Accession Number : AD0618997

Title :   A THEORY OF THE THERMODYNAMIC BEHAVIOR OF NONELECTROLYTE SOLUTIONS. II. APPLICATION TO THE SYSTEM RUBBER-BENZENE,

Corporate Author : CASE INST OF TECH CLEVELAND OHIO

Personal Author(s) : Maron,Samuel H. ; Nakajima,Nobuyuki

Report Date : 13 FEB 1959

Pagination or Media Count : 13

Abstract : The thermodynamic theory of nonelectrolyte solutions proposed by Maron was applied to the experimental data of Gee and Treloar on solutions of rubber in benzene at 25C. The theory was found to be capable of representing these thermodynamic data very satisfactorily on the basis of a constant interaction parameter, mu, and on the basis of the dependence of the heat of mixing on the derivative of mu with respect to temperature rather than mu itself. Further, by assuming the heat of mixing to be temperature independent, an expression was set up for mu as a function of the volume fraction and the temperature. This equation reproduces the partial molal free energy values measured at 100C with an accuracy of better than 4%, and shows that at temperatures above and below 25C mu is concentration- as well as temperature-dependent. (Author)

Descriptors :   (*POLYMERS, SOLUTIONS(MIXTURES)), (*RUBBER, THERMODYNAMICS), ORGANIC SOLVENTS, AROMATIC COMPOUNDS, THEORY, ENTROPY, MIXTURES

Distribution Statement : APPROVED FOR PUBLIC RELEASE