Materials Literature
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Cristallisation dans Icmm ou Icm2 avec affinement respectivement jusqu'a 0,109 et 0,058. Calcination a 873 K puis deshydratation a 573 K. Pour la structure Icmm, aucun ordre entre atomes P et Al. Pour la structure Icm2, alternance entre atomes, Al et P aux nœuds des tetraedres. Existence de composes non cristallins co…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCompressional modulus of swollen polyacrylamide networksErik Geissler, Anne Marie Hecht, Ferenc Horkay, and Miklos ZrinyiCite this: Macromolecules 1988, 21, 8, 2594–2599Publication Date (Print):August 1, 1988Publication History Published online1 May 2002Published inissue 1 A…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEnzymic regioselectivity in the hydroxylation of cholesterol catalyzed by a membrane-spanning metalloporphyrinJohn T. Groves and Ronny NeumannCite this: J. Org. Chem. 1988, 53, 16, 3891–3893Publication Date (Print):August 1, 1988Publication History Published online1 May 2002…
Yttria-stabilized zirconia (YSZ) films have been grown on Si(100) substrates heated at 800°C by vacuum evaporation. X-ray diffraction and reflection high-energy electron diffraction observations reveal the heteroepitaxial growth of cubic YSZ (200) films on Si(100) substrates. The reflection high-energy electron diffra…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFormation of high melting crystal in a thermotropic aromatic copolyesterY. G. Lin and H. H. WinterCite this: Macromolecules 1988, 21, 8, 2439–2443Publication Date (Print):August 1, 1988Publication History Published online1 May 2002Published inissue 1 August 1988https://pubs.…
The initial stage of oxidation of anodized porous silicon (PS) at low temperature (\lesssim208°C) has been investigated using a conventional infrared (IR) spectroscopy technique. After the oxidation in air, four extra IR absorption peaks appeared in the Si-H stretching band (2000∼2300 cm -1 ). The origins of these pea…
We have previously described and characterized a nuclear protein at 40 kDa/pI 5 termed "numatrin" which is tightly bound to the nuclear matrix. We demonstrated that a rapid increase in the synthesis of numatrin at early G1 phase is closely correlated with receptor-mediated induction of cellular proliferation by variou…
Lead zirconate titanate [Pb(Zr,Ti)O3 or PZT] thin films have been grown by sputtering a multi-element metal target in oxygen using dc planar magnetron sputtering. Growth parameters and annealing conditions have been optimized. The kinetics of reactive sputtering and the implications of sputtering parameters on film co…
Abstract The phase behaviour of the title compounds was studied at high pressures using Raman spectroscopy. The isostructural materials KSCN and RbSCN show two phase changes (12.5 and 45.5 kbar; 10.5 and 37.5 kbar, respectively) which appear to be second order in type. Structures and transition mechanisms are proposed…
Heterojunction solar cells were prepared by magnetron sputtering of n-ZnO onto p-CdSiAs2 single crystals. These crystals were grown by chemical vapor-phase transport and have a resistivity of 2 Ω cm, a Hall mobility of 300 cm2/V s, and a net carrier density of 1016 cm−3 at room temperature. The heterojunctions exhibit…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermal decomposition of aromatics substituted by a long aliphatic chainFrancis Billaud, Pierre Chaverot, Maurice Berthelin, and Edouard FreundCite this: Ind. Eng. Chem. Res. 1988, 27, 8, 1529–1536Publication Date (Print):August 1, 1988Publication History Published online1 M…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStatistics of free-radical polymerizations revisited using a fragment approach. 2. Polyfunctional monomersRoberto J. J. Williams and Claudia I. ValloCite this: Macromolecules 1988, 21, 8, 2571–2575Publication Date (Print):August 1, 1988Publication History Published online1 M…
Measurements of 1 H nmr, differential thermal analysis, and differential scanning calorimetry have revealed that solid pentylammonium chloride, cooled rapidly from room temperature, forms a mixture of the stable and metastable low-temperature phases below the phase transition temperature, T tr (238 K). The sample anne…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTModeling diffusion and reaction in epoxy-amine linear polymerization kineticsDonald F. Rohr and Michael T. KleinCite this: Ind. Eng. Chem. Res. 1988, 27, 8, 1361–1366Publication Date (Print):August 1, 1988Publication History Published online1 May 2002Published inissue 1 Augu…
Abstract The following MX · MgX 2 · 6H 2 O compounds (double salt hexahydrates) were synthesized by variation of the M + and X − ions: CsCl · MgCl 2 · 6 H 2 O, Li(H 2 O)Cl · MgCl 2 · 6H 2 O, NH 4 Br · MgBr 2 · 6 H 2 O, RbBr · MgBr 2 · 6 H 2 O, CsBr. MgBr 2 · 6 H 2 O, KI · MgI 2 · 6 H 2 O, NH 4 I. Mgl 2 · 6 H 2 O and R…
Abstract Epoxides from a variety of unsaturated fatty acids were prepared, and corrosion tests for these products as water‐based cutting fluid additives were performed. The triethanolamine salt of an epoxide of undecylenic acid showed very effective rust‐inhibiting properties in a water‐based cutting fluid.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOsmotic swelling of poly(vinyl acetate) gels at the .THETA. temperatureFerenc Horkay, Erik Geissler, Anne Marie Hecht, and Miklos ZrinyiCite this: Macromolecules 1988, 21, 8, 2589–2594Publication Date (Print):August 1, 1988Publication History Published online1 May 2002Publis…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMicrodomain characterization of styrene-imidazole copolymersR. C. Sutton, L. Thai, J. M. Hewitt, C. L. Voycheck, and J. S. TanCite this: Macromolecules 1988, 21, 8, 2432–2439Publication Date (Print):August 1, 1988Publication History Published online1 May 2002Published inissu…
Abstract The thermal decomposition of a fibrous talc was studied by transmission electron microscopy (TEM) and selected-area electron diffraction (SAD). Small changes in the lengths of a and b unit-cell parameters were noticeable at 500°C, but the talc laths did not change morphologically until 800°C. At this temperat…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA theoretical study of the interaction of acetylene with copper and silver monoionsJosefa Miralles-Sabater, Manuela Merchan, Ignacio Nebot-Gil, and Pedro M. Viruela-MartinCite this: J. Phys. Chem. 1988, 92, 17, 4853–4859Publication Date (Print):August 1, 1988Publication Hist…