Thermodynamic properties of polyoxyethyleneglycol dimethyl ether+n-alkane mixtures

Excess molar volumes VmE at 278.15, 288.15, 298.15 and 308.15 K and atmospheric pressure were obtained from density measurements with a vibrating-tube densimeter for the mixtures CH3O(CH2CH2O)mCH3 (m=2, diglyme; m=3, triglyme; m=4, tetraglyme)+n-dodecane. These results allowed us to calculate isobaric thermal expansivities α at 298.15 K. We also report excess molar isobaric heat capacities CpE at atmospheric pressure measured with a micro DSC II differential scanning calorimeter for the systems triglyme+n-heptane at 288.15, 298.15 and 308.15 K and triglyme+n-dodecane at 283.15, 288.15, 298.15 and 308.15 K.