X. Mixing enthalpies of (methyl, or ethyl acrylate + an n-alkane)

Abstract

The excess molar enthalpies HEm have been measured for mixtures containing methyl, or ethyl acrylates with odd n-alkanes (from pentane to heptadecane) at the temperature 298.15 K. The HEm values are positive for all mixtures, increasing regularly with the alkane chain length and decreasing with the ester chain length. The behaviour of these mixtures is justified on the basis of molecular association in acrylates. The theoretical estimation of the excess enthalpies is also carried out using one group contribution model. © 1998 Academic Press.