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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
91

Neutralization-reionization mass spectrometry and computational studies of hydrogen atom adducts to the amide bond /

Syrstad, Erik Alan. January 2004 (has links)
Thesis (Ph. D.)--University of Washington, 2004. / Vita. Includes bibliographical references (leaves 164-172).
92

Physico-chemical studies on radicals of flavoproteins and models

Eriksson, L. E. Göran. January 1971 (has links)
Avhandling--Tekniska Högskolan, Stockholm. / Extra t.p., with thesis statement, inserted. Includes bibliographical references.
93

The synthesis and electron spin resonance study of BIS (3, 5-di-tertiarybutyl, 4-hydroxyphenyl) dimethylsilane

D'Angelo, Paul Frank, January 1967 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1967. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
94

High resolution spectroscopy of free radicals /

Leung, Wan-sze. January 1998 (has links)
Thesis (Ph. D.)--University of Hong Kong, 1998. / Includes bibliographical references.
95

Absolute rate constants for some reactions of the triethylamine-boryl radical and the borane radical anion /

Sheeller, Brad, January 1900 (has links)
Thesis (M.Sc.) - Carleton University, 2001. / Includes bibliographical references (p. 86-90). Also available in electronic format on the Internet.
96

The production of free radicals in solution ...

Colburn, William H. January 1940 (has links)
Thesis (Ph. D.)--University of Chicago, 1938. / Reproduced from type-written copy. "Private edition, distributed by the University of Chicago libraries, Chicago, Illinois." Includes bibliographical references.
97

I.A study of free radicals. II. A method for determining the structure of organic stannonic acids and a new method of preparation of organo-mercuri compounds ...

Daskais, Morris Hyman, January 1936 (has links)
Thesis (Ph. D.)--University of Chicago, 1929. / Lithoprinted. "Private edition, distributed by the University of Chicago libraries, Chicago, Illinois."
98

Computational studies of gas-phase radical reactions with volatile organic compounds of relevance to combustion and atmospheric chemistry

Merle, John Kenneth, January 2005 (has links)
Thesis (Ph. D.)--Ohio State University, 2005. / Title from first page of PDF file. Document formatted into pages; contains xvii, 259 p.; also includes graphics (some col.). Includes bibliographical references (p. 233-259). Available online via OhioLINK's ETD Center
99

Neutralization and reionization mass spectrometry and computational studies of small biomolecule radicals in the gas phase /

Yao, Chunxiang. January 2007 (has links)
Thesis (Ph. D.)--University of Washington, 2007. / Vita. Includes bibliographical references (leaves 145-152).
100

Siloxyl and Hydroxyl functionalized polymers by atom transfer radical polymerization

Mputumana, Nomfusi Augusta 06 1900 (has links)
The syntheses of siloxyl and hydroxyl chain end functionalized polystyrene and poly(methyl methacrylate) by Atom Transfer Radical Polymerization (ATRP) were effected by the following methods: (a) α-Siloxyl functionalized polymers were prepared in quantitative yields via a one-pot ATRP synthesis method for the polymerization of styrene or methyl methacrylate using a new siloxyl functionalized initiator adduct, formed in situ by the reaction of (1-bromoethyl)benzene with 1-(4-t-butyldimethylsiloxyphenyl)-1- phenylethylene in the presence of CuBr/bpy or CuBr/PMDETA as catalysts in diphenyl ether at 90 -110 oC. The polymerizations proceeded via controlled living radical polymerization methods and α-siloxyl functionalized polymers with predictable number average molecular weights (Mn = 1.8 x 103 - 17.40 x 103 g/mol), narrow molecular weight distributions (Mw /Mn = 1.03 - 1.41) and regiospecificity of the functional groups were obtained in quantitative yields. Similarly, the one-pot ATRP synthesis method for the preparation of α-bis(siloxyl) functionalized polymers were effected by the initiation of styrene or methyl methacrylate polymerization with a new bis(siloxyl) functionalized initiator adduct, formed by the in situ reaction of 1,1-bis(4-t-butyldimethylsiloxylphenyl)- ethylene with (1-bromoethyl)benzene in the presence of CuBr/bpy or CuBr/ PMDETA as catalytic systems in diphenyl ether at 90 -110 oC. Each polymerization reaction proceeded via a controlled living fashion to afford quantitative yields of the corresponding α-bis(siloxyl) functionalized polymers with predictable number average molecular weights (Mn = 1.7 X 103 - 15.00 x 103 g/mol), narrow molecular weight distributions (Mw /Mn = 1.03 - 1.35) and good control of chain end functionality. The acid catalyzed hydrolysis of α-siloxyl and α-bis(siloxyl) chain end functionalized polymers afforded the corresponding α-hydroxyl and α-bis(hydroxyl) chain end functionalized polymers, respectively. Polymerization kinetic data was employed to determine the controlled/living character of each ATRP reaction leading to the formation of different siloxyl functionalized chain end functionalized polymers. Polymerization kinetic measurements show that the polymerization follows first order rate kinetics with respect to monomer consumption and the number average molecular weight increases with percentage monomer conversion, resulting in the formation of polymers with narrow molecular weight distributions. Thin layer chromatography (TLC), 1H and 13C Nuclear Magnetic Resonance Spectrometry (NMR), Fourier Transform Infrared Spectroscopy (FTIR), Size Exclusion Chromatography (SEC), Gas Chromatography (GC) and non - aqueous titrations were used to determine the structures and purity of the siloxyl functionalized initiator precursors as well as the siloxyl and hydroxyl functionalized polymers.

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