Giant permittivity and dynamic mobility observed for spherical polyelectrolyte brushes

Jiménez, Maria Luisa; Delgado, Angel; Ahualli, Silvia; Hoffmann, Marius; Wittemann, Alexander; Ballauff, Matthias

Giant permittivity and dynamic mobility observed for spherical polyelectrolyte brushes

Files

wittemann_giant.pdf(2.82 MB)

Date

2011

Authors

Jiménez, Maria Luisa

Delgado, Angel

Ahualli, Silvia

Hoffmann, Marius

Wittemann, Alexander

Ballauff, Matthias

Publication type

Journal article

Published in

Soft Matter ; 7 (2011), 8. - pp. 3758-3762. - ISSN 1744-683X

Abstract

We prcsent a study of the electrodynamic behavior of concentrated suspensions of spherical polyelectrolyte brushcs (SPBs). The dynamic mobility of the SPBs exhibits giant values. Concomitantly, . the dielectric spectra of suspensions of these particlcs display enormous loss peaks in the kHz frequency range. The strong dielectric relaxation is a direct consequence of the inhomogeneity of the counterion distribution inside the polyelectrolyte layer. As can be concluded from the experimentally determined relaxation frequency, the mobility of mono valent counterions is strongly diminished in the brush region. The dynamic behavior ofthe SPBs at high volume fractions can be explained by the assumption that the polyelectrolyte chains deform when particlcs approach each other.

Subject (DDC)

540 Chemistry

Cite This

ISO 690

JIMÉNEZ, Maria Luisa, Angel DELGADO, Silvia AHUALLI, Marius HOFFMANN, Alexander WITTEMANN, Matthias BALLAUFF, 2011. Giant permittivity and dynamic mobility observed for spherical polyelectrolyte brushes. In: Soft Matter. 7(8), pp. 3758-3762. ISSN 1744-683X. Available under: doi: 10.1039/C0SM01544J

BibTex

@article{Jimenez2011Giant-20181,
  year={2011},
  doi={10.1039/C0SM01544J},
  title={Giant permittivity and dynamic mobility observed for spherical polyelectrolyte brushes},
  number={8},
  volume={7},
  issn={1744-683X},
  journal={Soft Matter},
  pages={3758--3762},
  author={Jiménez, Maria Luisa and Delgado, Angel and Ahualli, Silvia and Hoffmann, Marius and Wittemann, Alexander and Ballauff, Matthias}
}

RDF

<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/20181">
    <dc:creator>Wittemann, Alexander</dc:creator>
    <dc:contributor>Hoffmann, Marius</dc:contributor>
    <dcterms:issued>2011</dcterms:issued>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:creator>Hoffmann, Marius</dc:creator>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/20181/1/wittemann_giant.pdf"/>
    <dc:rights>terms-of-use</dc:rights>
    <dc:creator>Ahualli, Silvia</dc:creator>
    <dcterms:title>Giant permittivity and dynamic mobility observed for spherical polyelectrolyte brushes</dcterms:title>
    <dc:creator>Jiménez, Maria Luisa</dc:creator>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dc:contributor>Ahualli, Silvia</dc:contributor>
    <dc:contributor>Jiménez, Maria Luisa</dc:contributor>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <dcterms:bibliographicCitation>First publ. in: Soft Matter ; 8 (2011), 7. - pp. 3758-3762</dcterms:bibliographicCitation>
    <dc:language>eng</dc:language>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2012-08-21T13:09:14Z</dc:date>
    <dc:contributor>Ballauff, Matthias</dc:contributor>
    <dc:contributor>Delgado, Angel</dc:contributor>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dcterms:abstract xml:lang="eng">We prcsent a study of the electrodynamic behavior of concentrated suspensions of spherical polyelectrolyte brushcs (SPBs). The dynamic mobility of the SPBs exhibits giant values. Concomitantly, . the dielectric spectra of suspensions of these particlcs display enormous loss peaks in the kHz frequency range. The strong dielectric relaxation is a direct consequence of the inhomogeneity of the counterion distribution inside the polyelectrolyte layer. As can be concluded from the experimentally determined relaxation frequency, the mobility of mono valent counterions is strongly diminished in the brush region. The dynamic behavior ofthe SPBs at high volume fractions can be explained by the assumption that the polyelectrolyte chains deform when particlcs approach each other.</dcterms:abstract>
    <dc:creator>Delgado, Angel</dc:creator>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/20181/1/wittemann_giant.pdf"/>
    <dc:contributor>Wittemann, Alexander</dc:contributor>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2012-08-21T13:09:14Z</dcterms:available>
    <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/20181"/>
    <dc:creator>Ballauff, Matthias</dc:creator>
  </rdf:Description>
</rdf:RDF>

Bibliography of Konstanz

Yes