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 8 of 8 for “"Trioxane"”.
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Salt effects and correlations with the Hammett acidity function in the decomposition of trioxane by aqueous hydrochloric acid
… systems. The acid-catalyzed depolymerization of trioxane is one specific reaction which has shown relationships between rate constants and H<sub>o</sub> in aqueous media and has been studied in the present investigation for the purpose of providing a suitable background for a study of acidity in …
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High-resolution infrared spectroscopy in pursuit of C60 and other astrochemical targets
… molecules, including the polyoxymethylene 1,3,5-trioxane. C60 was first discovered during experiments intended to simulate the conditions found in carbon stars, and has since been observed via emission spectroscopy in several planetary nebulae as well as the inerstellar medium. Due to its low …
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Lipid Targets of the Antimalarial Trioxanes in <i>Plasmodium falciparum</i>
… a million annual fatalities. The antimalarial trioxanes, exemplified by artemisinin, are among the few pharmaceuticals for which clinical resistance has not become widespread. Artemisinin is a naturally occurring sesquiterpene lactone, containing a unique endoperoxide pharmacophore. Despite …
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Synthesis, Chemistry, Biological Evaluation And Structure-Activity Relationships Of Rac- And Chiral 6-Desmethyl-5Β –Hydroxy-D-Secoartemisinin And Analogs
… (a 1,2,4-trioxane) afforded a starting point upon which to conduct heretofore unexplored structure-activity relationships (SAR) about the C5 position. Additionally, as the C4 position is quintessential, via a C4 radical, to issues related to the molecular …
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High-resolution spectroscopic studies of carbon-containing species
… from gas phase and supercritical phase 1,3,5-trioxane, and fitting and modeling procedures for the analysis of C3 are included. In addition, future goals for each project, including a proposed ion source for cavity ringdown spectroscopy, are described.
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Synthesis and Characterization of a Novel Polyacetal & Design and Preparation of Superhydrophobic Photocatalytic Surfaces
… and its cationic copolymerization with trioxane initiated by boron trifluoride dibutyl etherate. The copolymerization process was monitored in situ using proton NMR. Incorporation of <strong>MDOC</strong> led to the insertion of the "stopper" unit, …
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Large-scale production of oxymethylene dimethyl ethers
… and the anhydrous reaction system OME1-trioxane. Investigations of the synthesis products in a micro distillation setup showed that all applied catalysts lead to active species in the synthesis product, negatively impacting its thermal stability. This indicates that a synthesis product …
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The aerobic, water-assisted selective oxidation of methane over platinum-based catalysts
… such as methanol, methoxymethanol and 1,3,5, trioxane, which were observed when the reactor was flooded on purpose. The experiments were then carried out in a specially-constructed trickle-bed reactor that enabled the co-feeding of liquid water. An increase in the H2O/CH4 ratio resulted in an …