Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthetic strategies in the formation of iron-modified polyimide filmsJoseph J. Bergmeister and Larry T. TaylorCite this: Chem. Mater. 1992, 4, 3, 729–737Publication Date (Print):May 1, 1992Publication History Published online1 May 2002Published inissue 1 May 1992https://pub…
Summary This paper describes a field-scale sensitivity study of the effect of the presence of oil on foam performance in a steam-foam-drive process. The 2D field-scale simulation was based on a field pilot in the Karamay formation in Xin-Jiang, China. Numerical results showed that the detrimental effect of oil on the…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermal decomposition of isoxazole: experimental and modeling studyAssa Lifshitz and Dror WohlfeilerCite this: J. Phys. Chem. 1992, 96, 11, 4505–4515Publication Date (Print):May 1, 1992Publication History Published online1 May 2002Published inissue 1 May 1992https://pubs.acs…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSquaraine chemistry. Design, synthesis and xerographic properties of a highly sensitive unsymmetrical fluorinated squaraineKock Yee LawCite this: Chem. Mater. 1992, 4, 3, 605–611Publication Date (Print):May 1, 1992Publication History Published online1 May 2002Published iniss…
Site-selective spectroscopy of rare-earth-doped materials has proven to be a powerful method for investigating solid-state defect chemistry at the atomic level. In this paper, the spectral transitions of single-crystal and polycrystalline samples of ${\mathrm{SrTiO}}_{3}$:${\mathrm{Eu}}^{3+}$ are sorted by site-select…
Ferroelectric liquid crystals (FLCs) have great potential in the future development of high‐resolution displays. A key requirements for their application is an understanding of the relationship between the molecular structure of the liquid crystals and their spontaneous polarization ( P 8 ) which in turn influences th…
Lithium aluminate (LiAl02) is one of the probable candidates for tritium breeding material because of its potential to give a fair tritium breeding ratio, stability at high temperature and stability in atmosphere containing water vapor. Clarification of the adsorption performances of water on LiAl02 is important for o…
The Ornstein-Zernike equation is used to analyze adsorption at, and the forces between, solutes and walls in near-critical fluids. The density profile is shown to decay exponentially with the bulk correlation length. The forces between solutes and between walls are also exponentially long ranged with the bulk correlat…
Piezoelectric PZT ceramics with the addition of 1.3–13.2 vol% ZrO2 were prepared. It was found that the addition of up to 8 vol% ZrO2 leads to higher values of flexural strength as compared to pure PZT, whereas the electric properties of the composites decrease with ZrO2 addition. Both phenomena are explained on the b…
Abstract The Yb(III) and Lu(III) sandwich complexes of 2,3,9,10,16,17,23,24-octabutoxyphthalocyanine (H2obPc) were prepared and characterized. Those electrochemical properties in CH2Cl2 were studied by means of cyclic voltammetry and absorption spectra in 320–1600 nm region monitored during controlled-potential electr…
Rhombohedral-type boron nitride (rBN) has been studied to pressures of 61 GPa at room temperature in a diamond-anvil cell by in situ x-ray diffraction. Synchrotron radiation was employed as an x-ray source. A precursory structural change occurs at \ensuremath{\sim}5 GPa. A transition to the cubic zinc-blende form (cBN…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPyrolysis chemistry of poly(organosilazanes) to silicon ceramicsHelen N. Han, David A. Lindquist, John S. Haggerty, and Dietmar SeyferthCite this: Chem. Mater. 1992, 4, 3, 705–711Publication Date (Print):May 1, 1992Publication History Published online1 May 2002Published inis…
The technique of infrared emission spectroscopy (IRES) is reviewed and further examined in this study as a surface analysis tool. A system has been designed which allows simultaneous kinetic and in situ infrared emission analysis of catalyst surfaces. IRES spectra of several gas mixture/solid systems are obtained in o…
The zero-field splitting of ${\mathrm{S}}^{6}$-state ions is studied in the intermediate-field coupling scheme by taking the crystal-field and the electrostatic interactions as the unperturbed Hamiltonian and the spin-orbit interaction as a perturbation. This perturbation process shows a very good convergence and prov…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew organosols of copper(II) sulfide, cadmium sulfide, zinc sulfide, mercury(II) sulfide, nickel(II) sulfide and mixed metal sulfides in N,N-dimethylformamide and dimethyl sulfoxide. Preparation, characterization, and physical propertiesKohtaro Osakada, Atushi Taniguchi, Ets…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTwo new barium-copper-ethylene glycol complexes: synthesis and structure of BaCu(C2H6O2)n(C2H4O2)2 (n = 3, 6)Craig P. Love, Charlie C. Torardi, and Catherine J. PageCite this: Inorg. Chem. 1992, 31, 10, 1784–1788Publication Date (Print):May 1, 1992Publication History Publish…
We have examined effects of fluorine concentration on defect formation by \ensuremath{\gamma}-ray irradiation in low-OH synthetic silica glasses over the F concentration range 0--3 wt. %. Doping with 1 wt. % of fluorine eliminates effectively \ensuremath{\equiv}Si-Cl without causing formation of \ensuremath{\equiv}Si-…
The Frank elastic constants for a nematic liquid crystal have been calculated by computer simulations for a fluid of hard ellipsoids and by the Poniewierski-Stecki method for ellipsoids with and without an attractive square well. Required for the Poniewierski-Stecki method is the direct correlation function c(1,2) and…
A number of new disc-like pentaynes 1–4 with super-disc cores are presented. These new non-mesogenic electron donors doped with 2,4,7-trinitrofluorenone (5) form charge transfer complexes showing enantiotropic nematic and hexagonal columnar mesophases.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolid-state and solution dynamics of the reversible loss of hydrogen from the iridium nonclassical polyhydride complexes IrClH2(PR3)2(H2) (R = iso-Pr, Cy, tert-Bu)Mario Mediati, Glen N. Tachibana, and Craig M. JensenCite this: Inorg. Chem. 1992, 31, 10, 1827–1832Publication…