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Local dielectric spectroscopy of polyvinylpyrrolidone–Mo6S2I8 nanowire composite.

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Title: Local dielectric spectroscopy of polyvinylpyrrolidone–Mo6S2I8 nanowire composite.
Authors: Labardi, M.1 labardi@df.unipi.it, Park, J.H.2, Nguyen, H.K.1, Prevosto, D.1, Seong, C.-Y.2, Mrzel, A.3, Scalia, G.2
Source: Journal of Non-Crystalline Solids. Nov2013, Vol. 379, p224-228. 5p.
Subjects: Povidone, Broadband dielectric spectroscopy, Nanowires, Composite materials, Interfaces (Physical sciences), Temperature effect, Hydrogen bonding
Abstract: Abstract: A polymeric nanocomposite of polyvinylpyrrolidone and Mo6S2I8 inorganic nanowires was obtained, and its electric properties were characterized on a local scale in the vicinity of the interface between polymer and nanoinclusions. Local dielectric spectroscopy was applied to investigate relaxation dynamics of the polymer close to such interface, at variance of temperature and moisture content, within a thin film supported on a conductive substrate. An intense relaxation process is observed at the polymer/nanoinclusions interface, which could be a secondary relaxation process of the polymer enhanced by the proximity to the conductive nanowires. Furthermore, its relaxation dynamics becomes slower when moisture content is increased which could be explained by the hindering of pyrrolidone ring motions due to hydrogen bonding. [Copyright &y& Elsevier]
Copyright of Journal of Non-Crystalline Solids is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 90525512
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
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  Data: Local dielectric spectroscopy of polyvinylpyrrolidone–Mo<subscript>6</subscript>S<subscript>2</subscript>I<subscript>8</subscript> nanowire composite.
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  Data: <searchLink fieldCode="AR" term="%22Labardi%2C+M%2E%22">Labardi, M.</searchLink><relatesTo>1</relatesTo><i> labardi@df.unipi.it</i><br /><searchLink fieldCode="AR" term="%22Park%2C+J%2EH%2E%22">Park, J.H.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Nguyen%2C+H%2EK%2E%22">Nguyen, H.K.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Prevosto%2C+D%2E%22">Prevosto, D.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Seong%2C+C%2E-Y%2E%22">Seong, C.-Y.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Mrzel%2C+A%2E%22">Mrzel, A.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Scalia%2C+G%2E%22">Scalia, G.</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Non-Crystalline+Solids%22">Journal of Non-Crystalline Solids</searchLink>. Nov2013, Vol. 379, p224-228. 5p.
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  Data: <searchLink fieldCode="DE" term="%22Povidone%22">Povidone</searchLink><br /><searchLink fieldCode="DE" term="%22Broadband+dielectric+spectroscopy%22">Broadband dielectric spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Nanowires%22">Nanowires</searchLink><br /><searchLink fieldCode="DE" term="%22Composite+materials%22">Composite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Interfaces+%28Physical+sciences%29%22">Interfaces (Physical sciences)</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature+effect%22">Temperature effect</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogen+bonding%22">Hydrogen bonding</searchLink>
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  Label: Abstract
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  Data: Abstract: A polymeric nanocomposite of polyvinylpyrrolidone and Mo6S2I8 inorganic nanowires was obtained, and its electric properties were characterized on a local scale in the vicinity of the interface between polymer and nanoinclusions. Local dielectric spectroscopy was applied to investigate relaxation dynamics of the polymer close to such interface, at variance of temperature and moisture content, within a thin film supported on a conductive substrate. An intense relaxation process is observed at the polymer/nanoinclusions interface, which could be a secondary relaxation process of the polymer enhanced by the proximity to the conductive nanowires. Furthermore, its relaxation dynamics becomes slower when moisture content is increased which could be explained by the hindering of pyrrolidone ring motions due to hydrogen bonding. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Non-Crystalline Solids is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
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      – Type: doi
        Value: 10.1016/j.jnoncrysol.2013.08.015
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 5
        StartPage: 224
    Subjects:
      – SubjectFull: Povidone
        Type: general
      – SubjectFull: Broadband dielectric spectroscopy
        Type: general
      – SubjectFull: Nanowires
        Type: general
      – SubjectFull: Composite materials
        Type: general
      – SubjectFull: Interfaces (Physical sciences)
        Type: general
      – SubjectFull: Temperature effect
        Type: general
      – SubjectFull: Hydrogen bonding
        Type: general
    Titles:
      – TitleFull: Local dielectric spectroscopy of polyvinylpyrrolidone–Mo6S2I8 nanowire composite.
        Type: main
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          Name:
            NameFull: Labardi, M.
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            NameFull: Park, J.H.
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            NameFull: Nguyen, H.K.
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            NameFull: Prevosto, D.
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            NameFull: Seong, C.-Y.
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            NameFull: Mrzel, A.
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            – D: 01
              M: 11
              Text: Nov2013
              Type: published
              Y: 2013
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              Value: 00223093
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            – Type: volume
              Value: 379
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            – TitleFull: Journal of Non-Crystalline Solids
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