NMR study of ion-conducting organic-inorganic nanocomposites poly(ethylene glycol) - Silica - LiClO4

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dc.contributor.authorMello, N. C.
dc.contributor.authorBonagamba, T. J.
dc.contributor.authorPanepucci, H.
dc.contributor.authorDahmouche, K.
dc.contributor.authorJudeinstein, P.
dc.contributor.authorAegerter, M. A.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Paris Sud
dc.contributor.institutionInst Neue Mat
dc.date.accessioned2014-05-20T15:26:45Z
dc.date.available2014-05-20T15:26:45Z
dc.date.issued2000-02-22
dc.description.abstractHybrid organic-inorganic ionic conductors, also called ormolytes, were obtained by dissolution of LiClO4 into silica/poly(ethylene glycol) matrices. Solid-state nuclear magnetic resonance (NMR) was used to probe the inorganic phase structure (Si-29) and the effects of the temperature and composition on the dynamic behavior of the ionic species (Li-7) and the polymer chains (H-1 and C-13). The NMR results between -100 and +90 degrees C show a strong correlation with ionic conductivity and differential scanning calorimetry experiments. The results also demonstrate that the cation mobility is assisted by segmental motion of the polymer, which is in agreement with the results previously reported for pure poly(ethylene oxide), PEG, electrolytes.en
dc.description.affiliationUniv São Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
dc.description.affiliationUNESP, Inst Quim Araraquara, BR-14800900 Araraquara, SP, Brazil
dc.description.affiliationUniv Paris Sud, Chim Organ Struct Lab, UPRESA CNRS 8074, F-91405 Orsay, France
dc.description.affiliationInst Neue Mat, Dept Coating Technol, D-66123 Saarbrucken, Germany
dc.description.affiliationUnespUNESP, Inst Quim Araraquara, BR-14800900 Araraquara, SP, Brazil
dc.format.extent1280-1288
dc.identifierhttp://dx.doi.org/10.1021/ma991624w
dc.identifier.citationMacromolecules. Washington: Amer Chemical Soc, v. 33, n. 4, p. 1280-1288, 2000.
dc.identifier.doi10.1021/ma991624w
dc.identifier.issn0024-9297
dc.identifier.urihttp://hdl.handle.net/11449/36836
dc.identifier.wosWOS:000085449800031
dc.language.isoeng
dc.publisherAmer Chemical Soc
dc.relation.ispartofMacromolecules
dc.relation.ispartofjcr5.914
dc.relation.ispartofsjr2,419
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleNMR study of ion-conducting organic-inorganic nanocomposites poly(ethylene glycol) - Silica - LiClO4en
dc.typeArtigo
dcterms.licensehttp://pubs.acs.org/paragonplus/copyright/jpa_form_a.pdf
dcterms.rightsHolderAmer Chemical Soc
unesp.author.orcid0000-0002-9617-5707[5]

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