
Accession Number : AD0682206
Title : A NEW FUNCTION FOR DIPOLE ORIENTATION AND RUBBER ELASTICITY.
Descriptive Note : Technical rept.,
Corporate Author : PRINCETON UNIV N J FRICK CHEMICAL LAB
Personal Author(s) : Soos,Zoltan G. ; Tobolsky,Arthur V.
Report Date : JAN 1969
Pagination or Media Count : 15
Abstract : A new function for dipole orientation is derived to describe a collection of fixed, randomly oriented molecules with a dipole moment, achievable by an intramolecular motion such as inversion. This model should be applicable to tertiary amines in the glassy state or imbedded in a glassy matrix. The new function, called the Y function, is similar to the Langevin function at low fields. However at very high fields, the Y function predicts an average dipole moment rather than the value obtained from the Langevin function. The Y function has also been applied to obtain a new equation of state for rubber elasticity at high strains, in the same manner that had previously been achieved starting with the Langevin function (freelyrotating model). This new equation of state for rubber elasticity is superior to that based on the Langevin equation in that it predicts a finite rather than an infinite strain energy. (Author)
Descriptors : (*DIPOLE MOMENTS, FUNCTIONAL ANALYSIS), (*ELASTIC PROPERTIES, FUNCTIONAL ANALYSIS), FUNCTIONS(MATHEMATICS), AMINES, RUBBER, STRESSES, POLYMERS
Subject Categories : Physical Chemistry
Elastomers and Rubber
Distribution Statement : APPROVED FOR PUBLIC RELEASE