Influence of the Molecular Structure on the Volumetric Properties and Viscosities of Dialkyl Adipates (Dimethyl, Diethyl, and Diisobutyl Adipates)

• Published in: Journal of chemical and engineering data Vol. 55; no. 9; pp. 3697 - 3703
• Main Authors: Comuñas, María J. P, Bazile, Jean-Patrick, Lugo, Luis, Baylaucq, Antoine, Fernández, Josefa, Boned, Christian
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 09-09-2010
• Subjects: Chemical Physics; Chemical thermodynamics; Chemistry; Elements, mineral and organic compounds; Exact sciences and technology; General and physical chemistry; Physics; Thermodynamic properties; Viscosity; Molecular structure; Isothermal compressibility; Diester; Property structure relationship; Thermodynamic properties; Density; Rheological properties; Elastic moduli; Linear dependence; Pressure and temperature; Thermo-physical property; Thermal expansivity; Volumetric properties Engineering controlled terms: Compressibility; Adipates; Viscosity data; Tait equation; Dimethyl adipate; Volumetric analysis Engineering main heading: Atmospheric pressure; Bulk modulus
• ISSN: 0021-9568; 1520-5134
• DOI: 10.1021/je100237h

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.