Materials Literature
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Tetragonal ( t ) ZrO 2 precipitates in Mg‐, Ca‐, and Y‐partially‐stabilized ZrO 2 (Mg‐PSZ, Ca‐PSZ, Y‐PSZ) have different habit planes and different morphologies. These differences arise because of differences in lattice parameters of precipitate and cubic ( c ) ZrO 2 matrix in the three systems. The approximate {001}…
For a detailed pheno- and genotypic characterization of the genus Thermus, the following seven representative strains were analyzed: Three extremely thermophilic strains (optimal temperature for growth, 65 to 75°C), Thermus aquaticus DSM 625, “Thermus flavus” DSM 674, and “Thermus thermophilus” DSM 579; and four moder…
Abstract Factors that could explain the lower tensile properties of nonpolar soft-segment-based polyurethane block copolymers relative to those of conventional polyether or polyester polyurethanes have been examined. Many of the materials studied in the literature have suffered from the use of soft segments with poor…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLow-temperature carbon monoxide adsorption and state of molybdena supported on alumina, titania, ceria, and zirconia. An infrared spectroscopic investigationM. I. Zaki, B. Vielhaber, and H. KnoezingerCite this: J. Phys. Chem. 1986, 90, 14, 3176–3183Publication Date (Print):J…
Abstract Data compliations are an integral and vital part of the development of the measurement scheme for surface analysis. They have three main functions that will be considered in this survey: (i) the provision of numerical values for use in calculations of quantitative surface analysis, (ii) the provision of unbia…
A new, compact (approximately fist sized), efficient electron-spin analyzer is described. It is based on low-energy (150 eV) diffuse scattering from a high-Z target, for example, an evaporated polycrystalline Au film opaque to the incident electron beam. By collecting a large solid angle of scattered electrons, a figu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe second isomer of dichloro(2,2'-bipyridine)iron(II): syntheses and spectroscopic and magnetic characterizations of three related dichloro(.alpha.-diimine)iron(II) complexes containing five-coordinate, high-spin iron(II)Francis F. Charron Jr. and William Michael ReiffCite…
Crystal structure analyses of 1,3-dioxa-2,2-diphenyl-2-sila-5,6-benzocycloheptane (1), 2,9-disila-1,3,8,10-tetraoxa-2,2,9,9-tetraphenyl-5,6,12,13-dibenzocyclotetradecane (2), 2,10-disila-2,2,10,10-tetramethyl-1,3,9,11-tetraoxa-5,7,13,15-dibenzocyclohexadecane (3), 2,7-disila-2,2,7,7-tetramethyl-1,3,6,8-tetraoxa-4,5,9,…
The presence of hyaluronate in the capsular space of the cat muscle spindle was demonstrated using alcian blue staining at various pHs, the critical electrolyte concentration technique and hyaluronidase treatment. In spindles with intact capsules an extracellular marker, the dye Ruthenium Red, gained access to the cap…
Various properties of polar crystals, in particular the effect of solvent on their growth, are directly related to the absolute structure of the crystal. The absolute structures of polar crystals composed of achiral molecules or racenic mixtures were assigned by three independent methods involving growth and dissoluti…
13 6 (i) Types f carbon
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCoordination geometries and relative donor-acceptor abilities of CX and X2 (X = O, S, Se, Te) and CX2 and H2CX (X = O, S) complexed to Ru(CO)4. Theoretical study by the Hartree-Fock-Slater transition-state methodTom ZieglerCite this: Inorg. Chem. 1986, 25, 16, 2721–2727Publi…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermotropic liquid crystalline polymers with quasi-rigid chains. I. Cyclohexyl moietiesMaged A. OsmanCite this: Macromolecules 1986, 19, 7, 1824–1827Publication Date (Print):July 1, 1986Publication History Published online1 May 2002Published inissue 1 July 1986https://pubs.…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSilicon-29 NMR observation of an unprecedented rearrangement in tetraaryldisilenesHoward B. Yokelson, Jim. Maxka, David A. Siegel, and Robert. WestCite this: J. Am. Chem. Soc. 1986, 108, 14, 4239–4241Publication Date (Print):July 1, 1986Publication History Published online1…
It is shown, that in uniaxial ferroelectrics the angular dependence of the static susceptibility for the order parameter fluctuation is very sensitive to the value and the anisotropy of the background dielectric susceptibility.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSERS and SEM of roughened silver electrode surfaces formed by controlled oxidation-reduction in aqueous chloride mediaDavid D. Tuschel, Jeanne E. Pemberton, and Joseph E. CookCite this: Langmuir 1986, 2, 4, 380–388Publication Date (Print):July 1, 1986Publication History Publ…
Abstract The thermal degradation of polystyrene in the absence of oxygen is examined, at temperatures above or below 300°C. The decrease in degree of polymerisation occurring either with negligible volatilisation at lower temperatures, or with evolution of low molecular weight products at higher temperatures, is simul…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectroreductive alkylation of iron porphyrins. Iron(III), iron(II) and iron(I) alkyl complexes from the reaction of doubly reduced iron(II) porphyrins with alkyl halidesDoris Lexa, Jean Michel Saveant, and Dan Li WangCite this: Organometallics 1986, 5, 7, 1428–1434Publicati…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDeviation from the ideal octahedral field vs. alkyl distortion in d0 metal-alkyl complexes: a MO studyA. Demolliens, Y. Jean, and O. EisensteinCite this: Organometallics 1986, 5, 7, 1457–1464Publication Date (Print):July 1, 1986Publication History Published online1 May 2002P…
In a series of studies on the effects of finishes on textile wetting, the capillary spreading of a liquid drop in fabric was investigated by a photographic technique as a function of time, drop volume, and surface tension/viscosity ratio. The area covered by the spreading liquid was found to be expressed by an exponen…