Materials Literature
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Anhydrous citric acid and sodium bicarbonate were granulated with ethanol in an extruder. The influence of the following process variables on intragranular porosity and liquid saturation was investigated: powder flow rate, ethanol concentration, screw speed, die plate and screw configuration.Granule porosity was signi…
The X-ray crystal structure of NH4[Ni{S2C2(CN)2}2]·H2O has revealed that the planar [Ni{S2C2(CN)2}2]– anions form an eclipsed equidistant stack structure with a repeat distance of 3.918(8)Å. At 98 K the repeat distance in the stack direction is double that at room temperature indicating that the anions are now associa…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOxidative additions and luminescence involving iridium-gold-iridium chains formed by binding of gold(I) to the metallamacrocycle Ir2Cl2(CO)2[.mu.-Ph2PCH2As(Ph)CH2PPh2]2Alan L. Balch, Jeffrey K. Nagle, Douglas E. Oram, and Philip E. ReedyCite this: J. Am. Chem. Soc. 1988, 110…
Abstract The block copolymer poly(ethylene succinate)‐b‐poly(ethylene glycol) gave fibres that degrade rapidly and no tensile strength remained after 10 days of degradation, whereas fibres of the block copolymer poly(ethylene succinate)‐b‐poly(tetramethylene glycol) degraded more slowly and the tensile strength was lo…
ЗОННЫЙ МЕТАМАГНЕТИЗМ Р. 3. Левитин, А. С. МаркосянСОДЕРЖАНИЕ 1. Введение . . . . . . . . .
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTActive oxygen on Group VIII metals: activation of formic acid and formaldehyde on Pd(100)Scott W. Jorgensen and Robert J. MadixCite this: J. Am. Chem. Soc. 1988, 110, 2, 397–400Publication Date (Print):January 1, 1988Publication History Published online1 May 2002Published in…
ADVERTISEMENT RETURN TO ISSUEPREVArticleAutoxidation of 2,6-di-tert-butylphenol in water catalyzed by cobalt phthalocyaninetetrasulfonate bound to polymer colloidsHayrettin Turk and Warren T. FordCite this: J. Org. Chem. 1988, 53, 2, 460–462Publication Date (Print):January 1, 1988Publication History Published online1…
The preparation and properties of two new mixed valence Mn complexes, Mn2(biphen)2(biphenH)(bpy)2(3) and Mn2O2Cl2(OAc)(bpy)2(2)(bpy = 2,2′-bipyridine, biphenH2= 2,2′-biphenol) are reported; complex (3) has a rare S= 9/2 ground state confirmed by magnetization studies.
The distribution of {110}〈001〉 oriented grains in the primary recrystallized 3% Si–Fe alloy processed by the one-stage cold rolling method were investigated by SEM-ECC-ECP technique and the X-ray diffraction method. The main findings were in the following:(1) {110}〈001〉 oriented grains present below 30 μm from the sur…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotodynamics of nickel-porphyrins in noncoordinating solvents: characterization of d-d excited states using transient Raman spectroscopyE. W. Findsen, J. A. Shelnutt, and M. R. OndriasCite this: J. Phys. Chem. 1988, 92, 2, 307–314Publication Date (Print):January 1, 1988Publ…
In this paper, we investigated the newly found order-disorder ferroelectrics PbHPO4 along with its deuterated analogue PbDPO4. Because the major contribution of the spontaneous polarization is the dipoles forming by the proton (or deuteron) ordering, not the displacements of heavy atoms as in the case of KDP-type crys…
Abstract Strain‐induced crystallization of poly(ether ether ketone) (PEEK) was studied by the use of a parallel plate rheometer. The experimental variables included preheating time, crystallization temperature, and shear rate. The crystallization kinetics were characterized by means of an induction time defined as the…
To understand electron-caused discharges along insulating solid surfaces on spacecraft as well as in solids, Kerr electro-optic field mapping measurements have been performed in electron-beam-irradiated polymethylmethacrylate. The accumulated trapped charge results in large self-electric fields of the order of 1 to 3.…
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
The interface-reaction controlled diffusion creep in fine-grained Al2O3 polycrystals was affected by the dispersion state of ZrO2 particles. The ZrO2 particles at grain boundaries reduced the creep rate and increased the activation energy for creep. The stress exponents were two for both pure Al2O3 and ZrO2-containing…
Synthese des etudes cristallographiques realisees sur les composes d'addition 1:1 de l'hexafluorobenzene avec des hydrocarbures et des amines aromatiques. Dans tous les composes etudies, les molecules associees sont empilees alternativement en des colonnes infinies. Beaucoup de ces composes ont des structures cristall…
An attempt at reviewing the present knowledge of dislocation intrinsic mobility in single phase chemically stable crystals is made. Metals as well as non-metals are considered. It is shown that plasticity of materials is in general dominated by dislocation core effects.
The X-ray crystal structure of (InOPri)5(µ2-OPri)4(µ3-OPri)4(µ5-O) reveals a square-pyramidal arrangement of indium atoms about a central oxygen; five of the alkoxo groups are terminal, four are µ2 about the basal metals, and four are µ3 about the triangular faces of the pyramid; the geometry about each metal is highl…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMultilayer activity and implications of hydrogen peroxide in the catalytic reduction of dioxygen by a dicobalt cofacial bis(porphyrin) (Co2FTF4)James P. Collman, Neil H. Hendricks, Charles R. Leidner, Emmanuel Ngameni, and Maurice L'HerCite this: Inorg. Chem. 1988, 27, 2, 38…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRoom temperature photoassisted formation of hydrogen-molybdenum bronzes with an alcohol as a hydrogen sourcePierre Pichat, Hoang Van Can, and Can Hoang VanCite this: J. Phys. Chem. 1988, 92, 2, 467–470Publication Date (Print):January 1, 1988Publication History Published onli…