Statistical associating fluid theory for chain molecules with attractive potentials of variable range
A Gil-Villegas, A Galindo, PJ Whitehead… - The Journal of …, 1997 - pubs.aip.org
A version of the statistical associating fluid theory (SAFT) is developed for chain molecules
of hard-core segments with attractive potentials of variable range (SAFT-VR). The different
contributions to the Helmholtz free energy are evaluated according to the Wertheim
perturbation theory. The monomer properties are obtained from a high-temperature
expansion up to second order, using a compact expression for the first-order perturbation
term (mean-attractive energy) a 1. Making use of the mean-value theorem, a 1 is given as …
of hard-core segments with attractive potentials of variable range (SAFT-VR). The different
contributions to the Helmholtz free energy are evaluated according to the Wertheim
perturbation theory. The monomer properties are obtained from a high-temperature
expansion up to second order, using a compact expression for the first-order perturbation
term (mean-attractive energy) a 1. Making use of the mean-value theorem, a 1 is given as …