Academic literature on the topic 'Réaction photochimiques'
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Journal articles on the topic "Réaction photochimiques"
Guitonneau, S., S. Momege, A. Schafmeier, P. O. Viac, and P. Meallier. "Étude comparative de la dégradation du bromoxynil et du bromoxynil heptanoate par photolyse UV et par oxydation chimique (H²O²/UV ; O³ ; Cl²)." Revue des sciences de l'eau 8, no. 2 (April 12, 2005): 201–16. http://dx.doi.org/10.7202/705219ar.
Full textBöeseken, J., W. D. Cohen, and S. L. Langedijk. "La Réaction des Cétones avec les Alcools sous l'Influence de la Lumière: II. L'explication des perturbations photochimiques par la théorie du filtre intérieur." Recueil des Travaux Chimiques des Pays-Bas 46, no. 6 (September 3, 2010): 383–96. http://dx.doi.org/10.1002/recl.19270460602.
Full textBernas, A., M. Bodard, and I. Rossi. "Réactions Photochimiques de Quelques Monomères Irradiés A L'État Solide." Bulletin des Sociétés Chimiques Belges 71, no. 11-12 (September 2, 2010): 859–68. http://dx.doi.org/10.1002/bscb.19620711141.
Full textMialocq, J. C. "« Réactions chimiques, photochimiques et électrochimiques en milieux organisés ». Table ronde." Journal de Chimie Physique 84 (1987): 1083–84. http://dx.doi.org/10.1051/jcp/1987841083.
Full textKellmann, Melle A. "Sur les Réactions Photochimiques de L'Acridine dans des Solvants Hydrogénés." Bulletin des Sociétés Chimiques Belges 71, no. 11-12 (September 2, 2010): 811–18. http://dx.doi.org/10.1002/bscb.19620711132.
Full textIvanoff, Melle N. "Sur la Réaction Photochimique des Composés Polyaromatiques Avec le Tétrachlorure de Carbone." Bulletin des Sociétés Chimiques Belges 71, no. 11-12 (September 2, 2010): 759–63. http://dx.doi.org/10.1002/bscb.19620711124.
Full textBalzani, V., A. Bertoluzza, and V. Carassiti. "Réactions Photochimiques D'Oxydo-Réduction de Composés de Coordination et Influence des Alcools." Bulletin des Sociétés Chimiques Belges 71, no. 11-12 (September 2, 2010): 821–30. http://dx.doi.org/10.1002/bscb.19620711134.
Full textZerguine, Riad. "Skin and the sun." Batna Journal of Medical Sciences (BJMS) 2, no. 1 (June 30, 2015): 24–29. http://dx.doi.org/10.48087/bjmsra.2015.2106.
Full textHAVAUX, Michel, and Robert LANNOYE. "Effets des basses températures positives sur les réactions photochimiques primaires de la photosynthèse du maïs (Zea mays L., cv. « LG 9 »)." Agronomie 5, no. 4 (1985): 331–37. http://dx.doi.org/10.1051/agro:19850406.
Full textDissertations / Theses on the topic "Réaction photochimiques"
Soules, Aurélien. "Apports des activités chimiques et photochimiques des alkyls azides à la synthèse macromoléculaire." Thesis, Montpellier, Ecole nationale supérieure de chimie, 2010. http://www.theses.fr/2010ENCM0001.
Full textThis work aims at using both chemical and photochemical activities of fluorinated telomers bearing azido end groups, to promote the synthesis of thermostable macromolecules and original photocrosslinked networks. In a first part, we have prepared and characterized a novel class of linear poly(alkyl aryl) ethers by the promotion of competitive “Click” reaction and Hay coupling. Then, the photolysis under UV irradiation of these fluorinated polymers was studied and used to generate photocrosslinked materials. The surface free energies of the resulting films were established using the Owens-Wendt model. The roughness and composition of the surfaces were investigated by profilometry, AFM and EDX analysis. Finally, the preparation under UV irradiation of original polymer networks was performed. The post-sulfonation of these materials allowed to prepare new proton exchange membranes for fuel cells application. The microstructures, physical and chemical properties of these electrolytes were investigated
Frey, Marie-Lucie. "Le vieillissement des huiles essentielles : principales réactions chimiques et conséquences sur quelques essences particulières et parfums." Strasbourg 1, 1988. http://www.theses.fr/1988STR10790.
Full textGöttle, Adrien. "Étude théorique de propriétés photophysiques et photochimiques de complexes de ruthénium." Phd thesis, Université Paul Sabatier - Toulouse III, 2013. http://tel.archives-ouvertes.fr/tel-00957277.
Full textTinel, Liselotte. "Des réactions photochimiques aux interfaces atmosphériques." Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10263/document.
Full textThe works presented in this thesis concern firstly the characterization of two new photosensitizers by spectroscopic methods. This way the kinetics of the oxidation reaction between the triplet state of the photosensitizers, imidazole-2-carboxaldehyde and 6-carboxypterin, and three halides have been determined by laser flash photolysis. Also, the reactivity of the singlet state of 6-carboxypterin with halides and four organic acids has been studied by static fluorimetry. These photosensitizers are relevant for the photochemistry at the surface of the ocean, but also at the surface of atmospheric particles. The reactions evidenced by these studies lead to the formation of very reactive radical species influencing the composition of the condensed and gas phase of the marine environment. This study then focalized on the analysis of the products formed at the organic coated air-water interface through photo-induced processes. Two different organics were used as surfactants, octanol and nonanoic acid. In the presence of a photosensitizer and UVA light, the changes in the gas phase were monitored online by SRI-ToF-MS and in the condensed bulk phase by UPLC-(ESI)-HRMS offline analysis. These analysis showed that photochemical reactions at the interface lead to the formation of functionalized and unsaturated compounds initiated by a hydrogen abstraction on the organic surfactant. These products, observed in the condensed and gas phase have the potential to contribute to the formation of aerosols. Surprisingly, some of these products were also observed in the two phases without the presence of a photosensitizer, bringing into evidence a photochemistry of nonanoic acid at the air-water interface. Potential formation mechanisms of the products and environmental consequences are discussed
Gomez, fernandez Mario Andres. "Synthèse des composés biologiquement actifs en utilisant des réactions photochimiques." Thesis, Reims, 2018. http://www.theses.fr/2018REIMS009.
Full textIn life sciences, there is a continuos research for new biological active molecules, this is true for both pharmaceultical industry and agrochemical industry. In the last years regulations have become more and more severe. In recent years, the technology for the test of new chemical compounds in industry has considerably evolved. Nowdays it is possible to test a vast number of compounds for the screening of biological activity in a short time. This means that industry is searching for new methodologies that allow the obtention of diverse chemical structures that can present biological activity.In this context, chemical industry, in particular, pharmaceutical and agrochemical industry are interested in the use of photochemical reactions in organic synthesis. Photochemical reactions allow the obtention of a variety of complex structures that are not easily obtained by classical methods. This chemical space has not been completly explored in the search of biological active compounds.In the works presented in this PhD research we first explored the [2+2] photocycloadtion of a carbonyl compound to an olefin, the called Paternò-Büchi reaction. We succesfully applied this reaction to obtain oxetanes wich posses agro-like substituents and key sites for further functionalization, a requirement demanded in industry. We also explored the use of fluorinated olefins in this photoreaction. The results are very promising: we discovered a new family of stable fluorinated oxetanes. These compounds can be used cas molecular scaffolds for the obtention of biological active compounds. At the same time, we discovered a new photochemical reactivity: a Photo-Wittig like reaction. This new reactivity depends on the substitution pattern of the carbonyl group. We hypothesize that the new reactivity depends on the excited state of the carbonyl compound
Dargham, Khadigé. "Valorisation chimique et photochimique de l'acide isocyanurique." Toulouse, INPT, 1988. http://www.theses.fr/1988INPT008G.
Full textLaurent, Michel. "Comportement de molécules chromophores dans des mésophases nématiques lyotropes et application à l'analyse d'une réaction photochimique." Paris 11, 1987. http://www.theses.fr/1987PA112005.
Full textSemenzin, Delphine. "Réactions "d'hydrophosphoration". Etude comparée de différentes méthodes d'activation." Toulouse 3, 1994. http://www.theses.fr/1994TOU30210.
Full textSakri, El-Bahri. "Etude cinétique de la polymérisation photochimique du méthacrylate de méthyle en présence d'agents complexant organochloroaluminiques." Paris 6, 1986. http://www.theses.fr/1986PA066140.
Full textMasse, François. "Cinétique de photolyse d’oxydes d’azote sous rayonnement UV." Mémoire, Université de Sherbrooke, 2016. http://hdl.handle.net/11143/9795.
Full textBook chapters on the topic "Réaction photochimiques"
"Chapitre 8 Initiation à la cinétique des processus photophysiques et photochimiques." In Cinétique et dynamique des réactions chimiques, 219–46. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-1812-9-010.
Full text"Chapitre 8 Initiation à la cinétique des processus photophysiques et photochimiques." In Cinétique et dynamique des réactions chimiques, 219–46. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-1812-9.c010.
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