Zobrazeno 1 - 10
of 73
pro vyhledávání: '"F. Duboudin"'
Publikováno v:
Solid State Ionics. :1200-1207
TeO 2 is used to make glasses with interesting optical and conductive properties. In the present study, the synthesis of TeO 2 has been attempted in a liquid medium. Two types of precursors have been used: tellurium chloride and tellurium isopropoxid
Publikováno v:
Journal of Non-Crystalline Solids. :569-573
TeO 2 was made by sol-gel processing from tellurium chloride and tellurium isopropoxide precursors. The isopropoxide synthesis of the alkoxide was achieved by reaction of sodium isopropoxide with TeCl 4 . TeO 2 powders have been obtained with both pr
Publikováno v:
Materials Science and Engineering: B. 5:431-435
Samples with a composition close to LiTaO 3 were prepared by solid state reactions from Li 2 CO 3 and Ta 2 O 5 powders and by a sol-gel method using alkoxides of lithium and tantalum. The successive steps of the LiTaO 3 preparation process were follo
Publikováno v:
Journal of Aerosol Science. 21:799-810
Spherical particles of silica or tantalum oxide were prepared by the hydrolysis of aerosols consisting of silicon tetrachloride or tantalum pentaethoxide, respectively, diluted in propanol-2. Silica particles so-obtained were spherical but agglomerat
Autor:
Joseph Vercauteren, A. Nuhrich, G. Devaux, Martine Varache-Lembège, F. Duboudin, Pierre Renard
Publikováno v:
Archiv der Pharmazie. 328(5)
Some new oximinoalkanoic (n = 2,3,4) esters and acids derived from methoxyphenylthienyl ketones have been synthesized and evaluated in vitro for their inhibitory effects on arachidonic acid-induced human platelet aggregation. Of the eighteen oximinoe
Autor:
M. Bourhis, Michel Goursolle, Philippe Picard, Jean-Michel Léger, Jean-Georges Duboudin, F. Duboudin
Publikováno v:
ChemInform. 21
Publikováno v:
Organic Mass Spectrometry. 25:337-338
Publikováno v:
Ferroelectrics. 81:313-316
Powders with compositions close to LiTaO3 have been prepared by a sol-gel method using alcoholates of Iithium and tantalum. The granulometry of these powders obtained allowed us to elaborate ceramics at temperatures lower than 1150°C. Comparative di
Publikováno v:
Journal of Organometallic Chemistry. 133:29-36
A mass spectral study of a series of silacyclanones with 9—13-membered rings revealed the existence of the ion C 2 H 7 OSi ( m/e 75) whose formation was interpreted as resulting from a transannular interaction between the carbonyl oxygen and silico
Publikováno v:
Tetrahedron. 43:2075-2088
A new, practical route to enoxysilanes is described from simple enolizable aldehydes or ketones, using the trimethylchlorosilane-sodium iodide—tertiary amine reagent in acetonitrile. From certain aldehydes, an onium intermediate has been isolated.