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Effect of Electrical Field on Dipoles in Polymer

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F04%3A00011739" target="_blank" >RIV/60461373:22310/04:00011739 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Effect of Electrical Field on Dipoles in Polymer

  • Original language description

    Orientation of two bipolar compounds embeddedin polymer composites was studied. Poly(methylmethacrylate) (PMMA) dissolved in acetone was dopedwith a cobaltborane derivative of 1,2-dimethylimidazole andpolystyrene (PS) dissolved in toluene was doped withthe3-(1,2-dimethyl imidazole)-borane. To orient the dipoles, thecomposites were exposed to external electrical field: PMMAcomposite at the temperature of glass transition (Tg) and PScomposite during evaporation of the toluene solvent. Thedegree of dipoleorientation was estimated by the change inrelative permittivity ( ) of the resulting composite film. Thedependence of the on the temperature, frequency, voltage,and dipole concentration was studied. It was found that thedipole#s distribution in the composite .lm was not homogenous.At the Tg, the dipoles in PMMA became oriented byexternal direct electrical .eld and the orientation was conservedafter cooling to lower temperatures. In a PS-basedcomposite, the significant permittivity incre

  • Czech name

    Vliv elektrického pole na dipóly v polymerních kompozitech

  • Czech description

    Vliv elektrického pole na dipóly v polymerních kompozitech

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CD - Macromolecular chemistry

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GA102%2F01%2F1324" target="_blank" >GA102/01/1324: Dielectrical and electrical properties of polymeric composites</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2004

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Applied Polymer Science

  • ISSN

    0021-8995

  • e-ISSN

  • Volume of the periodical

    neuveden

  • Issue of the periodical within the volume

    91

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    6

  • Pages from-to

    40-45

  • UT code for WoS article

  • EID of the result in the Scopus database