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Investigation of the Formation and Photo-activity of Titanium Dioxide and PolyelectrolytesMcAuley, Scott 12 January 2011 (has links)
Anatase titanium dioxide was synthesized using a hydrothermal treatment of bis(ammonium lactato) titanium dihydroxide (ALT) under a variety conditions. Heating the precursor produces highly crystalline particles that do not undergo a crystal phase transition upon calcination; however, it does remove a layer of surface adsorbed lactate. Three titanium-polyelectrolyte composites (PAA, PAH, and PEI) were formed through electrostatic polymer chain collapse. In order to gain a measure of the relative photo-activity of these various samples the interaction and de-colouration of methylene blue (MB) was investigated. The composite particles were not active whereas the non-composite titanium dioxide and solution phase PAA were individually active. MB was found to form dimers with anionic PAA through electrostatic interaction; however, there was no difference in the de-colouration rate of these dimers versus the monomers. Finally, it was found that pre-irradiating the polyelectrolyte prior to combining with MB decreases the de-colouration rate.
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Investigation of the Formation and Photo-activity of Titanium Dioxide and PolyelectrolytesMcAuley, Scott 12 January 2011 (has links)
Anatase titanium dioxide was synthesized using a hydrothermal treatment of bis(ammonium lactato) titanium dihydroxide (ALT) under a variety conditions. Heating the precursor produces highly crystalline particles that do not undergo a crystal phase transition upon calcination; however, it does remove a layer of surface adsorbed lactate. Three titanium-polyelectrolyte composites (PAA, PAH, and PEI) were formed through electrostatic polymer chain collapse. In order to gain a measure of the relative photo-activity of these various samples the interaction and de-colouration of methylene blue (MB) was investigated. The composite particles were not active whereas the non-composite titanium dioxide and solution phase PAA were individually active. MB was found to form dimers with anionic PAA through electrostatic interaction; however, there was no difference in the de-colouration rate of these dimers versus the monomers. Finally, it was found that pre-irradiating the polyelectrolyte prior to combining with MB decreases the de-colouration rate.
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Synthesis of cationic macromonomers by living polymerizations for comb-branched polyelectrolytes /Zeng, Faquan. January 2001 (has links)
Thesis (Ph.D.) -- McMaster University, 2001. / Includes bibliographical references. Also available via World Wide Web.
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Synthesis and characterization of polyelectrolytes and aqueous latices.Wu, Xiao Yu. Pelton, R.H. HAMIELEC, A.E. WOODS, D.R. Unknown Date (has links)
Thesis (Ph.D.)--McMaster University (Canada), 1993. / Source: Dissertation Abstracts International, Volume: 54-12, Section: B, page: 6237. Advisers: R. H. Pelton; A. E. Hamielec; D. R. Woods.
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Polyelectrolyte multilayer coatings for conductive nanomaterials patterning and anti-wrinkling applicationsHendricks, Troy Richard. January 2008 (has links)
Thesis (Ph.D.)--Michigan State University. Dept. of Chemical Engineering, 2008. / Title from PDF t.p. (viewed on Apr. 3, 2009) Includes bibliographical references (p. 75-84). Also issued in print.
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Influence of the membrane ion exchange capacity on the catalyst layer of proton exchange membrane fuel cell /Navessin, Titichai. January 1900 (has links)
Thesis (Ph.D.) - Simon Fraser University, 2004. / Theses (Dept. of Chemistry) / Simon Fraser University. Includes bibliographical references.
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Modeling and analysis of proton exchange membrane fuel cell /Parikh, Harshil R. January 2004 (has links)
Thesis (M.S.)--Ohio University, March, 2004. / Includes bibliographical references (leaves 69-71).
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DNA condensate morphology Examples from the test tube and nature /Vilfan, Igor Drasko. January 2005 (has links)
Thesis (Ph. D.)--Chemistry and Biochemistry, Georgia Institute of Technology, 2006. / Nicholas V. Hud, Committee Chair ; Donald F. Doyle, Committee Member ; Rigoberto Hernandez, Committee Member ; Roger M. Wartell, Committee Member ; Loren D. Willliams, Committee Member.
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Kinetics and catalysis of the water-gas-shift reaction : a microkinetic and graph theoretic approachCallaghan, Caitlin A. January 2006 (has links)
Dissertation (Ph.D.)--Worcester Polytechnic Institute. / Keywords: microkinetics, reaction routes, mechanism analysis, water-gas-shift. Includes bibliographical references (p.295-305).
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Modeling and analysis of proton exchange membrane fuel cellParikh, Harshil R. January 2004 (has links)
Thesis (M.S.)--Ohio University, March, 2004. / Title from PDF t.p. Includes bibliographical references (leaves 69-71)
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