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Cooperative effects in the detection of a nitroaliphatic liquid explosive and na explosive taggant in the vapor phase by calix[4]arene-based carbazole-containing conjugated polymers

2014-01Journal article Open access
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dc.contributor.authorD. Barata, Patrícia
dc.contributor.authorPrata, José Virgílio
dc.date.accessioned2015-08-24T10:32:38Z
dc.date.available2015-08-24T10:32:38Z
dc.date.issued2014-01
dc.description.abstractTwo fluorescent molecular receptor based conjugated polymers were used in the detection of a nitroaliphatic liquid explosive (nitromethane) and an explosive taggant (2,3-dimethyl-2,3-dinitrobutane) in the vapor phase. Results have shown that thin films of both polymers display remarkably high sensitivity and selectivity toward these analytes. Very fast, reproducible, and reversible responses were found. The unique behavior of these supramolecular host systems is ascribed to cooperativity effects developed between the calix[4] arene hosts and the phenylene ethynylene-carbazolylene main chains. The calix[4]-arene hosts create a plethora of host-guest binding sites along the polymer backbone, either in their bowl-shaped cavities or between the outer walls of the cavity, to direct guests to the area of the transduction centers (main chain) at which favorable photoinduced electron transfer to the guest molecules occurs and leads to the observed fluorescence quenching. The high tridimensional porous nature of the polymers imparted by the bis-calixarene moieties concomitantly allows fast diffusion of guest molecules into the polymer thin films.por
dc.identifier.citationBARATA, Patrícia Alexandra David; PRATA, José Virgílio Coelho – Cooperative effects in the detection of a nitroaliphatic liquid explosive and na explosive taggant in the vapor phase by Calix[4]Arene-based carbazole-containing conjugated polymers. Chempluschem. ISSN: 2192-6506. Vol. 79, nr. 7 (2014), pp. 83-89por
dc.identifier.doi10.1002/cplu.201300280
dc.identifier.issn2192-6506
dc.identifier.urihttp://hdl.handle.net/10400.21/4928
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherWiley-V C H Verlag GMBHpor
dc.subjectCalixarenespor
dc.subjectCarbazolespor
dc.subjectExplosivespor
dc.subjectHost-Guest Systemspor
dc.subjectPolymerspor
dc.subjectPolymerspor
dc.titleCooperative effects in the detection of a nitroaliphatic liquid explosive and na explosive taggant in the vapor phase by calix[4]arene-based carbazole-containing conjugated polymerspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceWeinheimpor
oaire.citation.endPage89por
oaire.citation.issue1por
oaire.citation.startPage83por
oaire.citation.titleChempluschempor
oaire.citation.volume79por
person.familyNameBarata
person.familyNamePrata
person.givenNamePatrícia
person.givenNameJosé Virgílio
person.identifier1090399
person.identifier191765
person.identifier.ciencia-idC019-9F30-0F99
person.identifier.ciencia-idC11A-9130-8981
person.identifier.orcid0000-0001-8274-633X
person.identifier.orcid0000-0002-9068-2847
person.identifier.ridB-7214-2008
person.identifier.scopus-author-id8968446000
person.identifier.scopus-author-id9276778400
rcaap.rightsclosedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication4ab8a01f-c11d-4b3b-b0cf-b21e5b634170
relation.isAuthorOfPublication15e229f3-a619-4931-87eb-799091dc1601
relation.isAuthorOfPublication.latestForDiscovery15e229f3-a619-4931-87eb-799091dc1601

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