Langmuir and Langmuir-Blodgett films of poly[2-methoxy-5-(n-hexyloxy)-p-phenylenevinylene]

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dc.contributor.authorFerreira, M.
dc.contributor.authorConstantino, CJL
dc.contributor.authorOlivati, C. A.
dc.contributor.authorVega, A. L.
dc.contributor.authorBalogh, D. T.
dc.contributor.authorAroca, R. F.
dc.contributor.authorFaria, R. M.
dc.contributor.authorOliveira, O. N.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Windsor
dc.date.accessioned2014-05-20T13:22:53Z
dc.date.available2014-05-20T13:22:53Z
dc.date.issued2003-10-14
dc.description.abstractLangmuir films have been fabricated from poly[(2-methoxy-5-n-hexyloxy)-p-phenylenevinylene] (OC1OC6-PPV). The stability and the area per monomer for condensed films indicate the formation of true monolayers with a very small extent of aggregation, which is unusual for polymer films. This is attributed to the linearity of the alkyl side chain. The Y-type Langmuir-Blodgett (LB) films produced from Langmuir films of OC1OC6-PPV have distinctive features compared to those of cast films, probably due to the organization in the LB films whereas the molecules are randomly oriented in cast films. Infrared absorption spectra recorded for both transmission and reflection modes indicate that OC1OC6-PPV molecules are anchored to the substrate by the lateral groups. This is confirmed by the Raman spectrum, in which a distortion of the vinylene group was observed, and by surface enhanced fluorescence (SEF) on an LB monolayer deposited onto Ag nanoparticles. The more homogeneous nature of the LB films in comparison with the case of cast films was demonstrated by optical microscopy and fluorescence measurements where the emission spectra were essentially the same for different regions of an LB film but showed dispersion in cast films. The LB films also displayed reversible photoconductivity.en
dc.description.affiliationUniv São Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Fis Quim & Biol, Fac Ciências & Tecnol, BR-19060900 Presidente Prudente, SP, Brazil
dc.description.affiliationUniv Windsor, Sch Phys Sci, Mat & Surface Sci Grp, Windsor, ON N9B 3P4, Canada
dc.description.affiliationUnespUniv Estadual Paulista, Dept Fis Quim & Biol, Fac Ciências & Tecnol, BR-19060900 Presidente Prudente, SP, Brazil
dc.format.extent8835-8842
dc.identifierhttp://dx.doi.org/10.1021/la0346595
dc.identifier.citationLangmuir. Washington: Amer Chemical Soc, v. 19, n. 21, p. 8835-8842, 2003.
dc.identifier.doi10.1021/la0346595
dc.identifier.issn0743-7463
dc.identifier.lattes9822212808651415
dc.identifier.orcid0000-0002-0114-6795
dc.identifier.urihttp://hdl.handle.net/11449/6781
dc.identifier.wosWOS:000185831800034
dc.language.isoeng
dc.publisherAmer Chemical Soc
dc.relation.ispartofLangmuir
dc.relation.ispartofjcr3.789
dc.relation.ispartofsjr1,479
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleLangmuir and Langmuir-Blodgett films of poly[2-methoxy-5-(n-hexyloxy)-p-phenylenevinylene]en
dc.typeArtigo
dcterms.licensehttp://pubs.acs.org/paragonplus/copyright/jpa_form_a.pdf
dcterms.rightsHolderAmer Chemical Soc
unesp.author.lattes9822212808651415[3]
unesp.author.orcid0000-0002-0114-6795[3]
unesp.author.orcid0000-0002-9459-8167[1]
unesp.author.orcid0000-0002-9196-3982[5]
unesp.author.orcid0000-0002-5399-5860[8]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências e Tecnologia, Presidente Prudentept

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