Equation of state for chain molecules: Continuous-space analog of Flory theory

Abstract
New, accurate equations of state for fluids of chain molecules are derived as generalizations of the well‐known Flory and Flory–Huggins lattice theories to continuous space. Comparison with the results of new Monte Carlo simulations of athermal chains (freely jointed hard disks and spheres), extending over a wide range of densities, reveals that the generalized Flory–Huggins equation of state provides an accurate prediction for the pressure.