Browsing by Discipline
Now showing items 41-60 of 124
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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 ... -
Organic semiconductors containing multi-heteroatom rings
(2018)Oligomers of thiophene are ubiquitous in molecular materials research. Other ring systems, especially those lacking at least C2v symmetry are much less common. We investigated thiophene-thiazole, pyrrole-thiazole, ... -
Partial synthesis of chaksine
(1976)This thesis is concerned with the preliminary studies in the synthesis of a monoterpenoid alkaloid, chaksine, Ethyl 2-methylcyclohexanone-6-carboxylate (XI) was hydroxymethylated with formaldehyde to give Ethyl 2-me ... -
Photo-induced reactions of a photochromic fulgide in polymer matrices and in solvents
(1995)A photochromic fulgide, coimnonly known as Aberchrome 540, is amber in its ring-opened E (see document) dimethyl -3- furylethylidene) (isopropylidene) succinic anhydride] and z (see document) furylethylidene) (isopropylidene) ... -
Photolysis of para-substituted styrene polymers
(1977)This thesis describes the photolysis of para-substituted styrene polymers. Poly(vinylacetophenone), poly(p-bromostyrene), poly(p-chlorostyrene), poly(p-fluorostyrene), poly(p-isopropylstyrene), poly(p-methoxystyrene), ... -
Photolysis of poly-acyl styrene polymers
(1989)The following is a study of the long wave (wavelength >300 nm) photolysis of a series of poly acyl styrenes, in particular, poly-p-acetyl-styrene (PPAS), polyp- propionyl-styrene (PPPS), poly-o-acetyl-styrene (POAS), ... -
Potential dual purpose molecular probe for HPV16 E6: a computational and experimental approach
(2015-08-05)The goal of this project is to find a molecular probe for HPV variant 16 protein E6. This goal is accomplished using a combination of Virtual Ligand Screening (VLS) and experimental ligand binding assays. Protein E6 is ... -
Reactions of Co(II) with sodium cyanotrihydroborate in the presence of a series of bidentate and some monodentate phosphines
(1981)The reactions between Co(C10[subscript4])[subscript2].6H[subscript2]O or CoCl[subscript2].6H[subscript2]O, NaBH[subscript3]CN and some monodentate (PPh[subscript3] and Pcy[subscript3]) and a series of bidentate phosphines ... -
Reactions of Ni (II) with sodium cyanotrihydroborate in presence of some bidentate phosphines
(1982)Cyanotrihydroborate-transiton metal ion chemistry has been reviewed. -
Reactions of Ni(II) with NaBh4 and NaBh3 CN in the presence of mono-and bidentate phosphines under CO atmosphere
(1988)Phosphine-substituted carbonyl complexes of Ni have been prepared. The reaction between NiC12.6H20, NaBH4 or NaBH3CN and either PPh3 or a series of phosphines of the type Ph2P-(CH2)n-PPh2 (n=1-5) and also cis-dppe under ... -
Reactions of sodium tetrahydroborate with metal ions in the presence of nitrogen donor ligands
(1977, c197)The work described in this thesis is part of an ongoing effort in these laboratories to determine in more detail how a variety of factors, particularly the nature of added ligands, affects the type of products and the ... -
Reactivity and mechanistic study of the Sonogashira coupling and Grignard-Sonogashira coupling reactions
(2002)The interest in studying enediyne systems was stimulated by the discovery of anti-cancer agents containing enediyne functionalities, such as esperamicin and dynemicin. These compounds have potential for use as anti-tumour ... -
Reactivity study of the palladium cross-coupling synthesis of enediynes
(1999)A reactivity study looking at various aspects of the palladium catalyzed (Sonogashira) reaction for die synthesis of enediynes was performed. Alkynes were coupled to 1,2- dichloro-, 1,2-dibromo- and 1,2-diiodobenzene. ...
