Show simple item record

dc.contributor.authorHevia, Fernando .
dc.contributor.authorGonzález, Juan Antonio
dc.contributor.authorAlonso Tristán, Cristina 
dc.contributor.authorGarcía de la Fuente, Isaías .
dc.contributor.authorSanz, Luis Felipe .
dc.date.accessioned2017-03-29T11:26:27Z
dc.date.available2019-05-01T02:45:07Z
dc.date.issued2017-05
dc.identifier.urihttp://hdl.handle.net/10259/4395
dc.description.abstractInteractions and structure of alkanone, or alkanal or dialkyl carbonate + alkane mixtures, or of 2-alkanone + 2-alkanone, or of ketone + dialkyl carbonate systems have been investigated by means of a set of thermodynamic properties and by the application of the Flory model. The properties considered are excess molar quantities: enthalpies, HmE, volumes, VmE, or isobaric heat capacities, CpmE, and liquid-liquid equilibria. Experimental data show that alkane mixtures are characterized by rather strong dipolar interactions. In the case of systems containing ketones with the same number of C atoms and a given alkane, dipolar interactions become weaker in the sequence: aromatic > cyclic > linear. In addition, the mentioned interactions become also weaker in the order: dialkyl carbonate > linear alkanone > linear alkanal. This is an important result, as carbonates show lower effective dipole moments than the other compounds, and it suggests that the group size may be relevant when evaluating thermodynamic properties of liquid mixtures. Results on HmE from the Flory model show that orientational effects (i.e., non-random mixing) are rather similar for systems with linear, cyclic or aromatic ketones or alkanals and alkanes. In contrast, orientational effects become weaker in dialkyl carbonate + alkane mixtures. The behavior of 2-alkanone + 2-alkanone systems and of mixtures of longer 2-alkanones or cyclohexanone with dialkyl carbonate is close to random mixing. Larger orientational effects are encountered in solutions of carbonates and shorter 2-alkanones.en
dc.description.sponsorshipConsejería de Educación y Cultura of Junta de Castilla y León, under Project BU034U16.en
dc.format.mimetypeapplication/pdf
dc.language.isoenges
dc.publisherElsevieren
dc.relation.ispartofJournal of Molecular Liquids. 2017, V. 233, p. 517–527en
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectPolar compounden
dc.subjectStericen
dc.subjectCyclizationen
dc.subjectAromaticityen
dc.subjectFloryen
dc.subjectOrientational effectsen
dc.titleOrientational effects in alkanone, alkanal or dialkyl carbonate + alkane mixtures and in alkanone + alkanone or + dialkyl carbonate systemsen
dc.typeinfo:eu-repo/semantics/article
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.molliq.2017.03.014
dc.type.hasVersioninfo:eu-repo/semantics/acceptedVersionen


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record