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 (freely-rotating 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