Molecular-level interactions of an azopolymer and poly(dodecylmethacrylate) in mixed Langmuir and Langmuir-Blodgett films for optical storage

Página do item simplificado
dc.contributor.authorCeridorio, Lucineia F.
dc.contributor.authorBalogh, Debora T.
dc.contributor.authorCaseli, Luciano [UNIFESP]
dc.contributor.authorCardoso, Marcos R.
dc.contributor.authorViitala, Tapani
dc.contributor.authorMendonca, Cleber R.
dc.contributor.authorOliveira, Osvaldo N.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionKSV Instruments Ltda
dc.date.accessioned2016-01-24T13:59:45Z
dc.date.available2016-01-24T13:59:45Z
dc.date.issued2010-06-01
dc.description.abstractThe applicability of azopolymers in optical storage can be extended through the use of nanostructured films produced with the Langmuir-Blodgett (LB) technique, but the film properties need to be optimized since these polymers generally do not form stable Langmuir films to be transferred onto solid substrates Here, photoinduced birefringence was investigated for mixed Langmuir-Blodgett films from the homopolymers 4-[N-ethyl-N-(2-methacryloxyethyl)1-4'-nitroazobenzene (HPDR1-MA) and poly(dodecylmethacrylate) (HPDod-MA) the interactions between these polymers were studied in Langmuir and LB films Surface pressure-area isotherms pointed to molecular-level interactions for proportions of 51 mf%, 41 mf% and 31 mf% of HPDR1-MA. Phase segregation was not apparent in the BAM images, in which the morphology of the blend film was clearly different from that of the Langmuir films of neat homopolymers Through PM-IRRAS, we noted that the interaction between the azopolymer and HPDod-MA affected the orientation of carbonyl groups Strong interactions for the mixture with 41 mf% of poly(dodecylmethacrylate) led to stable Langmuir films that were transferred onto solid supports as LB films the photoinduced birefringence of 101-layer mixed LB films show features that make these films useful for optical storage, with the advantage of short writing times in comparison to other azopolymer films (C) 2010 Elsevier Inc All rights reserveden
dc.description.affiliationUSP, Inst Fis Sao Carlos, BR-13560250 Sao Carlos, SP, Brazil
dc.description.affiliationUniversidade Federal de São Paulo, Dept Ciencias Exactas & Terra, BR-09972270 Diadema, SP, Brazil
dc.description.affiliationKSV Instruments Ltda, Helsinki 00380, Finland
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Dept Ciencias Exactas & Terra, BR-09972270 Diadema, SP, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.extent87-95
dc.identifierhttp://dx.doi.org/10.1016/j.jcis.2010.02.061
dc.identifier.citationJournal of Colloid and Interface Science. San Diego: Academic Press Inc Elsevier Science, v. 346, n. 1, p. 87-95, 2010.
dc.identifier.doi10.1016/j.jcis.2010.02.061
dc.identifier.issn0021-9797
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/32592
dc.identifier.wosWOS:000277132700015
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofJournal of Colloid and Interface Science
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.rights.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.subjectAzopolymersen
dc.subjectOptical storageen
dc.subjectATRPen
dc.subjectLangmuir-Blodgetten
dc.subjectPM-IRRASen
dc.titleMolecular-level interactions of an azopolymer and poly(dodecylmethacrylate) in mixed Langmuir and Langmuir-Blodgett films for optical storageen
dc.typeinfo:eu-repo/semantics/article
Arquivos
Coleções
ICAQF - Artigos