Solubilities of cinnamic acid esters in ionic liquids

Panteli, EK; Voutsas, EK

dc.contributor.author	Panteli, EK	en
dc.contributor.author	Voutsas, EK	en
dc.date.accessioned	2014-03-01T01:31:56Z
dc.date.available	2014-03-01T01:31:56Z
dc.date.issued	2009	en
dc.identifier.issn	0021-9568	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19985
dc.subject.classification	Chemistry, Multidisciplinary	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	Alkyl chain lengths	en
dc.subject.other	Cinnamic acids	en
dc.subject.other	Experimental datum	en
dc.subject.other	Ferulate	en
dc.subject.other	Gibbs energies	en
dc.subject.other	Imidazolium cations	en
dc.subject.other	Imidazolium-based ionic liquids	en
dc.subject.other	Nrtl activity coefficient models	en
dc.subject.other	Positive values	en
dc.subject.other	Thermodynamic functions	en
dc.subject.other	Uniquac	en
dc.subject.other	Van't hoff equations	en
dc.subject.other	Acids	en
dc.subject.other	Alkylation	en
dc.subject.other	Esterification	en
dc.subject.other	Esters	en
dc.subject.other	Ionization of liquids	en
dc.subject.other	Negative ions	en
dc.subject.other	Positive ions	en
dc.subject.other	Solubility	en
dc.subject.other	Ionic liquids	en
dc.title	Solubilities of cinnamic acid esters in ionic liquids	en
heal.type	journalArticle	en
heal.identifier.primary	10.1021/je800596c	en
heal.identifier.secondary	http://dx.doi.org/10.1021/je800596c	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	The solubilities of three cinnamic acid esters, namely, methyl ferulate, methyl p-coumarate, and methyl sinapate, in eight imidazolium-based ionic liquids composed of the PF6- and BF4- anions have been measured at (30, 39, and 48) °C. Higher solubilities of the three esters were observed in the ionic liquids composed of the BF4- anion than those composed of the PF6- anion. Also, higher solubilities are observed in alkyl-substituted (on the imidazolium cation moiety) ILs than in polar-substituted ILs, whereas, as the alkyl chain length on the cation moiety increases, the solubility increases as well. Moreover, using the van't Hoff equations, the apparent Gibbs energy, enthalpy, and entropy of solution were calculated. Positive values of the three thermodynamic functions were found in all cases. Finally, successful correlations of the experimental data were achieved with the UNIQUAC and the NRTL activity coefficient models. © 2009 American Chemical Society.	en
heal.publisher	AMER CHEMICAL SOC	en
heal.journalName	Journal of Chemical and Engineering Data	en
dc.identifier.doi	10.1021/je800596c	en
dc.identifier.isi	ISI:000264197700023	en
dc.identifier.volume	54	en
dc.identifier.issue	3	en
dc.identifier.spage	812	en
dc.identifier.epage	818	en