“…The Kaye-BKZ model includes the Rouse-Zimm model for dilute solu tions, the Lodge elastic liquid derived from a network theory, the Tanner Simmons network rupture model, and the Doi-Edwards model for poly mer melts derived from a "tube theory" for a melt made up of freely jointed bead-rod chains. Kaye (1992) recently proposed a modifi cation of the Kaye-BKZ model in which the potential function is given in terms of the principal stretches. Kaye (1992) recently proposed a modifi cation of the Kaye-BKZ model in which the potential function is given in terms of the principal stretches.…”