Abstract
This paper investigates the rheological properties of some o-sec-butyl-phenoxyacetic esters as a function of temperature, shear rate, and type of the polyol used to prepare the ester. The curves viscosity-temperature and viscosity-shear rate in loop tests at 20, 40, 60, 80oC were obtained and interpreted, and the activation energies of viscous flow and the creep curves were determined. Also, physical and phase changes were analyzed using differential scanning calorimetry (DSC) and correlations between the rheological and thermal behavior were established. Keywords: ester, rheology, DSC