Density (rho), viscosity (eta), and speed of ultrasound (U) (2 MHz) of pure solvents (chloroform, THF, and 1,4-dioxane) and solutions of epoxy acrylate of 9,9'-bis(4-hydroxy phenyl) anthrone-10 (EAAN) have been investigated at 303, 308, and 313 K. Specific acoustical impedance (Z), isentropic compressibility (kappa(s)), intermolecular free path length (L(f)), classical absorption coefficient (alpha/f(2))(cl), and viscous relaxation time (tau) have been determined from rho, eta, and U data and are correlated with concentration. Z, (alpha/f(2))(cl), and tau increased with C and decreased with T, while kappa(s) and L(f) decreased with C and increased with T in the solvent systems studied. A fairly good to excellent correlation between a given parameter and concentration is observed in solvent systems studied. Linear increase or decrease of acoustical parameters with concentration and temperature indicated existence of strong molecular interactions. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 121: 1304-1310, 2011