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Volumetric properties and spectroscopic studies of pyridine or nicotine solutions in liquid polyethylene glycols

2011-05Journal article Restricted access
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dc.contributor.authorVisak, Zoran P.
dc.contributor.authorIlharco, Laura
dc.contributor.authorGarcia, Ana Rosa
dc.contributor.authorNajdanovic-Visak, Vesna
dc.contributor.authorFareleira, João M. N. A.
dc.contributor.authorCaetano, Fernando J. P.
dc.contributor.authorKijevcanin, Mirjana
dc.contributor.authorSerbanovic, Slobodan
dc.date.accessioned2015-01-15T16:11:12Z
dc.date.available2015-01-15T16:11:12Z
dc.date.issued2011-05
dc.description.abstractDensities and molar excess volumes of the solutions of pyridine or nicotine in liquid polyethylene glycol, PEG200 and PEG400, have been determined at several temperatures. The experimental molar excess volumes are negative, thus indicating strong attractive interactions between the components, as could be expected considering their highly polar nature and good hydrogen bond abilities. For the pyridine systems, this negativity is slightly increased as the temperature rises, while the opposite tendency is observed for the nicotine mixtures. When pyridine and nicotine solutions are compared, the former—particularly those with PEG400—exhibit substantially more negative molar excess volumes than the latter. The effect of the polymer chain length on the results for the nicotine solutions is almost negligible. However, this is not the case when pyridine is one of the components: a longer chain induced considerably higher compression on mixing. The Fourier-transform infrared analysis allowed interpretation of the negative experimental molar excess volumes in terms of specific inter- and intramolecular interactions.por
dc.identifier.doi10.1021/jp202464h
dc.identifier.urihttp://hdl.handle.net/10400.2/3596
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherAmerican Chemical Societypor
dc.relation.publisherversionhttp://pubs.acs.org/doi/abs/10.1021/jp202464hpor
dc.subjectVolumetric properties+por
dc.subjectSpectroscopicpor
dc.subjectPiridinepor
dc.subjectNicotinepor
dc.subjectPolyethylene glycolspor
dc.subjectDensitiespor
dc.subjectMolar excess volumespor
dc.subjectPEG400por
dc.titleVolumetric properties and spectroscopic studies of pyridine or nicotine solutions in liquid polyethylene glycolspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage8492por
oaire.citation.startPage8481por
oaire.citation.titleThe Journal of Physical Chemistry Bpor
oaire.citation.volume115por
person.familyNameNajdanovic-Visak
person.familyNameFareleira
person.familyNameCaetano
person.givenNameVesna
person.givenNameJoão
person.givenNameFernando J. P.
person.identifierF-3768-2012
person.identifier.ciencia-id8E1B-F54C-8ABD
person.identifier.ciencia-idDE17-708E-317F
person.identifier.orcid0000-0002-1035-0982
person.identifier.orcid0000-0002-8442-9386
person.identifier.orcid0000-0002-6821-1694
person.identifier.ridF-3768-2012
person.identifier.ridH-8325-2012
person.identifier.scopus-author-id7801671561
person.identifier.scopus-author-id6603840268
person.identifier.scopus-author-id7004474824
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationb2eb7347-5d27-451e-aba9-b366426a5280
relation.isAuthorOfPublication22e737b9-e5ab-460d-9200-5d088c622c08
relation.isAuthorOfPublicationf36ab422-62f8-4432-965c-73e36b0d25a2
relation.isAuthorOfPublication.latestForDiscoveryf36ab422-62f8-4432-965c-73e36b0d25a2

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