Dissertations / Theses on the topic 'Hydrazine'
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Hsu, Ivann Hong, Joanna Emerson, Andrew Wong, and Phillip Zinsli. "2-HYDROXYETHYL HYDRAZINE AND HYDRAZINE HYDRATE PLANT DESIGN." Thesis, The University of Arizona, 2009. http://hdl.handle.net/10150/192492.
Full textSaalmann, Thomas. "Umwandlung cyclischer Hydrazine." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=97226888X.
Full textGuevrekian, Soghomoniantz Marina. "Synthèse de nouvelles hydrazones dérivées d'hydrazines disubstituées en position 1 : étude de leurs propriétés antibactériennes, de leur cytotoxicité sur deux espèces d'algues et de leur toxicité sur les alevins de truites." Paris 7, 1985. http://www.theses.fr/1985PA07F059.
Full textVogt, Kirkland W. "Nitridation reactions with hydrazine." Diss., Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/10032.
Full textREIS, RONALD DA SILVA. "TREATEMENT WASTEWATER EFFLUENTS CONTAINING HYDRAZINE." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2003. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=5112@1.
Full textIn Brazil, the use of energy produced by power plant generators is in expansion. Power plants use large quantities of water and chemical products that after use end up in effluents. Hydrazine is used in water systems for corrosion control, because of its excelents oxygen scavenging capacity. The present work was conducted to study the treatment of effluents containing hydrazine, under a technological approach, with the purpose of contributing to a systematic of effluents control in power stations. The process studied in this work was the decomposition of hydrazine with hydrogen peroxid in presence catalyst cooper íon. The experiments were made in laboratory scale, using synthetic effluents with initial concentration of hydrazine at the levels 10 and 100 mg/L, with initial pH values 7 and 9,5, temperature fixed at 220C, with addition of st oichiometric amounts of hydrogen peroxide, with and without addition of cooper ion catalyst. It was conclued that the process its viable for reduction of hydrazine concentration in effluents with pH 9,5, below to levels under legislation (1mg/L), using stoichiometric amounts of hydrogen peroxide together with 1 mg/L of cooper ion, in times less that 30 minutes and ambient temperature. Therefore this work showed that the process is adequate in satisfying the Brazilian legislation for discharge of effluents into water bodies according to regulation CONAMA 20, letter P-031/01 clause 2 article V, 09 February 2001.
Thompsett, David. "Hydrazine and carbazate complexes of chromium and manganese : their role in the catalytic decomposition of hydrazine." Thesis, University of Bath, 1987. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376340.
Full textMoody, K. N. "The vapour phase oxidation of hydrazine." Thesis, University of Leeds, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.354436.
Full textHuttenhower, Hillary Anne. "Development of new chemistry for a dual use hydrazine thruster, switchable room temperature ionic liquids, a study of silane grafting to polyethylene and its model compounds, synthesis of the novel hydrazine replacement fuel molecules 1,1-dimethyl-2-[2-azidoethyl]hydrazine and 1,1-dimethyl-2-[2-azidoethyl]hydrazone." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/41055.
Full textLindgren, Kristjon, and Dana Seng. "The Effects of Cyp2e1 on Hepatic Gene Expression in 129/Sv-Cyp2e1^tm1Gonz/J and 129S1/SvImJ Mice Exposed to Hydrazine." The University of Arizona, 2007. http://hdl.handle.net/10150/624424.
Full textObjectives: To characterize the difference in hepatic gene expression between Cyp2e1 +/+ and Cyp2e1 -/- mice after exposure to hydrazine in order to elucidate the functional pathway(s) for hydrazine-induced steatosis. Methods: The project was designed by Dr. Charlene McQueen and consisted of the following aims: (1) to characterize the hepatic pathology induced by hydrazine in CYP2E1 +/+ and -/- mice, (2) to evaluate hepatic gene expression profiles following exposure to hydrazine, and (3) to determine the expression of CYP2E1 and CYP4A14. The animal exposure and data collection have been completed and aim #2 is awaiting data analysis. Aim #2 consisted of treating CYP2E1 +/+ and CYP2E1 -/- mice to saline and hydrazine at doses of 100 mg/kg. Livers were collected at six and 24 hours and the mRNA was isolated with an Absolutely RNA RT-PCR Miniprep Kit. The transcriptome was determined using the Affymetrix GeneChip Expression Analysis System using total mouse genome GeneChips. The GeneChips were scanned using an Agilent GeneArray Scanner and the image was quantitated and archived awaiting data analysis. The data was collected by the SWEHSC Microarray Facility on June 20, 2005 was analyzed. The data analysis was completed by both Kristjon Lindgren and Dana Seng with the help and training from Dr. George Watts. The six sets of data from aim #2 was analyzed using Agilent's GeneSpring 7.3.1 software to characterize the two-fold differences in mice (n = 2 per group) hepatic gene expression. Genes of interest were identified as containing the keywords cyp, fatty, glutathione, hepat, lipid, liver, oxid, perox, steroid, and phosphatidylinositol in the Gene Ontology Biological Process, Cellular Component, or Molecular Function descriptions. Lastly, pathway mining of/for genes of interest was performed using Bioresource for array of genes (BioRag) available at www.biorag.org and maintained by the AzCC/SWEHSC Bioinformatics Facility. Results: The amount of information extracted from this research project is too immense to be described or summarized on this form. For more information, please obtain a copy of this research project from the University of Arizona College of Pharmacy or from the project co-authors Kristjon Lindgren (kristjon.lindgren@gmail.com) or Dana Seng (dana.seng@gmail.com). Conclusions: The effects of Cyp2e1 on hepatic gene expression in 129/Sv-Cyp2e1tm1Gonz/J and 129S1/SvImJ mice exposed to hydrazine was analyzed. Data showing that Cyp2e1 was protective against HD-induced hepatotoxicity was consistent with the proposed hypothesis. Hepatic gene expression results show that Cyp2e1 -/- mice have decreased expression of microsomal ω-oxidation genes (Cyp4a10 and Cyp4a14) compared to Cyp2e1 +/+ at 6h (both increased at 24h) and peroxisomal β–oxidation genes (Ehhadh) at 6h like Cyp2e1 +/+ (but increased at 24h only in Cyp2e1 -/-). Conversely, an increased expression of mitochondrial β-oxidation genes (Cpt1a) in both genotypes at 6 and 24h and cholesterol synthesis genes (Fdft1, Hmgcr, Hmgcs1, Idi, Lss, Mvk, Nsdhl, Sc4mol, and Sqle) in Cyp2e1 -/- at 24h was observed. These results support mechanisms by which ω-oxidation or PPARγ is protective or peroxisomal β- oxidation is damaging. Additional studies are needed to further eludidate the mechanisms of HD-induced steatosis.
Clavette, Christian. "Synthesis of Beta-Aminocarbonyl Compounds and Hydrazine Derivatives Using Amino- and Imino-Isocyanates." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32004.
Full textSamanta, Susnata. "Reversible carbon dioxide gels, synthesis and characterization of energetic ionic liquids, synthesis and characterization of tetrazole monomers and polymers, encapsulation of sodium azide for controlled release." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/22602.
Full textCommittee Chair: Prof. Charles L. Liotta; Committee Member: Prof. Arthur J. Ragauskas; Committee Member: Prof. Charles A. Eckert; Committee Member: Prof. John D. Muzzy; Committee Member: Prof. Rigiberto Hernandez.
Zadick, Anicet. "Pile à combustible alcaline directe à hydrazine-borane." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAM021/document.
Full textThe present PhD work focusses on the development of an original and innovative technology of direct liquid alkaline fuel cell (DLAFC) using hydrazine borane as a fuel for the anode. Thermodynamically, a direct hydrazine borane fuel cell (DHBFC) system can have an operating voltage value around 1.6 V when the most commercialized and mature proton membrane exchange fuel cell (PEMFC) technology can only reach 1.23 V (and in practice this value is even lower than 1 V). In principle, a direct alkaline fuel cell technology such as the DHBFC addresses most of the issues encountered in acidic PEMFC systems (such as the cost of the platinum-containing electrodes and their poor durability) and hydrazine borane is a relevant alternative to store chemically the hydrogen in the form of a white powder that is stable in alkaline solutions; this chemical hydrogen storage is easier, safer and more user-friendly than compressed H2 gas.This PhD work demonstrates that the HB electrooxidation reaction (HBOR) in alkaline medium is possible and efficient on noble metals such as palladium (cheaper than platinum) and more importantly on noble-free nickel-based materials. For those materials, the HBOR onset potential is measured below 0 vs. RHE, which enables to expect promising operating voltage if they are used as anode electrocatalysts in DHBFC systems. This solution allows to diminish the technology’s cost (both in terms of fuel storage and electrocatalyst materials) and could enable to rival industrially PEMFC systems, if the anode durability is demonstrated.On this prospect, whereas non-noble metals (such as nickel) can generally not be used as anode electrocatalysts in acidic PEMFC systems because of their instability, this work demonstrates that they are stable in alkaline environment. Surprisingly, “state-of-the-art” platinum (and palladium) electrocatalysts, generally used in PEMFC, are unstable in alkaline medium: indeed, platinum (and palladium) carbon-supported nanoparticles are highly degraded (and in lesser extent for palladium) in alkaline solution, after 150 potential cycles in a usual potential window; so, these “state-of-the-art” noble electrocatalysts are not suitable for real DHBFC system applications. Therefore, the nickel-based electrocatalysts (both active and stable) are found to be the most suitable electrocatalyst materials for the DHBFC anode.Finally, it is also demonstrated that the nature of the borane fuel is critical for a utilization in DALFC system; hydrazine borane is found to be the most promising fuel against ammonia borane (AB) or dimethyl amine borane (DMAB). The borane electrooxidation reaction (BH3OR), carried out on palladium electrocatalysts (despite its relative instability for real systems, palladium is a suitable noble and model electrocatalyst to get a better understanding of BH3OR mechanism), using these various fuels sheds light on the detrimental (poisoning) role of the counter-borane fragments of AB and DMAB (ammonia and dimethyl amine, respectively); on the contrary, the counter-borane fragment of HB (hydrazine) is found to have no detrimental effect on the BH3OR. Interestingly, the hydrazine moiety is completely electrooxidized on palladium, leading to 4 exchanged electrons in addition to the 6 exchanged electrons generated by the BH3OR.To conclude, this PhD work underlines the interest of hydrazine borane for the DHBFC systems, in particular for nomad applications, where the hydrogen storage can be a problem. HB is a relevant fuel to store chemically the hydrogen and to be valorized on noble-free materials, diminishing the overall system cost while ensuring a sufficient durability for the DHBFC anode
Roussi, Fanny. "Synthèse asymétrique d'hydrazines mono et bicycliques polyfonctionnalisées via de nouvelles méthodes d'alkylations et de cycloadditions 1,3-dipolaires." Paris 5, 1999. http://www.theses.fr/1999PA05P620.
Full textGhassemi, Hossein. "Synthesis and properties of novel polyimides utilizing hydrazine." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=28451.
Full textAll of the polymers show remarkably high glass transition temperatures, as high as 455$ sp circ$C. Their 5% weight loss by thermogravimetric analysis in an atmosphere of air or nitrogen are all above 440$ sp circ$C. Most of these polymers are highly fluorescent. Their emission spectra are in the visible region and show some evidence for an excited energy transfer and molecular aggregation.
Li, Qing Hua. "Second generation camphor sulfonyl hydrazine (CaSH II) organocatalysis." HKBU Institutional Repository, 2013. http://repository.hkbu.edu.hk/etd_ra/1525.
Full textLe, Duc Minh. "Nouvelle stratégie d’élaboration de la monométhylhydrazine via le procédé Raschig en utilisant la technologie des microréacteurs : synthèse de la chloramine dans des conditions quasi-stoechiométriques et isolement en une seule étape multifonctionnelle." Thesis, Lyon 1, 2012. http://www.theses.fr/2012LYO10335.
Full textThis work, conducted as part of a collaboration with the Safran-Heraklès group, aims at developing a new synthesis concept for the monomethylhydrazine (MMH), by process intensification using microreactor technology. The work was funded by the Rhône-Alpes region in the form of a doctoral fellowship TARGET 2008-2011. The first part of this research aims to study the stability of monochloramine solutions prepared in stoichiometric conditions. This synthesis was carried out continuously, for the first time ever, using microreactor technology. Optimal synthesis conditions as well as a set of security parameters have been established for a fast and secured transfer to industrial scale. The second part, also one of the main objectives of this work, is the extraction, under pressure, of all organic products (mostly MMH and monomethylamine) in the form of one condensed phase by demixing the crude reaction liquors. This phenomenon is related to the existence of a miscibility gap in the liquid ternary system H2O-MMA-NaOH. The optimization of the demixing step requires then the study of different solid-liquid-liquid phase diagrams involved. The last part deals with the chemical engineering aspect of the research. A kinetic modeling of the synthesis of MMH by the Raschig way was used in order to estimate the composition of the synthesis solution. These results and the application of phase diagrams allow the determination of optimal conditions for the isolation step and the establishment of process flow-sheets for the synthesis of MMH
Walton, Kim. "The metabolism and mutagenicity of the mushroom hydrazine, agaritine." Thesis, University of Surrey, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267410.
Full textChen, Lingyan. "CaSH (camphor sulfonyl hydrazine) and CSI (chiral sulfonimide) organocatalysis." HKBU Institutional Repository, 2010. http://repository.hkbu.edu.hk/etd_ra/1186.
Full textRichards, Victoria Elizabeth. "The role of acetylation in the hepatotoxicity of hydrazine." Diss., The University of Arizona, 2004. http://hdl.handle.net/10150/280532.
Full textShu, Huihua Chin Bryan Allen. "Applications of poly (3-hexylthiophene) thin film as a hydrazine-sensitive chemiresistor." Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Summer/Theses/SHU_HUIHUA_8.pdf.
Full textPeyrot, Laurent. "Nouvelle avancée dans le procédé Raschig : élaboration de chloramine haute teneur, extension à la synthèse d'une hydrazine à structure indolique : la N-amino-2-méthylindoline." Lyon 1, 1998. http://www.theses.fr/1998LYO10006.
Full textLahlaouti, Mohammed l'Hassane. "Contribution à l'étude des propriétés physiques de l'hydrazine et des mélanges hydrazine-eau." Lille 1, 1990. http://www.theses.fr/1990LIL10185.
Full textDabb, Serin Lloyd Chemistry Faculty of Science UNSW. "Hydrazine in late transition metal-mediated N-C bond formation." Publisher:University of New South Wales. Chemistry, 2008. http://handle.unsw.edu.au/1959.4/41428.
Full textNorooz, Oliaee Shirin. "Catalyst Development and the Structure-Dependent Properties for Hydrazine Decomposition." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1468618168.
Full textHe, Hao. "Organocatalysis : hydrazine and sulfonimide as new functionalities in asymmetric organocatalysis." HKBU Institutional Repository, 2009. http://repository.hkbu.edu.hk/etd_ra/1104.
Full textZerkout, Saïd. "Synthèse d'hydrazino peptides." Vandoeuvre-les-Nancy, INPL, 1994. http://www.theses.fr/1994INPL052N.
Full textPhillips, C. H. "The adsorption and autoxidation of hydrazine vapour on polymeric and metallic surfaces." Thesis, University of Leeds, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278352.
Full textWhite, Christopher George. "Structural determinants of substrate oxidation by horseradish peroxidase isoenzyme C." Thesis, University of Sussex, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390522.
Full textPinto, Maria-Fatima. "Nouvelles voies de synthèse d'hydrazines fonctionnalisées : application à la préparation d'isoniazide monomarqué à l'azote 15 et d'alpha-hydrazinoesters chiraux." Nancy 1, 2002. http://www.theses.fr/2002NAN10189.
Full textThis work aims at developing a new efficient synthetic route to N-functionalised hydrazine derivatives using N-aminophtalimide, N-acyl and N-alkyloxycarbonylaminophtalimides. The first part describes the synthesis of regioselective singly-labeled nitrogen 15 hydrazide, starting from N-aminophtalimide (15N). The direct application of this first study is the synthesis of two isotopic isomers of isoniazid (a front-line antituberculosis drug), which elucidate the activation of isoniazid by catalase-peroxydase from Mycobacterium tuberculosis. Moreover the reactivity of N-acyl and N-alkyloxycarbonylaminophtalimides which can be considered as hydrazines bearing three electron-withdrawing groups including two incorporated into the phtaloyl moiety, is developed in a second part. These compounds were used in phase transfert catalysis conditions and as acidic partners in the Mitsunobu reaction for the preparation of monoalkylhydrazines, monoalkylhydrazides and alkylcarbazates. In the third part , this current method was extented to include the preparation of protected chiral hydrazinoacid derivatives via the Mistunobu protocol. Finally the conformationel study and reactivity of N-aminophtalimide and its derivatives is reported
Hou, Wei-Jen. "Hydrazine-based solution-processing of copper chalcopyrite for thin-film photovoltaics." Diss., Restricted to subscribing institutions, 2009. http://proquest.umi.com/pqdweb?did=1998530831&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.
Full textBourke, G. C. "Studies on the reactions of hydroxylamine and hydrazine with nitric acid." Thesis, Swansea University, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636129.
Full textBollan, Hilary Roberta. "The detection of hydrazine and related materials by ion mobility spectrometry." Thesis, Sheffield Hallam University, 1998. http://shura.shu.ac.uk/19366/.
Full textBin, Sulayman Abdulhamid. "Novel Amine-Functionalized Phosphoryl Hydrazine Flame Retardants for Epoxy Resin Systems." University of Dayton / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=dayton154456772870177.
Full textOropeza, Cristina M. "An evaluation study of the effectiveness of using a reaction-based process for hydrazine waste remediation." Doctoral diss., University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4816.
Full textID: 030646205; System requirements: World Wide Web browser and PDF reader.; Mode of access: World Wide Web.; Thesis (Ph.D.)--University of Central Florida, 2011.; Includes bibliographical references (p. 144-146).
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Moury, Romain. "L'hydrazine borane et ses dérivés, nouveaux matériaux pour le stockage chimique de l'hydrogène." Thesis, Montpellier 2, 2013. http://www.theses.fr/2013MON20205/document.
Full textIn this manuscript, we present the study and characterization of three new materials for chemical hydrogen storage: i.e. hydrazine borane (N2H4BH3, HB with 15.3 wt % H), lithium and sodium hydrazinidoboranes (LiN2H3BH3, LiHB with 11.6 wt % H and NaN2H3BH3, NaHB with wt 8.8 % H). These materials belong to boranes' family, which have recently been seen as promising materials for chemical hydrogen storage. A typical example of such materials is ammoniaborane, which has a high theoretical hydrogen content (NH3BH3, AB with 19.6 wt % H) and starts it dehydrogenation at moderate temperature (122°C). However, the dehydrogenation kinetics of AB is slow. In addition, some gaseous impurities are detected; e.g. borazine has been often reported to form. In this context, derivatives of AB, i.e. amidoboranes, have been synthesized with the objective to improve the dehydrogenation properties of the parent AB. Lithium and sodium amidoboranes (LiNH2BH3 and NaNH2BH3) generates 10.9 and 7.5 wt % H (respectively) at 90 ° C without any induction period and no borazine formation. For our study, we have chosen to follow a similar strategy in order to destabilize HB by chemical modification. In the first chapter, we report the synthesis protocol of HB and its chemical, structural and thermal characterizations. The synthesis, which is a salt metathesis, is an optimization of the protocol established in 1961 by Goubeau and Ricker. We optimized it in terms of cost, yield (≈ 80%) and purity (≥ 99%). The chemical and structural characterizations have revealed the presence of a Hδ+••• Hδ- network conferring the solid state to the borane as well as its stability in room conditions. However, the network does not involve all of the HB molecules unlike in the case of AB. Thermal characterizations have confirmed this observation through a decreased onset temperature of about 60 °C and the absence of an induction period. No emission of borazine was besides recorded. However, we put forward the formation of N2H4 and NH3. By volumetric measurements, we demonstrated that HB is able to release 6.2 wt % H2 in 3 h at 110 ° C. Chapters II and III deal with the synthesis and characterization of lithium (Chapter II) and sodium (Chapter III) hydrazinidoboranes. We performed detailed chemical and structural characterizations that revealed an increase of the degree of freedom of the BH3 group for these materials compared to HB, but also the presence of the Hδ+ •••Hδ- network but it is less complex than in HB. The LiHB synthesis has put forward the formation of two polymorphs, here noted α- and β-LiHB. In our conditions, Na- and Li-HB have presented more attractive dehydrogenation properties compared to HB, with a total dehydrogenation and a net decrease in the emission of NH3 (without N2H4) when both materials are subjected to a temperature ramp. The emission of unwanted NH3 can be hindered for NaHB by adding an excess of NaH during the synthesis. The dehydrogenation kinetics is also improved. We recorded an almost complete dehydrogenation with 2.6 equiv. H2 in 1 h at 150 ° C for LiHB and with 2.5 equiv. H2 in 24 s at 110 ° C for NaHB. Note that NaHB shows an unconventional behavior upon isothermal decomposition at temperatures above 100 ° C since it releases substantially all of its hydrogen in few minutes with the very high rate of 4 L H2/min at 110 ° C. These materials have thus demonstrated their potential for chemical hydrogen storage
Salas-Padron, Alejandrina. "Synthèse de la tertiobutylhydrazine : détermination du modèle cinétique, faisabilité du procédé." Lyon 1, 1988. http://www.theses.fr/1988LYO10142.
Full textGuidice, Michel. "Monométhylhydrazine, élaboration par le procédé Raschig : équilibres solide liquide du système CH3NHNH2-H2O." Lyon 1, 1989. http://www.theses.fr/1989LYO10054.
Full textBauer, Richard M. "Determination of feline interleukin 2 characteristics in specific-pathogen-free and feline leukemia virus-infected cats and the effects of 1,1-dimethylhydrazine on interleukin 1 and 2 activities in the murine system /." The Ohio State University, 1987. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487330761218928.
Full textZIMMERMANN, DIANE. "Modulation de la synapse glutamatergique : conception et synthese d'analogues de molecules neuroactives ; applications cardio-vasculaires (doctorat : pharmacochimie)." Strasbourg 1, 1999. http://www.theses.fr/1999STR15008.
Full textCarre, Annie. "Hydrazino azapeptides : obtention de gels et essais d'organisation de donneurs substitués par ces pseudopeptides." Rennes 1, 1996. http://www.theses.fr/1996REN10198.
Full textEl, Widadi Toufik. "Etude des interactions moléculaires dans les mélanges monomethyl hydrazine liquides et solides." Lyon, INSA, 1992. http://www.theses.fr/1992ISAL0080.
Full textIn order to study molecular interaction in water / monomethyl hydrazine (MMH) mixtures RAMAN spectra of liquid mixture in the range 0 to 100 % by mole MMH have been recorded and analyse. The different features varying on the RAMAN spectra have been explained in terms of modifications on the MMH skeleton under solvating. Several RAMAN lines have been assigned to MMH, nH2O hydrate, confirming results recently presented in literature. A molecular model of MMH has been established and used to study the variations of the CNN angle. It shows that the CNN angle is open, with respect to the dimer, by solvating. It has been shown too that the interactions between water and MMH were of dipole-dipole and/or dipole-quadrupole type, and were very strong. Water/MMH solutions have been cooled down to temperature were they become solids (down to 150K). It has been observed that the concentrations of the chemical species present in the mixtures varied during the cooling down that they still varied even while the solutions were solid. It has been shown that two types of interactions were competing during the cooling down : (i) – short-range molecular associations, favouring the gathering of chain of MMH molecules ; (ii) – long range associations concerning important groups of MMH and water molecules. The short range associations occur even in the solid phase. Nevertheless, long range interactions hinder the formation of crystal and lead to a glassy state. A Calorimetric study performed using Differential Calorimetric Analysis (ACD) has confirmed the RAMAN results as well as the fact the solid phase was glass
Vongsutilers, Vorasit. "The effect of C8-arylguanine adducts on B/Z-DNA equilibrium implications in aryl hydrazine carcinogenesis /." Morgantown, W. Va. : [West Virginia University Libraries], 2009. http://hdl.handle.net/10450/10058.
Full textTitle from document title page. Document formatted into pages; contains xiv, 301 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 193-213).
Bradd, Kerry J. "Rhodium compounds and clusters containing N-donor ligands." Thesis, University of Liverpool, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366947.
Full textPalumbo, Valérie. "Phénomènes de nucléation et de croissance cristalline dans les milieux de viscosité élevée : application à la cristallisation des deux formes stable et métastable du monohydrate de monométhylhydrazine." Lyon 1, 1995. http://www.theses.fr/1995LYO10199.
Full textFleurentdidier, Thomas. "Étude théorique du mécanisme de la réaction d’Ing-Manske : Application à la synthèse stéréosélective du pyrazépate de méthyle." Université Louis Pasteur (Strasbourg) (1971-2008), 2007. https://publication-theses.unistra.fr/public/theses_doctorat/2007/FLEURENTDIDIER_Thomas_2007.pdf.
Full textThe Ing-Manske reaction is a well-known variant of the Gabriel synthesis reaction which is used to synthetize primary amines under mild conditions. Yet, its mechanism has never been theoretically studied. Only few intermediates have been experimentally isolated or characterised. Its use with methyl pyrazepate showed an unexpected diastereoselective behavior that we have tried to clarify. The mechanism has been studied at the DFT-B3LYP level. Transition states and reaction intermediates have been calculated for various possible reaction pathways. Solvation effects, either microsolvatation or bulk effects (via PCM method), have been taken into account. On this basis some rationalization for the observed diastereoselectivity is proposed
Parkin, Donald Pysden. "A critical appraisal of the clinical pharmacokinetics of isoniazid." Thesis, Link to the online version, 1996. http://hdl.handle.net/10019.1/1267.
Full textEl, Hajj Ahmad. "Nouveaux concepts d’élaboration de la pyrazolidine par la méthode Raschig et par voie indirecte, en transitant par la 1 et 2-pyrazoline, suivie d’une hydrogénation catalytique : synthèses et modélisations cinétiques, équilibres entre phases et schémas de procédés." Thesis, Lyon 1, 2011. http://www.theses.fr/2011LYO10354.
Full textThis work, conducted as part of a research agreement with the Company ISOCHEM, aims to develop a new synthesis of pyrazolidine by the raschig method and by indirect way via 1 and 2-pyrazoline followed by catalytic hydrogenation. This hydrazine is very important, because of its many applications in the pharmaceutical and cosmetic industries. This thesis was funded by the National Center for Scientific Research as part of a doctoral fellowship engineer / PED. The first part is devoted to the study of the direct Raschig process resulting from the action of sodium hypochlorite in an excess of amine. The definition of the process involved the determination of the kinetic and reaction mechanisms to determine yields, residence time and to simulate numerically the overall operations of synthesis. The extraction conditions were established by exploiting the peculiarities of the phase equilibria in order to developed the flow-sheet. The second part relates to the indirect way. It is based on the synthesis of the 1 pyrazoline by double dehydrohalogenation of N,N-dichloro-1,3-diaminopropane. The pyrazolidine is then obtained by catalytic hydrogenation of the azo group. A global model for developing the pyrazolidine was established which allowed us to determine the optimum conditions and to identify segments syntheses and extractions as well as various unit operations of the process and the mass and energy balances
Goutelle, Véronique. "Synthèse de la 2-hydroxyéthylhydrazine par voie chloramine et par alkylation de l'(hydrate d'hydrazine) : mécanistique, modélisation cinétique et optimisation." Lyon 1, 2006. http://www.theses.fr/2006LYO10273.
Full textThis work was carried out with ISOCHEM (SNPE company). It presents various access roads to the synthesis of hydroxyethylhydrazine. This molecule arouses today a great interest taking into account its applications in the field aerospace, Defense, pharmaceutical and cosmetics industry. - The 1st part is devoted to the Raschig way. A kinetic and mechanistic study of the reactions of formation and degradation made it possible to identify the products and to establish a model. The optimum conditions for synthesis were defined as well as an approach of the operations of extraction. - The 2nd part relates to the alkylation of hydrazine hydrate by chloroethanol with and without the presence of a strong base. The rates laws of the mono and dialkylation relating to each option were given. This work was supplemented by a calorimetric study of the enthalpy of solvation and reaction. A total modeling makes it possible to control the whole of the reactional entities (ethylene oxide…)
Amazzal, Aïssa. "Etude des associations moléculaires dans une famille de liquides fragiles : la monométhylhydrazine et ses hydrates." Lille 1, 1996. https://pepite-depot.univ-lille.fr/LIBRE/Th_Num/1996/50376-1996-123.pdf.
Full textBiddy, Christopher Lorian. "Development of a High Performance Micropropulsion System for CubeSats." DigitalCommons@CalPoly, 2009. https://digitalcommons.calpoly.edu/theses/150.
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