Search for dissertations about: "Chemistry of Interfaces"
Showing result 6 - 10 of 204 swedish dissertations containing the words Chemistry of Interfaces.
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6. An NMR synopsis of the coordination chemistry of copper(I) dithiophosphate clusters
Abstract : The coordination chemistry of monovalent copper with O,O'- dialkyldithiophosphate chelating ligands (L = S2P(OR)2, R = alkyl) is presented by poly-nuclear clusters containing Cu4 (tetrahedral), Cu6 (trigonal antiprismatic) or Cu8 (cubic) cores where the ligands display a tri-metallic tri-connective coordination mode in the first two classes of structures (Cu4L4 and Cu6L6) and a tetra-metallic tetra-connective coordination pattern in the third class (Cu8L6(S)). In this work, the polycrystalline copper(I) O,O'-dialkyldithiophosphate (dtp) compounds - Cu4L4 (L = S2P(OiPr)2, Cu6L6 (L = S2P(OEt)2) and Cu8L6(S) (L = S2P(OR)2, R = Et, nPr, iPr, nBu, iBu and iAm) were synthesised and studied by 31P MAS and static 65Cu NMR spectroscopy. READ MORE
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7. Insights in Li-ion Battery Interfaces through Photoelectron Spectroscopy Depth Profiling
Abstract : Compounds forming alloys with lithium, such as silicon or tin, are promising negative electrode materials for the next generation of Li-ion batteries due to their higher theoretical capacity compared to the current commercial electrode materials.An important issue is to better understand the phenomena occurring at the electrode/electrolyte interfaces of these new materials. READ MORE
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8. Spectroscopic studies of solvation and adsorption properties of PVP
Abstract : The adsorption mechanism of 1-vinyl-2-pyrrolidone (VP), poly(1-vinyl-2- pyrrolidone) (PVP) and azelaic acid on synthetic gamma-aluminium oxide surfaces was investigated using FT-IR, FT-Raman, UV, 1H and 13C NMR spectroscopy. (Liquid-solid state) As a first step the solvation of VP and PVP in solvents of varying polarity, specifically water, ethylene glycol (EG), chloroform and carbon tetrachloride, was studied. READ MORE
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9. Relating the Bulk and Interface Structure of Hyaluronan to Physical Properties of Future Biomaterials
Abstract : This dissertation describes a structural investigation of hyaluronan (HA) with neutron scattering techniques. HA is a natural biopolymer and one of the major components of the extracellular matrix, synovial fluid, and vitreous humor. READ MORE
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10. Ionic liquids : The solid-liquid interface and surface forces
Abstract : Ionic liquids (ILs) present new approaches for controlling interactions at the solid-liquid interface. ILs are defined as liquids consisting of bulky and asymmetric ions, with a melting point below 373 K. Owing to their amphiphilic character they are powerful solvents but also possess other interesting properties. READ MORE