Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Chlorination reaction"”.
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The chlorination of sulfate lignin
… purpose of this investigation was to study the chlorination reaction of lignin obtained from the black liquors of the sulfate process of paper manufacture. Results of preliminary experimental work indicated that the optimum method of chlorinating lignin was by suspending or dissolving the lignin …
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Chemometric methods for the analysis of process spectra using minimal reference data
… system such as a batch or semi-batch chemical reaction, creating such a data set may be very difficult or extremely time consuming. It may not be possible to create synthetic mixtures because reaction between the various reactants may occur. If the reaction proceeds via a reactive intermediate …
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Crystallographic studies on enzymatic halogenation of natural products
… making halogenation an important tailoring reaction. To understand the mechanisms of enzymatic halogenation of natural products, X-ray crystallography was used to solve structures of enzymes from two classes of halogenases, the flavin-dependent halogenases and the non-heme iron dependent …
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Chlorination of Titanium Oxycarbide and Oxycarbonitride
The project undertook a systematic study of chlorination of titanium oxycarbide and oxycarbonitride with the aim to develop further understanding of kinetics and mechanisms of the chlorination reactions. The project studied titania, ilmenite ores, and synthetic rutile reduced by carbon in argon and …
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Regioselective Synthesis of Glycosaminoglycan Analogs
… studies, we have also discovered novel chemical reactions to modify cellulose. Systematic study of these novel chemistries is also included in this dissertation. We first demonstrated our preparation of two unsulfated GAG analogs by chemical modification of a commercially available cellulose …
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Thermochemical modeling and chemical vapor deposition of two-phase borides in the Hf-Si-B-Cl-H system
… direct attack. Thermochemical modeling of CVD reactions was done to predict the processing conditions for the deposition of two-phase HfB₂-SiB₆ or HfB₂-SiB₄ coatings. The SOLGASMIX-PV computer program was used for these calculations, which were based on ZrCl₄, SiCl₄ BCl₃, and H₂ reactant gases. …
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Α-HYDROXY FATTY ACIDS AND BIOPOLYMERS: NEW FATES FOR LIPID-ENRICHED FOOD SCRAPS
… transformed into α-hydroxy fatty acids. The reaction pathway developed on saturated fatty acids was successfully applied to the fatty acids extracted from lanolin, a biomass deriving from the scouring of sheep wool. The extraction and fractionation procedures of the biomass were carried out …
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The powerful combination of novel organosulfur methodology and continuous flow technology
… of α-sulfenyl-β-chloroenones through a NCS chlorination transformation, and their subsequent use in a Stille cross-coupling reaction to form chalcone derivatives. Key mechanistic insight into the formation of the α-sulfenyl-β-chloroenones was provided through use of reaction monitoring via a …
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Synthesis and reactivity of alpha-thio-beta-chloroacrylamides and alpha-thio-beta-chloroenones
… and stereoselectivity a very high priority. Reactions which can be conducted under mild reaction conditions and, ideally in an environmentally attractive manner, are particularly advantageous. The principal objective of this thesis was to explore the synthesis, reactivity and synthetic …