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Showing 1 to 6 of 6 for “"Solid-state 13C NMR."”.
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Organic matter structural changes during catagenesis : implications of kerogen chemical structure on petroleum yield and composition.
… including black shales, coal, algae, and biosolids. Using solid-state 13C NMR spectroscopy, structural changes of the feedstocks and petroleum products were analyzed providing deeper insight into the poorly understood chemistry of oil formation and controls on petroleum composition. A unique …
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Solid-state NMR (¹³C, ²⁷Al and ²⁹Si) study of the reaction between AlMe₃ and the silica gel surface
… H2O-reacted surface after an excess-H2O workup. Solid-state NMR (13C, 27 Al and 29Si) have been used to elucidate the structures of moieties generated on the silica gel surface at each of the stages listed above. Solid-state 13C NMR showed that Al(Me)n is the major type of moieties generated on …
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Polydimethylsiloxane Containing Block Copolymers: Synthesis and Characterization of Alternating Poly(Arylene Ether Phosphine Oxide)-B-Siloxane and Segmented Nylon 6,6 -B-Siloxane Copolymers
… air-polymer interface in comparison to the bulk state. This behavior increased in proportion to the length of the parent siloxane oligomers. Evaluation of selected optical properties, e.g., refractive indices, revealed linear trends resulting in values of compositionally weighted averages. …
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Identification of a thermal maturation high, revised maturity map, and production trends of the Late Devonian Duvernay Formation, Alberta, Canada.
… The maturity proxies used in this study are from solid-state 13C Nuclear Magnetic Resonance (NMR) and Rock Eval's Tmax along with publicly available Tmax data, produced fluid types, and the structural burial depth trends across the basin. Thermal maturity across these areas increases to the …
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Identification of battery products and intermediates through NMR spectroscopy
… tetraethylene glycol dimethyl ether (TEGDME). Solid-state 6Li magic angle spinning (MAS) NMR spectroscopy is used identify lithium products that are formed in the cathodes and differences between products formed with different catalysts and solvents present. Significant differences in the …
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SYNTHESIS AND CHARACTERISATION OF NOVEL BIOPOLYMERS VIA CLICK CHEMISTRY
… were successfully prepared via Click chemistry. NMR spectroscopy was found to be a good choice for characterisation of the resulting products. Chapter three describes the application of Click chemistry on a disaccharide compound, α,α-D-trehalose. The di-azide functionalised trehalose was …