Materials Literature
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A review and an a nalys is of the t heor y of water repellency of textile fab ri cs have been made. The physicochemical basis underl ying the we ttability, or wa ter repe llency, of t reated fabrics is di sc ussed. A survey of the laborator y test methods for e valuating water repe lle ncy of tex til e fabri cs is pre…
Dans cet article, on montre la possibilité théorique d'existence d'un type nouveau de désintégration β. On étudie, en se plaçant toujours d'un point de vue entièrement théorique, les particularités qui caractériseraient le phénomène.
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In a non-stressed cubic crystal the axes of pairs of adjacent solute atoms are randomly orientated along the several permissible crystallographic directions. It is shown that in the presence of a stress the equilibrium orientation is no longer random, but that certain directions become preferred, and it is further sho…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolubilities of ammonium and potassium alums in water - Densities of the Saturated SolutionsDavid Schlain, John D. Prater, and S. F. RavitzCite this: Ind. Eng. Chem. 1947, 39, 1, 74–76Publication Date (Print):January 1, 1947Publication History Published online1 May 2002Publi…
The dehydration of butanediol-2,3 over activated Morden bentonite has been investigated. Below 350 °C., liquid products butanone-2, isobutyraldehyde, and the isobutyral of butanediol-2,3 were produced. Butanone-2 was obtained in 86% yield. At higher temperatures, 450° to 700 °C., gaseous decomposition occurred. Only s…
J. M. Robertson and J. G. White, J. Chem. Soc., 1947, 358 DOI: 10.1039/JR9470000358
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPEROXIDE-CATALYZED ADDITION OF TRICHLOROSILANE TO 1-OCTENEL. H. Sommer, E. W. Pietrusza, and F. C. WhitmoreCite this: J. Am. Chem. Soc. 1947, 69, 1, 188Publication Date (Print):January 1, 1947Publication History Published online1 May 2002Published inissue 1 January 1947https…
There exists a class of crystal structures which are derived from others by generalization. These are here designated derivative structures. A special case of derivative structure is the popular ``superstructure.'' The symmetry of a derivative structure is a subgroup of the symmetry of the basic structure. Here the te…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMolecular-weight Determination by Light Scattering.P. DebyeCite this: J. Phys. Chem. 1947, 51, 1, 18–32Publication Date (Print):January 1, 1947Publication History Published online1 May 2002Published inissue 1 January 1947https://doi.org/10.1021/j150451a002RIGHTS & PERMISSION…
The absorption of water and dehydration of these films is found to obey a diffusion equation by means of which a diffusivity may be defined. This is not a constant but depends on the water concentration in the foils. A rapid change in water content immediately after changing the ambient conditions suggests the presenc…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew Compounds. A New Acetylene Silver Nitrate ComplexJoseph Shaw and Elton FisherCite this: J. Am. Chem. Soc. 1946, 68, 12, 2745Publication Date (Print):December 1, 1946Publication History Published online7 November 2002Published inissue 1 December 1946https://pubs.acs.org/d…
(1946). 18—SOME MEASUREMENTS OF THE FRICTION OF WOOL AND MOHAIR. Journal of the Textile Institute Transactions: Vol. 37, No. 12, pp. T269-T280.
Measurements of change of electrical resistivity with magnetization and with tension are reported for iron-nickel alloys containing 40 to 100 percent nickel. When the magnetostriction is negative (81 to 100 percent nickel), tension ($\ensuremath{\sigma}$) decreases resistivity, and magnetic field ($H$) increases it. D…
A very thin layer of radioactive copper was electrolytically deposited on a copper blank. The surface was then oxidized in air at 1000°C for 18 minutes, giving an oxide layer with a thickness of 1.25×10−2 cm. After quenching, successive layers of the oxide were removed chemically, and the copper activity in each layer…
Abstract Polysulfide rubbers of various internal structures have been investigated by measurements of continuous and intermittent relaxation of stress and by creep under constant load at temperatures between 35° C and 120° C. Continuous stress relaxation measurements indicate that these rubbers obey approximately the…
The intrinsic viscosities of an extended series of linear methyl polysiloxane fluids, having dimethylsiloxane (Me2SiO) as the repeating unit, have been determined in toluene solution. These values have been correlated with their molecular weights, determined chemically and by osmotic pressure and light scattering meas…
It is shown that dipole arrays may be represented as vectors in a many-dimensional vector space. The classical dipole interaction energy is a quadratic form in the components of the dipole moments. Its calculation is reduced to the diagonalization of this form. The characteristic vectors are so called basic arrays. An…
The theory is developed of the domain structure of ferromagnetic bodies whose smallest dimension is comparable with the thickness of the Weiss domains as found in crystals of ordinary size. Calculations of the domain boundary, magnetic, and anisotropy energies of various domain configurations are given for thin films,…
Progress of Theoretical Physics Vol. 2 No. 1 (1947) pp. 6–24 On the Effect of the Field Reactions on the Interaction of Mesotrons and Nuclear Particles. III Shin-ichirô Tomonaga Progress of Theoretical Physics Vol. 2 No. 2 (1947) pp. 63–70 On the Effect of the Field Reactions on the Interaction of Mesotrons and Nuclea…