Browsing by Discipline
Now showing items 1-20 of 75
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Aspects of the environmental chemistry of methoxychlor
(1980)Preliminary investigations on the Environmental Chemistry of Methoxychlor [2,2-bis (p - methoxyphenyl)-1,1,1- trichloroethane], a potential DDT replacement, have been conducted with emphasis on its degradation by ... -
Bidentate phosphine complexes of copper (I) : their syntheses and interactions with sodium tetrahydroborate and sodium cyanotrihydroborate
(1981)Copper(l) chloride and perchlorate complexes of the types (L~L)CuCl, (L-L)[subscript 3]Cu[subscript2]X[subscript2] (X=Cl-,C10-4), C(L-L)[subscript2]Cu]C10[subscript4] (L-L=DPPM, DPPE, trans VPP, cis VPP, DPPP, DPPB,DPPPe,DPPH) ... -
Complexes of ethylxanthate and N, N-diethyldithiocarbamate and their adducts with some nitrogen bases
This thesis concerns first row transition metal complexes of ethylxanthate and diethyldithiocarbamate (dtc). Complexes of the type M(Xan)2 and (see document for formula) have been prepared and studied. It was found that ... -
Decomposition of 2-propanol over vanadium pentoxide and modified vanadium pentoxide catalysts
(1977)The catalytic decomposition of 2-propanol has been investigated in a flow system from 200-300°C on vanadium pentoxide and modified vanadium pentoxide catalysts. Dehydration, dehydrogenation and propane formation were ... -
Dielectric relaxation and infrared studies of hydrogen bonding
(1985)Dielectric relaxation and infrared study of a number of associating (H-bonding) compounds in glassy media, mainly polystyrene, have been carried out. The dielectric measurements by a General Radio 1621 Precision ... -
Dielectric relaxation studies of some diaryl molecules in polystyrene matrices
(1978)Dielectric relaxation studies of a number of diaryl molecules dispersed in atactic polystyrene and in some cases as solid discs have been carried out. Preparation of the polystyrene matrices and the solid disks, and the ... -
Dielectric studies of molecular and intramolecular motions in polystryrene matrices
(1977)Dielectric absorption studies of a variety of polar solutes containing rotatable groups and of some analogous rigid molecules dispersed in atactic polystyrene have been carried out. Preparation of the solutions as solid ... -
Dielectric studies of molecular motions in some solids
(1982)Dielectric absorption of a number of nonpolar, weakly polar and fairly polar molecules in the pure solid state are studied. Measurements of these solids using either a General Radio 1621 Precision Capacitance Measurement ... -
Dielectric studies of rigid and flexible molecules in various media
(1984)This thesis investigates mainly the molecular and intramolecular relaxation processes of some aromatic and aliphatic molecules containing rotatable polar groups and some analogous rigid molecules dispersed in (a) ... -
Electrochemical oscillations during the anodic oxidation of sulfide
(2005)Sulfide is most often encountered as a waste product of the pulp and paper, petroleum, and mining industries. Organic decomposition is another major source of sulfide. During my M. Sc. program, I have studied electrochemical ... -
Hydrolysis of silicone polymers in aqueous systems
(2001)Silicon-29 and 'H NMR spectroscopy were used to investigate the hydrolysis of methyl silicones in a variety of aqueous environments. Dilute acid, dilute base and one or more of the dissolved constituents of blood plasma ... -
Investigation of the molecular basis for silicon biofunctionality
(2004)Despite advances in our understanding of the beneficial role of silicon in the biosphere, surprisingly little is known of the molecular mechanism by which silicon is absorbed, transported, accumulated and deposited by ... -
Low temperature pyrolysis of wood waste materials
(1976)The pyrolysis of jack pine bark, jack pine sawdust, and cellulose powder has been studied by thermogravimetric (TG), and isothermal weight-loss methods in both inert and oxidizing atmospheres. The effects of particle ... -
Microbial toxicity assessment and biodegradation of triclopyr using Arthrobacter globiformis and Pseudomonas pictorum
(1990)Triclopyr (3,5,6-trichloro-2-pyridinyloxyacetic acid) was investigated for biodegradation using Arthrobacter and Pseudomonas sp. bacteria. No evidence of the proposed major metabolite, 3,5,6-trichloro-2-pyridinol was found ... -
Molecular and intramolecular relaxation processes of small molecules
(1980)The dielectric relaxation method was used to determine the activation parameters of some ethane derivatives and simple amides. A General Radio 1615-A capacitance bridge was utilized to obtain the energy barriers of the ... -
NMR studies of lignin models, derivatives and bleaching effluents
(1995)NMR problems related to assignment techniques and relaxation restrict the use of NMR in the structural analysis of lignin. These problems have been addressed in three practical studies in this thesis involving a lignin ... -
NMR study of aqueous tetraalkylammonium silicates
(1994)Silicon-29 nuclear magnetic resonance (NMR) spectroscopy has been used to investigate the equilibrium distribution and kinetics of silicate oligomers in aqueous tetraalkylammonium silicate solutions. Certain tetraalkyl ... -
Optical determination of metal-semiconductor Schottky barriers
(1982)The photovoltage produced by a Schottky barrier photocell shows a strong temperature dependence if the barrier is not too large. We have used this temperature dependence to obtain the barrier height for several ...
