Browsing Theses by Subject "Chemistry"
Now showing items 1-20 of 266
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Advanced research on Lithium-Sulfur battery : studies of lithium polysulfides.
(University of Waterloo, 2013-10-03)This thesis was devised as a fundamental study of the Li-S system by the use of 7Li Magic Angle Spinning (MAS) Nuclear Magnetic Resonance (NMR), X-ray Absorption Near- Edge Structure (XANES), and Non-Resonant Inelastic ... -
Advanced Separation Techniques in the Analysis of Environmental Pollutants
(University of Waterloo, 2012-04-30)Recent developments in chromatographic supports and instrumentation for liquid chromatography are enabling rapid and highly efficient separations. Various analytical strategies have been recently proposed, for example the ... -
Advances in Biamperometry with Applications in Ocular Toxicology
(University of Waterloo, 2013-10-02)This thesis presents advances in biamperometry, together with applications cyclic biamperometry, in in vitro ocular cytotoxicity assessment. For the cytotoxicity/viability assessment, cultured human corneal epithelial cells ... -
Advances in Multidimensional Chromatography
(University of Waterloo, 2012-07-23)Comprehensive two-dimensional gas chromatography (GC×GC) is among the most powerful methods used to separate complex samples. Two columns of different selectivities are coupled in series through a special interface ... -
Advances in solid-phase microextraction as sample preparation method for food analysis.
(University of Waterloo, 2015-02-25)Within all steps involved in the analytical process, sample preparation is considered the most time-consuming step. Therefore, substantial efforts have focused on the search for automated sample preparation strategies that ... -
Advances in the density matrix renormalization group method for use in quantum chemistry
(University of Waterloo, 2008-05-01)Despite the success of modern quantum chemistry in predicting properties of organic molecules, the treatment of inorganic systems, which have many close lying states, remains out of quantitative reach for current methods. ... -
Aggregation of Amyotrophic Lateral Sclerosis-Associated Cu/Zn Superoxide Dismutase
(University of Waterloo, 2010-05-21)Amyotrophic lateral sclerosis (ALS) is a devastating, progressive, and fatal neurodegenerative disease. Despite the fact that ALS is the most common motor neuron disease in adulthood, there is no effective treatment for ... -
Application of Microwave‐Assisted Technologies for the Analysis of Chlorinated Solvents in Rock Samples
(University of Waterloo, 2012-01-25)It has been a direction for research of late to examine the extraction process of volatile organic compounds (VOCs) from solid matrices. Removal of VOCs from a solid matrix can be challenging due to the nature of the analyte ... -
Application of Squaric acid to The Preparation of Bioactive Compounds
(University of Waterloo, 2008-08-28)Nucleosides and nucleoside analogues exhibit a broad spectrum of biological activities including antiviral, anticancer, antibacterial and antiparasitic activities, which generally result from their ability to inhibit ... -
Applications of Iodonium Ylides for Donor-Acceptor Cyclopropane Synthesis
(University of Waterloo, 2021-11-30)The application of hypervalent iodine (HVI) reagents in the field of organic chemistry has emerged as a viable option for many different useful organic transformations. There have been many considerable contributions made ... -
Applications of Membrane Extraction with a Sorbent Interface
(University of Waterloo, 2009-01-22)Membrane extraction with a sorbent interface (MESI) is a sample preparation technique with a rugged and simple design allowing for solvent-free, on-line performance. When coupled to gas chromatography (GC), MESI is an ... -
Approaches to the Inhibition of Class II Fructose-1,6-Bisphosphate Aldolase
(University of Waterloo, 2009-05-22)Fructose-1,6-bisphosphate (FBP) aldolase (E.C. 4.1.2.13) catalyzes the reversible aldol condensation of dihydroxyacetonephosphate (DHAP) and glyceraldehyde-3-phosphate (G3P) in glycolysis, gluconeogenesis and the Calvin ... -
Arborescent Copolymers: Synthesis, Properties & Metallic Nanoparticle Templating
(University of Waterloo, 2011-08-26)Graft copolymers with a dendritic (arborescent) architecture and unimolecular micelle properties have been synthesized and examined for their solution properties as well as their ability to serve as templates for the ... -
Arborescent Polymers From "Click" Chemistry and Other Methods
(University of Waterloo, 2014-01-02)Graft polymers with a dendritic architecture (arborescent polymers) were synthesized by “click”, anionic, and cationic grafting. Arborescent polystyrene and polybutadiene systems were synthesized by “click” coupling using ... -
Arborescent Polystyrene-graft-Polyisoprene Copolymers as Polymer Processing Additives
(University of Waterloo, 2009-05-01)Some commodity polymers such as linear low density polyethylene (LLDPE) suffer from melt defects including sharkskin, cyclic melt fracture, and gross melt fracture during processing. The occurrence of these defects sets ... -
Aspects of Polymer Chain Dynamics in Solution Studied by Fluorescence
(University of Waterloo, 2008-04-14)Several pyrene-labeled polymers and polypeptides were synthesized and their chain dynamics were characterized using steady-state and time-resolved fluorescence techniques. Firstly, four series of pyrene-labeled polystyrenes ... -
Asymmetric Alkenylation of Enones and Other α,β-Unsaturated Carbonyl Derivatives Using Chiral 3,3′-Disubstituted Binaphthols and Boronates
(University of Waterloo, 2009-05-22)Various α,β-unsaturated carbonyl compounds and derivatives were explored in order to expand the range of substrates for the 1,4-addition of alkenylboronates using 3,3′-disubstituted binaphthols. Enones 2.60 were examined ... -
Asymmetric Conjugate Addition of Arylboronates to α,β-unsaturated Enones Catalyzed by Substituted Binaphthols
(University of Waterloo, 2009-10-01)Conjugate addition reactions are one of the most widely used carbon-carbon bond forming reactions in organic synthesis. This reaction can form a chiral center and can be used for the synthesis of structurally complex ... -
Asymmetric Conjugate Addition of Boronates to N-Acylimines and β-Silyl-α,β-unsaturated Ketones Catalyzed by 3,3'-Disubstituted Binaphthols
(University of Waterloo, 2009-01-23)In order to extend the scope of asymmetric conjugate alkenylation catalyzed by 3,3′-disubstituted binaphthols, two classes of compounds were examined. Asymmetric 1,4-addition of alkenylboronates onto N-acylimines was ... -
Asymmetric Synthesis using 3,3'-Disubstituted Binaphthol-modified Boronates
(University of Waterloo, 2006)A number of 3,3'-disubstituted binaphthol-modified allylboronates (<strong>2. 42a-m</strong>) were prepared from the reaction between triallylborane and the corresponding 3,3'-disubstituted binaphthols. These chiral ...