Materials Literature
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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…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew low-temperature synthesis of transition-metal sulfidesMichael J. Martin, Guo Hua Qiang, and Donald M. SchleichCite this: Inorg. Chem. 1988, 27, 16, 2804–2808Publication Date (Print):August 1, 1988Publication History Published online1 May 2002Published inissue 1 August 19…
Abstract Nitridation of polycrystalline titanium was investigated in situ at about 550°C by angle‐resolved x‐ray photoelectron spectroscopy (XPS). The nitrogen pressure was varied from 10 −4 mbar to 1 mbar. The distribution of nitrogen in the titanium and the chemical bonding present were deduced from XPS measurements…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCoordination chemistry of new sulfur containing ligands. 28. Syntheses and characterization of two vanadium tris complexes of the 1,2-dithiolene 5,6-dihydro-1,4-dithiin-2,3-dithiolate. Crystal structure of [(C4H9)4N][V(DDDT)3]Jane Hanna Welch, Robert D. Bereman, and Phirtu S…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTExtended x-ray absorption fine structure study of molybdenum/alumina samples prepared by equilibrium adsorption of ammonium heptamolybdateC. T. J. Mensch, J. A. R. Van Veen, B. Van Wingerden, and M. P. Van DijkCite this: J. Phys. Chem. 1988, 92, 17, 4961–4964Publication Date…
Hardness was measured as a function of temperature (20° to 1000°C) for several Al 2 O 3 ceramics, including single‐crystal sapphire and polycrystalline aluminas containing different amounts of second phase. Hardness decreased steadily with increasing temperature for all materials tested, in accordance with a semiempir…
The behavior of a two-dimensional orientation field has been studied directly in space and time. In a freely suspended thin film of tilted smectic liquid crystal the local projection onto the film plane of the molecular orientation averaged through the film forms a two-dimensional (2D) vector field C^(x,y) with local…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRemarkably inert metal alkyl linkages in alkyl dioxo complexes of molybdenum and tungstenPeter Legzdins, Everett C. Phillips, Steven J. Rettig, Luis Sanchez, James Trotter, and Vivien C. YeeCite this: Organometallics 1988, 7, 8, 1877–1878Publication Date (Print):August 1, 19…
Methods are described for the analysis of electron micrographs of regular biological objects. Fourier-based processing of one-dimensionally ordered arrays is described by way of introduction, before analysing two-dimensional crystals in projection with the aim of enhancing signal:noise ratio and thus of feint features…