U. Yahsi, INTERRELATIONSHIPS BETWEEN P-V-T AND FLOW BEHAVIOR OF LINEAR AND NONLINEAR HYDROCARBONS, Polymer engineering and science, 38(3), 1998, pp. 464-470
The aim of this work is to determine the branching effect on the flow
behavior of alkanes. For this purpose, the zero-shear viscosity, eta(0
), was analyzed in terms of the Simha-Somcynsky equation of state, SS-
EOS, using the hole fraction, h = h(P, T) computed from it. For the an
alysis, eta(0)-data of the linear and three-branch alkanes measured in
a wide range of temperature and pressure, were used. For the linear s
pecies, Utracki proposed a relation, viz. ln eta(0) = a(0)+a(1)/(h + a
(2)), where a(1)= 0.79 and a(2) = 0.07 are the universal parameters fo
r linear hydrocarbons and their mixtures. In this work, this relation
was found to be valid for the linear but not for the branched alkanes.