Browsing by Discipline
Now showing items 21-40 of 52
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Dispersion and flocculation affinity of anionically charged kraft lignin
(2018)Softwood kraft lignin is a biodegradable, renewable, and environmentally friendly natural polymer. Although kraft lignin is widely produced in Canada, it is predominantly underutilized as fuel because it is only soluble ... -
The Effect of Pesticides on the Degradation of Oxobiodegradable Agricultural Mulch Films
(2015)Oxobiodegradable agriculture mulch films made from polyethylene (PE) are known to have many benefits for agriculture practice, including increased yields and resource efficiency, without the drawback of removing the ... -
Expansion of the applicability of the Truce-Smiles rearrangement
(2022)The Truce-Smiles rearrangement is a synthetically useful and easily performed reaction which can be used to condense multiple steps of a synthesis. The nucleophilic aromatic substitution in this reaction produces a chiral ... -
Flocculation performance of lignin-acrylamide derivatives
(2019)Wastewater produced in different industries contains fine suspended particles that raise a number of environmental concerns due to their potential toxicity and physicochemical properties and make their removal from industrial ... -
Gallium nitride, indium nitride, and heterostructure development using the MEAglow growth system
(2014-12-11)This thesis presents an in depth study of semiconductor development using a new process termed Migration Enhanced Afterglow (MEAglow). The MEAglow growth reactor is housed in the Lakehead University Semiconductor Research ... -
Growth and characterization of group III-nitrides by migration enhanced afterglow epitaxy
(2014-12-11)The work presented in this thesis investigates the growth and properties of group III- nitride semiconductors that were grown using the Migration Enhanced Afterglow Epitaxy (MEAglow) method. This work was to enhance the ... -
An investigation of saccharide complexation by aqueous oxoacids. Can oxoacids mediate A1-2 quorum sensing in bacteria?
(2013-02-12)The goal of this investigation was to determine whether it is plausible for bacterial AI-2 quorum sensing to be selectively regulated by environmentally available oxoacids. In particular, we investigated the ability of ... -
Lignin modification to produce hydrophobic products
(2017)Kraft lignin is not widely utilized for industrial applications. In this MSc work, kraft lignin was modified by grafting hydrophobic groups to produce hydrophobic materials. The main objective was to study the grafting of ... -
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, ... -
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 ... -
Ruthenium half-sandwich complexes containing novel anionic (phosphino) tetraphenylborate ligands
(2009)In an attempt to expand upon previous work involving ruthenium-arene complexes bearing anionic (phosphino) tetraphenylborate ligands, and possibly provide further insight into the products obtained, a series of metal ... -
Ruthenium piano stool complexes incorporating novel bis(pyrrolidinyl)alkylphosphines
(2012-11-10)Conventional phosphine ligands (i.e., those typically bearing alkyl and/or aryl substituents) have played a crucial role in the development of transition metal coordination chemistry. Many structural and electronic variants ... -
Ruthenium-Tris(Pyrazolyl)methane complexes as potential candidates for cancer chemotherapy agents
(2009)The MeCN ligands of complex 1 were substitutionally inert, however, under forcing conditions the DMSO ligands of complex 2 were displaced by chelating 1,2-bis(diphenylphosphino)ethane to produce complex 6. Structural ... -
Self-assembled thin films of thiocyanate and selenocyanate bithiophenes
(2015-06-15)Presented herein is the organic synthesis and thin film (TF) assembly of six alkyl-substituted thiocyante and selenocyante bithiophene molecules: NCSe-T2-Hx, NCS-T2-Hx, NCS-Hx-T2-Hx, NCSe- Hx-T2-Hx, NCS-Hx-T2-Hx-SCN and ... -
The stereochemical impact of chiral ionic liquids on [2+2] photochemical cycloadditions and aldol reactions
(2020)Eight chiral ionic liquids have been prepared for use as solvents to test whether they can induce enantioselectivity in both photochemical [2+2] cycloadditions and aldol reactions using a variety of starting materials. ... -
A study in lignin capability to improve strength and water absorbency of starch polymers: a potential heat-resistant fluid-loss-controller in water based drilling fluids
(2021)In the oil and gas industries, drilling deep wells has rapidly become more significant to meet the global demand. The design of drilling fluids and choosing the proper additives are very important for the drilling operation's ... -
Sulfo-functionalization of lignin and its impact on the stabilization of colloidal systems
(2021)Lignin macromolecules, derived from renewable biomass resources, have gained extensive interest during the past decade as a sustainable substitute for synthetic oil-based materials. The main goal of this dissertation was ... -
Synthesis and applications of room temperature ionic liquids
(2017)A variety of room temperature ionic liquids have been synthesized and applied to various reactions. Four of these ionic liquids were prepared in a chiral manner: [1-butyl-3- methylimidazolium][L-lactate], [1-butyl-3-me ...