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 765 for “"synthesis and characterization"”.
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Synthesis and characterization of polyacetylene
… of Technology, Dept. of Materials Science and Engineering, 1983.
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Synthesis and Characterization of Ferroelectric Nanomaterials
… Bi4Ti3O12 nanostructured microspheres, and cosubstituted Bi4Ti3O12 nanoparticles and ceramics were prepared using solvothermal, hydrothermal and citrate-gel methods. The ferroelectric properties of the prepared cosubstituted Bi4Ti3O12 ceramics were studied using P–E hysteresis loop, …
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Synthesis and characterization of polyamidoamine dendrons
… (PAMAM) dendrons using silica gel as support and characterize them. PAMAM dendron, a hyperbranch of the PAMAM dendrimer, was divergently synthesized on solid support. Prior to the propagation through (1) Michael addition of acryl ester to an amino reactive site of the organic phase grafted …
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Synthesis and characterization of polymer nanocomposites
… of different size, shape, aspect ratio and purity such as hydrotalcite (HT), sodium montmorillonite (MMT), single wall carbon nanotubes (SWNT) and fullerenes (FUL), at 5 and 10 wt% loading. Structural characteristics and mechanical, thermal and barrier properties of the nanocomposites …
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Synthesis and Characterization of Tetraalkylammonium Tetraalkylborides
Made available in DSpace on 2014-12-10T23:01:52Z (GMT). No. of bitstreams: 1 7414550.pdf: 4463557 bytes, checksum: 62847b29b1bf4b67c84edc977f4ed5e5 (MD5) Previous issue date: 1974
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Synthesis and characterization of cobalt nanocrystals
… single domain size were developed in the 1950's and 60's, they have hardly been verified experimentally because of the lack of appropriate material systems. This thesis is an attempt to develop such a system using metallic cobalt as a magnetic material and to verify its magnetic behavior in the …
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Synthesis and Characterization of Chalcogenide Perovskites
Chalcogenide perovskites are both an old and new group of materials. First synthesized in 1957, chalcogenide perovskites are generally sulfur and selenium compounds which contain a 3D network of corner-sharing octahedra. Not until 2015 was this material class recognized as being suitable for any …
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Synthesis and characterization of thermo-responsive polyethers
… are interesting biomaterials for drug delivery and tissue engineering applications. Glycidyl ether derivatives have gained much interests due to their thermo-responsive properties. Thermo-responsive random copolymers of glycidyl methyl ether (GME) and epoxyhexane (EH) were synthesized. Once …
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Synthesis and characterization of metal oxide nanoparticles
Nanoparticles of CuO, Co3O4 and Mn5O 8 were prepared via sol-gel chemical routes. Thermal treatments of the gels were used to obtain particles of different sizes, as determined by the widths of the Bragg lines in x-ray diffraction. To prepare CuO nanoparticles, a Cu(OH)2 gel was first produced by …
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Synthesis and Characterization of Manganese Pyridazyl Complexes
<p>Heterocyclic’s and their fused-ring derivatives have been of interest for their use in electronic materials due to their ease of production, synthetic versatility, and low cost compared to traditional inorganic materials like silicon. Pyridazines have been found to be useful in catalysis gas …
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Synthesis and Characterization of Some Rhenium Complexes
… while metals conduct electricity. Shirakawa and coworkers discovered conductive polymers in 1977.1 These conductor polymers have been extensively studied, discovering that charge transfer oxidative doping of polyacteylene could increase its conductivity by 12 orders of magnitude. …
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Exfoliation, Synthesis, and Characterization of Nanoscale Te
… materials have enjoyed more attention and emphasis in academic research than nanowires, but the latter are an important area of study for creating 1D materials, or single atom chains, the next generation materials for advancing electronic devices. Atomically thin layers can be generated …
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Synthesis and Characterization of Novel Adsorbent Fibers
This thesis is devoted to the design and development of three novel fibrous systems where the unique properties of commercially available activated carbon fibers (ACFs) were used as a foundation. In the first system, sulfonated pyropolymeric fibers derived from phenol-formaldehyde resins serve as …
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Synthesis and characterization of transition metal malondialdiminates
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-08-01
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Synthesis and characterization of conducting polymer actuators
… mechanically respond to electrochemical stimuli and have been utilized as linear actuators. To date, the most successful mechanism for actuation is ionic ingress and egress, though mechanisms based on conformational changes and molecular interactions have also been proposed. In the pursuit of new …
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