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 1236 for “"functionalized"”.
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BISMUTH-FUNCTIONALIZED SORBENTS FOR RADIOIODINE CAPTURE
The soybean oil was used as a porogen to tailor porestructure of gels made with tetraethoxysilane (TEOS) and TEOS + methyltrimethoxysilane (MTMS) silica precursor. Oil concentrations of 9.09 v/v% and 33.33 v/v% were studied. The miscibility of the oil and precursor decreased as the silica gel …
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Lanthanide luminescence in Pybox functionalized metallopolymers
Lanthanide luminescence is woven into the fabric of modern day existence. Due to their narrow emission and useful red and green emission Eu(III) and Tb(III) have been extensively studied and applied as phosphors in a number of devices. It is in the pursuit of ever improving these devices' emission …
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Functionalized Graphene: Characterization and Mechanical Reinforcement
… The results shown in this study demonstrate that functionalized graphene, derived from humic acid, provides mechanical reinforcement in polymer nanocomposites. This provides a new, alternative source for graphene-like material and eliminates the need for an oxidative step currently used to …
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Synthesis of Perylenediimide-Functionalized Silsesquioxane Nanostructures
<p>Organic semiconductors functionalized nanostructures are becoming as promising materials for electronic device applications including organic photovoltaics (OPVs). Perylenediimide (PDI) derivatives have also been known as one of the best n-type organic semiconductors. PDI derivatives can form …
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Polycondensation of Bridged Amino-Functionalized Trialkoxysilanes.
<p>The reduction of CO<sub>2</sub> emission has been a worldwide mission to resolve global warming predicament. Mesoporous silsesquioxanes, which stabilized by organobridges and has high content aminon absorption site, can serve as a potential CO<sub>2</sub> adsorbent. Synthesis of such material is …
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Azobenzene-functionalized molecular glasses for holographic applications
… we also examined low molecular weight materials functionalized with bisazobenzene moieties. This enabled us to achieve higher maximum refractive index modulations. Liquid-crystalline behaviour could be introduced with the incorporation of substituents at the bisazobenzene moiety. Subsequent …
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Metallic Ground State of Functionalized Carbon Nanotubes
Single-wall carbon nanotubes (SWCNTs) are a fascinating material because they exhibit many outstanding properties. Due to their unique geometric structure, they are a paradigm for one-dimensional systems. Furthermore, depending on their chirality, they can be either metallic or semiconducting. The …
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Synthesis and Evaluation of Densely-Functionalized Troponoids
<p>Herein, we document our efforts to expand the scope of troponoid synthetic methodology towards densely-substituted scaffolds. This body of work has focused primarily on an oxidopyrylium cycloaddition/ring-opening strategy for the synthesis and biochemical evaluation of troponoids for assistance …
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Chemical vapor deposition of functionalized isobenzofuran polymers
… First, we explore chemical vapor deposition of functionalized isobenzofuran films using two different functional groups: pentafluorophenolate ester and alkyne. Both functional groups can be further modified using either ester substitution or click chemistry, respectively. The resulting thin …
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Functionalized isonitrile complexes of technetium as radiopharmaceuticals
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1987.
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Sterically Crowded Copolymers Based on Functionalized Stilbenes
… New sterically crowded polyelectrolytes based on functionalized stilbenes with maleic anhydride or functionalized N-phenylmaleimides were prepared via a "protected" precursor polymer strategy. The polyelectrolyte precursors readily dissolved in organic solvents and were characterized by 1H NMR, …
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Silica Microspheres Functionalized with Self-assembled Nanomaterials
A major limitation of silica-based high-Q microcavities is the lack of functionalities such as gain, plasmonic resonance, and second-order nonlinearity. Silica possesses third order nonlinearity but cannot produce second order nonlinearity, plasmonic resonances, or fluorescence emission. The key to …
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Removing Arsenic From Water Using Surface-Functionalized Fabrics.
North Carolina State University Theses Textile Engineering, Chemistry and Science.
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Fabrication of multifunctional nanocomposites using functionalized carbon nanofibers
… composites (or nanocomposites) containing functionalized carbon nanofibers (CNFs) were developed. The methodologies address current manufacturing issues of nano-engineered polymeric composites by effectively incorporating functionalized CNFs into polymer matrix and glass fiber layers. For …
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Functionalized Dipyrrins as Ligands for Photoactive Coordination Complexes
… extended to an azido group. Starting from these functionalized dipyrromethanes the corresponding BODIPYs were prepared. Furthermore, the pre-functionalized dipyrromethanes were oxidized to their respective dipyrrins and the subsequent synthesis of (p-cymene)(dipyrrinato)ruthenium(II) complexes …
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Functionalized Polyisobutylene: From Synthesis to Properties and Applications
Polyisobutylene (PIB) is a polymer well known for its desirable properties such as high chemical stability, impermeability to gases, and biocompatibility in certain applications. However in some applications it is limited by properties such as high hydrophobicity, lack of chemical functionalities, …
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