Materials Literature
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Abstract Polyäthylene, hergestellt unter Verwendung metallorganischer Mischkatalysatoren bei Normaldruck, wurden durch fraktionierte Fällung zerlegt und die Verteilungsfunktionen der Polymerisationsgrade aufgestellt. Dabei zeigte sich folgendes: Die Integralfunktionen aller untersuchter Polymerer sind einander ähnlich…
A. R. Ubbelohde, C. W. Bunn, S. E. Rogers and F. C. Frank, Trans. Faraday Soc., 1956, 52, 882 DOI: 10.1039/TF9565200882
Abstract In this paper stresses in an infinite slab due to a nucleus of thermoelastic strain situated at a point inside it have been found.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTWaste Pickle Liquor. Ferrous Sulfate-Sulfuric Acid-WaterK. A. Kobe and R. E. FredricksonCite this: Ind. Eng. Chem. Chem. Eng. Data Series 1956, 1, 1, 13–17Publication Date (Print):January 1, 1956Publication History Published online1 May 2002Published inissue 1 January 1956ht…
most vital part of anthozoan polyps. With their filaments, they are the organs of digestion, ab-
Abstract In part II A, a general expression is given for the calculation of the free energy of a solution containing 2 or more interacting poly‐electrolytes in a salt solution. From this expression, the conditions for thermodynamic equilibrium in 2 phase, j‐component systems are derived. In part II B these conditions…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Thermodynamics of the Liquid Solutions in the Triad Cu–Ag–Au. I. The Cu–Ag SystemRussell K. Edwards and James H. DowningCite this: J. Phys. Chem. 1956, 60, 1, 108–111Publication Date (Print):January 1, 1956Publication History Published online1 May 2002Published inissue 1…
The first page of this article is displayed as the abstract.
The reaction of hydrogen with uranium to produce uranium hydride was studied in the temperature range 96°–400°C at pressure levels of of mercury (where is system pressure and is the plateau dissociation pressure of the uranium hydride product). Reaction rates followed the linear law. At a given , the linear rate incre…
Eine Betrachtung des Auflösungsvermögens des Feldemissionsmikroskopes läßt den Betrieb mit Ionen an Stelle von Elektronen als vorteilhaft erscheinen. Einige Daten der Felddesorption und der Feldionenemission werden mitgeteilt und der Mechanismus dieser Effekte wird erläutert. Daraus ergibt sich eine Beziehung für das…
Abstract Measurements are described of the paramagnetic susceptibilities of Co 3 O 4 , ZnCo 2 O 4 , and mixed crystals of ZnAl 2 O 4 ‐ZnCo 2 O 4 and the results are given in a table of X ‐values and two plots of 1/ X against absolute temperature. To explain the very low value of the mean Bohr magneton number, found fo…
Abstract Preliminary studies revealed that exchangeable K levels in Iowa soils fluctuated in response to vapor pressure changes and air drying. This phenomenon was investigated in relation to (1) K nutrition of plants in the greenhouse and (2) the problem of predicting the relative K‐fertility status in a wide range o…
Abstract The mechanism of cold mastication of natural and synthetic rubbers, as proposed by Kauzmann and Eyring, and by Pike and Watson, in volves the mechanical rupture of the polymer chain yielding polymer radicals which are stabilized by interaction with radical‐acceptor molecules to give the degraded polymer. This…
The reflections from the surface of a dielectric lens may be cancelled by a quarter-wavelength layer of refractive index intermediate between that of air and the lens medium. The possibility of simulating a quarter-wave matching section by perturbing the boundary of the lens is described in this paper. Some of the con…
Abstract The effect of nine inhibitors on the 2,2′‐azobisisobutyronitrile initiated polymerization of methyl acrylate in methyl propionate solution has been studied kinetically by a dilatometric method. The rate constants obtained are compared with those found for these same compounds in methyl methacrylate polymeriza…
The temperature dependence of the susceptibility of the antiferromagnetic compound MnTe was measured over a range of temperature between liquid nitrogen temperature and 720°C. An abrupt change in slope and a maximum of the susceptibility curve were found at 37°C and at 55°C respectively. These results are compared wit…
P. C. Carman and L. H. Stein, Trans. Faraday Soc., 1956, 52, 619 DOI: 10.1039/TF9565200619
The first page of this article is displayed as the abstract.
The Kittel-Devonshire phenomenological treatment of antiferroelectricity is extended to the case of polarizations in three dimensions in a pseudo-cubic material. There are ten possible solutions of the proposed free energy equation, corresponding to non-polar, ferroelectric, antiferroelectric and ferrielectric states,…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Stability of the Rare Earth Complexes with N-Hydroxyethylethylenediaminetriacetic AcidF. H. Spedding, J. E. Powell, and E. J. WheelwrightCite this: J. Am. Chem. Soc. 1956, 78, 1, 34–37Publication Date (Print):January 1, 1956Publication History Published online1 May 2002P…