Accession Number : ADA952722

Title :   A Molecular Theory for Viscoelastic Behavior of Amorphous Polymers.

Descriptive Note : Technical rept.,

Corporate Author : PRINCETON UNIV N J FRICK CHEMICAL LAB

Personal Author(s) : Tobolsky,A. V. ; Aklonis,J. J.

Report Date : FEB 1964

Pagination or Media Count : 13

Abstract : THE RELAXATION MODULUS FOR N.B.S. POLYISOBUTYLENE WAS INTERPRETED AS A SUM OF TWO ROUSE FUNCTIONS EACH ARISING FROM A DIFFERENT MOLECULAR MECHANISM. ONE IS ASSOCIATED WITH TORSIONAL VIBRATIONS AND INTERNAL ROTATION. THE OTHER IS ASSOCIATED WITH AN ENTANGLED NETWORK OF GAUSSIAN SEGMENTS. EACH ROUSE FUNCTION IS CHARACTERIZED BY THREE PARAMETERS, WHICH CAN BE OBTAINED FROM THE EXPERIMENTAL RELAXATION MODULUS. (AUTHOR-PL).

Descriptors :   *Polymers, *Viscoelasticity, Amorphous materials, Butyl rubber, Stress relaxation, Theory

Subject Categories : Physical Chemistry
      Polymer Chemistry
      Elastomers and Rubber

Distribution Statement : APPROVED FOR PUBLIC RELEASE