Influence of the molecular structure on the volumetric properties and viscosities of dialkyl adipates (dimethyl, diethyl, and diisobutyl adipates)

M.J.P. Comunas (1) , Jean-Patrick Bazile (2) , L. Lugo (3) , Antoine Baylaucq (2, 4) , J. Fernandez (1) , Christian Boned (2)

1 Laboratorio de Propiedades Termofísicas
2 TEFC - Thermodynamique et Energétique des fluides complexes
3 Departamento de Física Aplicada
4 CSTJF - Centre scientifique et Technique Jean Feger

This paper reports new measurements of the density of dimethyl adipate (DMA) and diisobutyl adipate (DiBA) over 12 isotherms from (293.15 to 403.15) K and 15 isobars from (0.1 to 140) MPa. The density of diethyl adipate (DEA) in the same conditions has already been published in a previous work. Viscosity data for the three fluids are also presented from (283.15 to 373.15) K at 0.1 MPa. The influence of the size of the adipate chains on the thermophysical properties has been analyzed. The correlation of the densities against pressure and temperature with the Tammann-Tait equation were used to obtain the isothermal compressibility and the isobaric thermal expansivity. The linear dependence between the tangent bulk modulus at atmospheric pressure and the secant bulk modulus at 100 MPa recently proposed by Kiselev et al. is also used in this work to calculate the isothermal compressibility at atmospheric pressure.

Mots clés: Adipates; Bulk modulus; Dimethyl adipate; Isothermal compressibility; Linear dependence; Pressure and temperature; Tait equation; Thermal expansivity; Thermo-physical property; Viscosity data; Volumetric properties Engineering controlled terms: Compressibility; Elastic moduli; Thermodynamic properties; Viscosity; Volumetric analysis Engineering main heading: Atmospheric pressure

Domaines: Chimie-Physique [physics.chem-ph]

M.J.P. Comunas, Jean-Patrick Bazile, L. Lugo, Antoine Baylaucq, J. Fernandez, et al.. Influence of the molecular structure on the volumetric properties and viscosities of dialkyl adipates (dimethyl, diethyl, and diisobutyl adipates). Journal of Chemical and Engineering Data, 2010, 55 (9), pp.3697-3703. ⟨10.1021/je100237h⟩. ⟨hal-00682732⟩