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Showing 1 to 20 of 65 for “"Stilbene"”.
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Characterization of deuterated stilbene: an organic scintillator for neutron spectroscopy
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-04-06 without embargo terms
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Crystallization studies of liquid crystalline polycarbonates based on substituted stilbene mesogen
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1995.
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Characterization of two grapevine stilbene synthase genes from Vitis vinifera 'Cabernet Sauvignon' and Vitis aestivalis 'Norton' /
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.]
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First Principles Studies of Cis-Trans Photoisomerization Dynamics and Excited States in Ethylene, Stilbene, Azobenzene and TATB
In principle, the energy required for electronic excitation may also arise from collisions with one or more nearby molecules. One might suggest an importance of electronic excitation in chemical processes at high temperatures and pressures, such as detonation. This possibility was tested in solid …
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Synthesis and Characterization of Highly Functional Substituted Stilbene Copolymers and Semi-crystalline Poly(aryl ether sulfone)s
… of N, N, Nâ , Nâ -tetraalkyl-4, 4â -diaminostilbenes (TDAS) with maleic anhydride. Dynamic light scattering, 2H solid state NMR and persistence length measurement reveal high chain rigidity of the polymer backbone. Double quantum heteronuclear local field solid state NMR spectroscopy (2Q-HLF …
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Sterically Crowded Copolymers Based on Functionalized Stilbenes
… charged polyelectrolytes based on substituted stilbene comonomers. 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 …
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Synthesis of Ester Derivatives of Resveratrol as Potential Anti-Cancer Drugs
… is a naturally occurring phytoalexin of the stilbene family produced by various plants in response to stress, UV radiation, and fungal attack. It is primarily found in peanuts, berries, grape skin, and red wine. Resveratrol has been found to exhibit anti-cancer, anti-inflammatory, anti-aging, …
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Synthesis and Solution Properties of Semi-rigid Polyelectrolytes and Polyampholytes
The incorporation of substituted stilbenes in copolymers affects the resulting solution properties and their controlled radical polymerizations. Substituted stilbene monomers readily polymerize in an alternating fashion with acceptor comonomers such as maleic anhydride and maleimide. These …
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Functional Polymers Containing Semi-Rigid Alternating Sequences
… Of particular interest in our group are the stilbene-maleic anhydride/maleimide alternating copolymers. These copolymers possess sterically congested backbones and precisely placed functional groups arising from the strictly alternating copolymerization. The research in this dissertation is …
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Synthesis and Polymerization of Substituted Stilbenes with Maleic Anhydride for Membrane Solubilization and Protein Extraction
… composition, and dispersity. Methyl substituted stilbene and maleic anhydride copolymers with controlled sequences and compositions demonstrated membrane solubilization and protein isolation activity at levels comparable to SMA2000, with several advantages that include an increase in the useable …
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Toxicological Analysis of Acaricides for Varroa Mite Management
… I report a toxicological analysis of stilbene products against acaricide-susceptible and -resistant mites. My results find a significant increase in metabolic detoxification enzyme activities in acaricide-resistant mites compared to susceptible mites. Acetylcholinesterase of …
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Periodic Mesoporous Organosilica: Preparation Characterization and Applications of Novel Materials
… or biphenylenebridged) and functional stilbene monomers (cis and trans) (1, 2). The effect of the different synthetic procedures and varying amounts of functional stilbene monomer on the properties of the materials was examined. The functional transstilbene component was determined to …
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Synthesis and characterization of rigid nanoporous hypercrosslinked copolymers for high surface area materials with potential hydrogen storage capabilities
… N-substituted maleimide and functionalized stilbene alternating copolymers into a "hypercrosslinked system" to achieve high rigidity, high surface areas, high aromatic content and good thermal stability. Hypercrosslinked copolymers of N-(3-methylphenyl)maleimide (3MPMI), 4-methyl stilbene …
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Studies Related to the Alternating Copolymerization of Substituted Stilbenes
Stilbene containing polymers are a group of interesting and versatile polymers. The pendent phenyl ring along the polymer backbone can impart unusual rigidity to the polymer backbone due to steric repulsion. By functionalizing stilbene, a variety of functional groups and ionic groups can be …
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Chemomechanics with a molecular force probe
… utility of one such broadly useful probe—stiff stilbene. Various reactive moieties were incorporated in inert linkers that constrained stiff stilbene to highly strained macrocycles. Such series eliminated many constraints of conventional microscopic force probe, provided direct experimental …
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Synthesis and Characterization of Nanoporous Copolymers with Potential Gas Storage Applications
… contained tert-butyl carboxylate-functionalized stilbene or tert-butyl carboxylate-functionalized styrene, and maleic anhydride or tert-butyl carboxylate-functionalized phenyl maleimide, were investigated using nitrogen sorption/desorption isotherms at 77 K and molecular simulations. These …
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Reactions of various aromatic nitro-compounds and anthraquinones with selected bases and nucleophiles
… , 2 t-dinitrobibenzyl, but not the corresponding stilbene derivative even after a longer time . A rather i nteresting result was obtained with 1-nitro-2,4,6- trimethylbenzene which gave a stilbene derivative only. Also the corresponding stilbene was obtained from bis-(4-nitrophenyl)-methane in a …
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Machine-learning models and shielding materials for radiation protection of patients and personnel in ion therapy
… using a novel organic scintillator, deuterated stilbene (stilbene-d12), capable of detecting and discriminating both gamma rays and neutrons to perform real-time range verification. After thorough experimental characterization of the stilbene-d12 light-output response, we used Monte Carlo …
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Activating Mn(III)F3 towards homo- and heterogeneous oxidative catalysts
… oxidative catalysts for the epoxidation of trans-stilbene using iodosobenzene as the oxygen source. During these catalytic studies it is shown that acetonitrile is the most suitable solvent and the presence of catalysts 1-5 are vital in successful oxidations, giving extremely low yields and very …
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Structure-Function Relationships in Organic Charge-Transfer Complexes
… dibenzotetrathiafulvalene-TCNQ (DBTTF-TCNQ), and stilbene-F4TCNQ.
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