Excess molar enthalpies of (2,2,4-trimethylpentane, or 1-heptene, or 1-hexene, or toluene+methyl 1,1-dimethylethyl ether) and of (1-heptene, or 1-hexene, or toluene+1,1-dimethylpropyl ether) at the temperatures 298.15 K and 308.15 K

Excess molar enthalpies and volumes of (1-hexyne, or 1-heptyne, or 1-octyne + di-1-methylethyl ether, or 1,1-dimethylethyl methyl ether, or 1,1-dimethylpropyl methyl ether) at the temperature 298.15 K

“…(13,14) The Prigogine-Flory-Patterson (PFP) model was applied to (n-alkane, or unsaturated hydrocarbon, or branched hydrocarbon, or aromatic hydrocarbon + branched chain ether), (1,15) where endothermic and slighty exothermic excess molar enthalpies, and positive or negative excess molar volumes were observed. The PFP model, using Flory's equation of state with a free volume contribution, has been applied to the mixtures discussed here using the same procedure and formulae as previously published.…”

“…(1) In this work we have determined the excess molar enthalpies at T = 298.15 K for (a 1-alkyne + an ether) in order to compare the effect on H E m of 1-alkene and 1-alkyne interactions with an ether, and to investigate the effect on H E m of possible hydrogen bond interaction between the acidic proton of the 1-alkyne and the oxygen of an ether. The mixtures investigated were [xC k H 2k+1 C ≡ CH + (1 − x){CH 3 CH(CH 3 )} 2 O, or (1 − x)CH 3 C(CH 3 ) 2 OCH 3 , or (1 − x)CH 3 CH 2 C(CH 3 ) 2 OCH 3 ] for k = 4, or 5, or 6.…”

(Solid + liquid) equilibria of (nalkanes + ethyl 1,1-dimethylpropyl ether)

“…It was found previously (13,(29)(30)(31)(32)(33) that the inductive effect of the substituted methyl, or ethyl group on one side and the same branched chain on the other side of the oxygen atom results in a better packing effect for the ethyl group. Smaller excess molar enthalpies and volumes H E m and V E m values were observed for the ethyl group.…”

Excess molar volumes of (hydrocarbon + ethyl 1,1-dimethylpropyl ether) atT= (298.15 and 308.15) K

“…(1)(2)(3)(4) Prigogine-Flory-Patterson (PFP) theory has been applied to the mixtures tested in this work, as well, using the same procedure as before. (12) The interchange parameter H E m(calc) .…”

“…In recent publications, (1)(2)(3)(4) we presented excess thermodynamic properties for mixtures (hydrocarbon + branched chain ether). As an extension of these studies, we report here excess molar volumes, V E m at T = (298.15 and 308.15) K for {hexane, or cyclohexane, or benzene, or heptane, or 1-heptene, or 1-heptyne, or octane, or 2,2,4-trimethylpentane, or decane, or dodecane, or tetradecane, or hexadecane + ethyl 1,1-dimethylpropyl ether (ETAE)}.…”