbones. This dissertation describes …
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Development of formation damage models for oilfield polymers.
Polymers are among the most important of various oilfield chemicals and are used for a variety of applications in the oil and gas industry (OGI), including: water and gas shutoff; drilling mud viscosity modification; filtration loss control (FLC); swellable packers; loss circulation material (LCM) …
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Performance of Concrete Bridge Deck Surface Treatments
… with regard to surface treatment applications on bridge decks by state departments of transportation throughout the United States. Of the three types of materials addressed in this research, epoxy-based products have the greatest ability to protect concrete and remain uncracked …
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Integrated Process Modeling and Data Analytics for Optimizing Polyolefin Manufacturing
… are one of the most widely used commodity polymers with applications in films, packaging and automotive industry. The modeling of polymerization processes producing polyolefins, including high-density polyethylene (HDPE), polypropylene (PP), and linear low-density polyethylene (LLDPE) using …
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Process and Material Modifications to Enable New Material for Material Extrusion Additive Manufacturing
… in the FFF process, post-process, and polymer composition. This research was conducted at two opposing ends of the FFF-processing temperature: low processing temperature (<100 °C) for pharmaceutical applications and high processing temperatures (>300 °C) for high-performance structural …
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Novel encapsulation technologies for small size-scale self-healing applications
… autonomic route to repairing damage in advanced polymers to extend their lifetime. A variety of self-healing systems have been developed for mechanical self-healing, protective coatings, and electronic self-healing. These self-healing systems rely on functional groups within the polymer, …