Materials Literature
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Abstract The temperature‐dependence of specific volume, rigidity modulus, and mechanical losses of plasticized and unplasticized cellulose acetates in the temperature range −100 to +200°C. has been studied. Two cellulose acetates, a triacetate and a cellulose (2.2) acetate were used, these being plasticized with varyi…
Abstract Für ausgewählte, möglichst symmetrische Moleküle mit einer Carbonyl‐bzw. Thiocarbonylgruppe im Fünfring werden die Eigenschwingungen zugeordnet. Es wird weiterhin der Einfluß von Nachbaratomen und, durch Vergleich mit offenkettigen Verbindungen, die Wirkung der Ringspannung auf die CO‐bzw. CS‐Valenzschwingu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHigh Temperature Heat Contents of Calcium OrthosilicateJ. P. Coughlin and C. J. O'BrienCite this: J. Phys. Chem. 1957, 61, 6, 767–769Publication Date (Print):June 1, 1957Publication History Published online1 May 2002Published inissue 1 June 1957https://pubs.acs.org/doi/10.10…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPraseodymium Oxides. IV. A Study of the Region PrO1.83-PrO2.001C. L. Sieglaff and L. EyringCite this: J. Am. Chem. Soc. 1957, 79, 12, 3024–3026Publication Date (Print):June 1, 1957Publication History Published online1 May 2002Published inissue 1 June 1957https://pubs.acs.org…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCopper (II) and Nickel (II) N-(n-alkyl)salicylaldimine ChelatesROBERT G. CHARLESCite this: J. Org. Chem. 1957, 22, 6, 677–679Publication Date (Print):June 1, 1957Publication History Published online1 May 2002Published inissue 1 June 1957https://pubs.acs.org/doi/10.1021/jo013…
Examination of the thermal conductivity of fabrics in terms of the fiber conductance and fabric density shows that fabric insulation is determined by fiber arrangement as well as by fabric thicknes. Fiber arrangement is interpreted in terms of fibers lying parallel and perpendicular to the fabric surface, and it is sh…
Equations are given for the reflectances, transmittances, and phase changes by reflection and transmission of very thin absorbing films, i.e., films with a thickness d very small compared with the wavelength λ of the incident radiation. The similarities and differences between very thin homogeneous and inhomogeneous f…
The spontaneous saturation magnetostriction and the forced magnetostriction were measured on slowly cooled single crystals of the ferromagnetic aluminum-iron alloys in the composition range from 6 to 30 atomic percent aluminum. The value of the first constant of spontaneous saturation magnetostriction at 6 atomic perc…
The wave functions of the ground state and several lower excited states of O 2 and O 2 + are calculated non-empirically at R =2.3 a.u. by LCAO MO method, where all sixteen electrons are taken into consideration and Slater type 1 s , 2 s , and 2 p atomic orbitals are used. For the ground state of O 2 , various approxim…
It is shown that the value of the magnetic moment of manganese ferrite measured recently by Hastings and Corliss can be explained on the basis of their observations of cation distribution if the Mn in $A$ and $B$ sites is assumed to be ${\mathrm{Mn}}^{2+}$ and ${\mathrm{Mn}}^{3+}$, respectively. This possibility is di…
Fairly complete Raman spectra have been obtained of polyethylenes of different crystallinities (Marlex 50, hydrogenated Marlex 50, Marlex 20, and DYNH), Venezuela wax, n-C28H58, n-C36H74, and stearic acid. The infrared spectrum of Marlex 50 has been investigated with a Perkin-Elmer Model 112 spectrometer equipped with…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Mechanisms of Permanganate Oxidation. IV. Hydroxylation of Olefins and Related ReactionsKenneth B. Wiberg and Klaus A. SaegebarthCite this: J. Am. Chem. Soc. 1957, 79, 11, 2822–2824Publication Date (Print):June 1, 1957Publication History Published online1 May 2002Publish…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA CRYSTALLIZABLE ORGANOMETALLIC COMPLEX CONTAINING TITANIUM AND ALUMINUMGiulio Natta, Piero Pino, Giorgio Mazzanti, and Umberto GianniniCite this: J. Am. Chem. Soc. 1957, 79, 11, 2975–2976Publication Date (Print):June 1, 1957Publication History Published online1 May 2002Publ…
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