Materials Literature
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Abstract Literature data for the effect of mineral fillers on the mechanical properties of polyethylene at two temperatures, styrene–butadiene rubber, and natural rubber were examined. The data for modulus, tensile strength, elongation at yield, and ultimate elongation could be well represented by linear plots of the…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure and Bonding in a Ten-Coordinate Lanthanum(III) Chelate of Ethylenediaminetetraacetic Acid1M. D. Lind, Byungkook Lee, and J. L. HoardCite this: J. Am. Chem. Soc. 1965, 87, 7, 1611–1612Publication Date (Print):April 1, 1965Publication History Published online1 May 20…
The infrared spectra of bis(glycino) complexes of Pt II, Pd II, Cu II, and Ni II have been measured from 4000 to 250 cm−1. For cis-bis(glycino) Cu II monohydrate, the spectra have been obtained including its three deutero analogs. Normal coordinate analyses have been carried out on all these complexes using the 1:1 (m…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOn the Structure-Dependent Behavior of Ethylenediaminetetraacetato Complexes of the Rare Earth Ln3+ Ions1J. L. Hoard, Byungkook Lee, and M. D. LindCite this: J. Am. Chem. Soc. 1965, 87, 7, 1612–1613Publication Date (Print):April 1, 1965Publication History Published online1 M…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTVolume Changes as a Criterion for Site Binding of Counterions by Polyelectrolytes1Ulrich P. Strauss and Yuen Po LeungCite this: J. Am. Chem. Soc. 1965, 87, 7, 1476–1480Publication Date (Print):April 1, 1965Publication History Published online1 May 2002Published inissue 1 Apr…
The intermetallic compound TiNi has been observed to undergo a martensitic transformation preceded by a second-order diffusionless transformation. Electron metallographic and X-ray evidence is presented in support of this view. Crystal structure data are presented for the displacive transformation products. The possib…
Oxygen diffusion in fused silica was measured over the range 850° to 1250°C by means of heterogeneous isotope exchange. In this temperature range and at 1 atm oxygen pressure the diffusion coefficients can be represented by the relation: D = 2 × 10 −9 exp (‐29 kcal/ RT). The oxygen diffusion coefficients are almost di…
"Nuclear and Radiochemistry." Nuclear Science and Engineering, 21(4), pp. 584–585
Abstract Viscosity measurements and calculated rotary diffusion constants show that collagen undergoes photopolymerization when irradiated with ultraviolet light of 2537 A. Fibril formation at the same time is inhibited. The results are correlated with the aromatic amino acid content of the dangling peptides protrudin…
is given in Table IV.As already indicated, features such as a random continuous filament structure with low binder content, crimp hetween bonds, and high filament separation combine to give unique products.They result in some unasual performance characteris- tics and permit new combinations among properties such as te…
The influence of cell age, size, and shape and mode of colony formation on diatom sinking rates was investigated in 25 experiments with Thalassiosira cf. nana Lohmann, Thalassiosira rotula Meunier and Nitzschia seriata Cleve. The settling experiments were conducted in 45 ml of 32‰ seawater at 15C using a glass settlin…
Graphic solutions for a wide variety of problems in carbonate equilibrium can be obtained if one uses the total carbonate carbon and alkalinity as abscissa and ordinate. At any point on such a diagram the carbonate system is completely defined and the pH, carbon dioxide pressure, bicarbonate concentration, and carbona…
Abstract A mathematical method has been developed, together with a digital computer program for its evaluation, for the determination of possible conformations of a polypeptide chain for any given amino acid sequence. Allowed conformations were required to satisfy predetermined criteria regarding the locations of pote…
ADVERTISEMENT RETURN TO ISSUEPREVArticlePhototropy (or Photochromism)Richard Exelby and Roger GrinterCite this: Chem. Rev. 1965, 65, 2, 247–260Publication Date (Print):April 1, 1965Publication History Published online1 May 2002Published inissue 1 April 1965https://pubs.acs.org/doi/10.1021/cr60234a005https://doi.org/10…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Macromolecular Chemistry of Gelatin.Peter H. von HippelCite this: J. Am. Chem. Soc. 1965, 87, 8, 1824Publication Date (Print):April 1, 1965Publication History Published online1 May 2002Published inissue 1 April 1965https://pubs.acs.org/doi/10.1021/ja01086a059https://doi.…
A microscopic theory of ferroelectricity is developed in which the temperature dependence of the normal modes of vibration arises from the anharmonic interactions between those normal modes. The conditions for the stability of the crystal are discussed and detailed expressions given for the physical properties of both…
The oxidation‐reduction equilibria in molten glasses having a soda/silica ratio of 1/2 and containing small amounts of variable‐valence ions of the transition elements titanium, vanadium, iron, cobalt, and nickel, the post‐transition elements tin and antimony, and the rare‐earth element cerium were obtained by equilib…
A survey of the optical and E.P.R. absorption in a large number of diamonds revealed that most natural diamonds contain substitutional nitrogen exclusively in non-paramagnetic, platelet form. These diamonds are classified as Type I a. A small group of transparent natural diamonds contain dispersed, paramagnetic nitrog…
Abstract Aromatic diamines react with pyromellitic dianhydride in solvents such as dimethyl‐acetamide to form solutions of high molecular weight polyamic acids. These soluble polymers can be converted to insoluble aromatic polyimides. The aromatic polyimides exhibit zero strength temperatures above 700°C. and possess…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComplexes Derived from Strong Field Ligands. XIX. Magnetic Properties of Transition Metal Derivatives of 4,4',4",4'''-TetrasulfophthalocyanineJames H. Weber and Daryle H. BuschCite this: Inorg. Chem. 1965, 4, 4, 469–471Publication Date (Print):April 1, 1965Publication Histor…