Electrical Anisotropy of Xerogels of Hydrophile Colloids Part I
- 1 June 1944
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 12 (6) , 244-248
- https://doi.org/10.1063/1.1723936
Abstract
A number of colloid materials—proteins, plastics, and the like—have been coated in sheet form and ``fibered'' internally by stretching to 100 percent or more elongation. Circular disks were cut from the fibered sheets, and their degree of orientation measured in an (alternating) electric field. Account is given of the relation of the orientation measured to field strength, thickness, humidity, and moisture content. It was observed that induced electrical anisotropy is not shown by all kinds of natural and synthetic colloids; thus it is not shown by organophile xerogels, but only by the hydrophile ones. With most of these the electrical response depends upon the relative humidity and the absorbed water content, but with polyvinyl alcohol the effect was independent of the absorbed water.Keywords
This publication has 6 references indexed in Scilit:
- The Structure of the “B” Modification of Starch from Film and Fiber Diffraction Diagrams1Journal of the American Chemical Society, 1944
- A Type of Light Valve for Television ReproductionProceedings of the IRE, 1943
- The Structure of Gelatin Sols and Gels. VI. The Absorption of Water Vapor and the Electrical Conductivity.The Journal of Physical Chemistry, 1940
- IV. The molecular structure and elastic properties of the biological cellsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1938
- The structure of xerogels of cellulose and derivativesTransactions of the Faraday Society, 1933
- Humidity Control by Means of Sulfuric Acid Solutions, with Critical Compilation of Vapor Pressure Data.Journal of Industrial & Engineering Chemistry, 1921