Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMolecular weight distribution dependence of the viscoelastic properties of linear polymers: the coupling of reptation and tube-renewal effectsJ. P. Montfort, G. Marin, and P. MongeCite this: Macromolecules 1986, 19, 7, 1979–1988Publication Date (Print):July 1, 1986Publicatio…
Two new Lowicryl resins have been developed for embedding biological materials at temperatures down to 210 K (hydrophilic K11M) and to 190 K (hydrophobic HM23). They have similar properties to Lowicryl K4M and HM20. The new resins were first tested for low temperature applications by the 'progressive lowering of tempe…
Abstract Isotactic polypropylene has been shown to crystallize from the melt spherulitically at intermediate undercoolings (100–130°C) in the presence of a high amount (40 wt %) of chalk (calcium carbonate). Linear growth rate is not remarkably affected by the presence of a filler. Both nonisothermal and isothermal cr…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBand electronic structure of the molybdenum blue bronze A0.30MoO3 (A = K, Rb)M. H. Whangbo and L. F. SchneemeyerCite this: Inorg. Chem. 1986, 25, 14, 2424–2429Publication Date (Print):July 1, 1986Publication History Published online1 May 2002Published inissue 1 July 1986http…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and structure of metal complexes of triaza macrocycles with three pendant pyridylmethyl armsLise Christiansen, David N. Hendrickson, Hans Toftlund, Scott R. Wilson, and Chuan Liang XieCite this: Inorg. Chem. 1986, 25, 16, 2813–2818Publication Date (Print):July 1, 1…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBisphenol A polycarbonate/poly(iε-caprolactone) blends: melting point depression and reactivityJames M. Jonza and Roger S. PorterCite this: Macromolecules 1986, 19, 7, 1946–1951Publication Date (Print):July 1, 1986Publication History Published online1 May 2002Published iniss…
The structure of monoclinic ZrO 2 particles dispersed in MgO‐partially‐stabilized zirconia has been examined systematically using transmission electron microscopy and electron micro‐diffraction. In both particles transformed athermally and those transformed under stress, the product of the martensitic tetragonal to mo…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMagnetic exchange interactions in some novel .mu.-azido-bridged copper(II) dimers. Crystal structures of [L2Cu2(.mu.-N3)(N3)2](ClO4).cntdot.H2O, LCu(N3)2, [L2Cu2(.mu.-N3)2(ClO4)2], and L'Cu(N3)2 (L = N,N',N"-trimethyl-1,4,7-triazacyclononane and L' = 1,4,7-triazacyclononane)…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA new cryptophane forming unusually stable inclusion complexes with neutral guests in a lipophilic solventJosette. Canceill, Liliane. Lacombe, and Andre. ColletCite this: J. Am. Chem. Soc. 1986, 108, 14, 4230–4232Publication Date (Print):July 1, 1986Publication History Publi…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElastic modulus of polyethylene in the crystal chain direction as measured by x-ray diffractionMasaru Matsuo and Chie SawatariCite this: Macromolecules 1986, 19, 7, 2036–2040Publication Date (Print):July 1, 1986Publication History Published online1 May 2002Published inissue…
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…