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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 1851 for “"polymeric"”.
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I. Polymeric Basic Beryllium Carboxylates. Ii. Polymeric Phthalocyanines
Made available in DSpace on 2014-12-05T19:36:54Z (GMT). No. of bitstreams: 1 5805451.pdf: 4567900 bytes, checksum: 6df82e8162b58ec6975ca6796a58ae69 (MD5) Previous issue date: 1958
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Polymeric Phthalocyanines
Made available in DSpace on 2014-12-05T19:36:47Z (GMT). No. of bitstreams: 1 0025269.pdf: 3743052 bytes, checksum: 75e445d00387b3db64627ce4cfa91bf8 (MD5) Previous issue date: 1957
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Polymeric photonic crystals
Two novel and practical methods for controlling the propagation of light are presented: First. a design criterion that permits truly omnidirectional reflectivity for all polarizations of incident light over a wide selectable range of frequencies is derived and used in fabricating an all dielectric …
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Some Polymeric Metal Complexes
Made available in DSpace on 2014-12-05T19:37:45Z (GMT). No. of bitstreams: 1 6104292.pdf: 2722080 bytes, checksum: 65621b870ff93430d608f15670458f31 (MD5) Previous issue date: 1961
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Polymeric materials for neovascularization
… these strategies utilize a wide variety of polymeric systems, including hydrogels and biodegradable plastics, to deliver proangiogenic factors in a sophisticated manner to maintain a sustained proangiogenic environment. Despite some impressive results in rebuilding vascular networks, it is …
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Polymeric Transcatheter Heart Valves
… valves require life-long anticoagulation. Polymeric transcatheter aortic valve insertion (TAVI) is proposed as a solution to provide long-term durability without the need for anticoagulation. A manufacturing method involving the spray coating of polyurethane solutions onto valve moulds, …
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Higher kekulenes and Polymeric Helicenes
… was to synthesize, isolate and characterize polymeric helicenes. Because helicenes might have potential applications in the synthesis of ligands for asymmetric catalysis, molecular actuators, conductive and chiroptical materials, we are interested in developing them in polymeric form. Ring …
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Biodegradable Polymeric Ion Releasing Fillers
… and secondary caries over time. Biodegradeable polymeric ion-releasing fillers (PIRFs) synthesized from alginate have the potential to be a useful sustainable tool that can provide sustained pH independent release of ions that promote remineralization in enamel. These PIRFs were rinsed to remove …
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Non-equilibrium polymeric complex fluids
Complex fluids are commercially- and industrially-important materials which exhibit ordering on scales much larger than atomic. Their usage is typically in non-equilibrium conditions, however traditional methods for measuring rheology are not appropriate for measuring samples with gradients …
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Bubble dynamics in polymeric foams
… either by injection moulding (of non-reactive polymeric fluids) or reaction injection moulding. We use standard rheological models (Oldroyd B and Pompom) to investigate bubble growth driven by gas diffusion as a model for injection moulding. To model reaction injection moulding, we develop a …
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Impulse ageing of polymeric materials
… can lead to accelerated ageing of extruded polymeric cables. The results show that there may well be a reduction in electric field strength of the insulation of a power cable that experiences a lot of impressed lightning impulse over-voltages. Pre-designed shaped polyethylene material sample …
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Polymeric nanocapsules for pharmaceutical applications
Polymeric nanoparticles can be used for drug release in cancer therapy. Nanoparticles can be divided into nanospheres and nanocapsules, accordingly to their structure. Nanospheres are constituted by just the polymer, while nanocapsules have an inner liquid core surrounded by a polymer layer. Drug …
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Molecular modelling of polymeric glasses
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1985.
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Chemical vapor deposition of polymeric films
Poly-peri-naphthalene (PPN) is a one-dimensional (1 -D) graphite polymer with unique planar ladder-like conjugated molecular structure. PPN was predicted to be a good intrinsic conductor and have high thermal stability and high environmental stability. In this project, chemical vapor deposition …
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Microporous polymeric membranes via melt processing
Novel ultraporous and microporous membranes from immiscible polymer blends were produced via melt processing and post-extrusion treatments. Polystyrene (PS)/polypropylene (PP) and poly(ethylene terephthalate) (PET)/polypropylene (PP) blend systems with different rheological properties were studied. …
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Optically active photoresponsive multifunctional polymeric materials
… on the synthesis and the characterization polymeric derivatives bearing in the side chain carbazole or phenylcarbazole moieties linked to the (S)- 2-hydroxy succinimide or the (S)-3-hydroxy pyrrolidinyl ring as chiral groups covalently linked to the main chain through ester bonds. The last …
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A study in radiopaque polymeric materials
The problems associated with x-ray-transparent denture base are defined and conventional approaches to their solution are assessed. Consideration of elemental absorption parameters leads to the postulation that atoms such as zinc, and bromine, may be effective radiopacifiers over at least part of …
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Design of Improved Ceramic/polymeric Composites
The last chapter deals with the design, fabrication, and evaluation of a new coupling agent for glass fiber/epoxy matrix composites. This interface consisted of a thin coating of activated carbon (ACI) with high surface area to take advantage of mechanical interlocking. Furthermore, the surface …
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