Solvation enthalpy of selected glymes in the mixtures of N,N-dimethylformamide with propan-1-ol or methanol at 298.15 K. The solvent contribution to the solvation enthalpy of glymes

• Published in: Journal of molecular liquids 2020-09, Vol.314, p.113733, Article 113733
• Main Authors: Jóźwiak, Małgorzata, Łudzik, Katarzyna, Cokot, Maria, Jóźwiak, Andrzej, Kłys, Arkadiusz
• Format: Article
• Language: English
• Subjects: Enthalpy of solvation; Glymes; N,N-dimethylforamide+methanol mixtures; N,N-dimethylforamide+propan-1-ol mixtures; Solvent contribution to the solvation enthalpy
• ISSN: 0167-7322; 1873-3166
• DOI: 10.1016/j.molliq.2020.113733

The enthalpies of solution of monoglyme, diglyme, triglyme, tetraglyme, pentaglyme and hexaglyme in N,N-dimethylforamide+propan-1-ol mixtures have been measured at 298.15 K. The preferential solvation process of glymes molecules in the mixtures of N,N-dimethylformamide with methanol or propan-1-ol has been discussed. Then the contribution of DMF, PrOH, and MeOH to the solvation enthalpy of group (–CH2– and –O–) of glymes has been calculated. On the basis of the obtained data, the effect of the structural and energetic properties of the N,N-dimethylforamide+propan-1-ol mixtures on the solution enthalpy of glymes in this mixtures has been analyzed. •Enthalpies of solution of linear polyethers in DMF + PrOH were measured.•Enthalpies of solvation of linear polyethers in DMF, PrOH, MeOH and W were analyzed.•The model of preferential solvation of linear polyethers was used for analysis.•The effect of structural and energetic properties of mixed solvents on the standard solution enthalpy of glymes was analyzed.•The contribution of solvent to the enthalpy of solvation of glymes has been calculated.