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High elongation of polyelectrolyte chains in the osmotic limit of spherical polyelectrolyte brushes :  A study by cryogenic transmission electron microscopy

High elongation of polyelectrolyte chains in the osmotic limit of spherical polyelectrolyte brushes :  A study by cryogenic transmission electron microscopy

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WITTEMANN, Alexander, Markus DRECHSLER, Yeshayahu TALMON, Matthias BALLAUFF, 2005. High elongation of polyelectrolyte chains in the osmotic limit of spherical polyelectrolyte brushes :  A study by cryogenic transmission electron microscopy. In: Journal of the American Chemical Society. 127(27), pp. 9688-9689. ISSN 0002-7863

@article{Wittemann2005-07-13elong-20205, title={High elongation of polyelectrolyte chains in the osmotic limit of spherical polyelectrolyte brushes :  A study by cryogenic transmission electron microscopy}, year={2005}, doi={10.1021/ja0513234}, number={27}, volume={127}, issn={0002-7863}, journal={Journal of the American Chemical Society}, pages={9688--9689}, author={Wittemann, Alexander and Drechsler, Markus and Talmon, Yeshayahu and Ballauff, Matthias} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/20205"> <dcterms:issued>2005-07-13</dcterms:issued> <dc:contributor>Talmon, Yeshayahu</dc:contributor> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2012-08-23T07:55:33Z</dc:date> <dcterms:title>High elongation of polyelectrolyte chains in the osmotic limit of spherical polyelectrolyte brushes :  A study by cryogenic transmission electron microscopy</dcterms:title> <dc:creator>Ballauff, Matthias</dc:creator> <dcterms:bibliographicCitation>Publ. in: Journal of the American Chemical Society ; 127 (2005), 27. - pp. 9688–9689</dcterms:bibliographicCitation> <dc:creator>Wittemann, Alexander</dc:creator> <dc:language>eng</dc:language> <dc:contributor>Drechsler, Markus</dc:contributor> <dc:creator>Talmon, Yeshayahu</dc:creator> <dc:contributor>Wittemann, Alexander</dc:contributor> <dc:creator>Drechsler, Markus</dc:creator> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2012-08-23T07:55:33Z</dcterms:available> <dc:contributor>Ballauff, Matthias</dc:contributor> <dcterms:abstract xml:lang="eng">We investigate the conformation of long polyelectrolyte chains attached to colloidal latex particles by cryogenic transmission electron microscopy (cryo-TEM). The dense grafting of the polyelectrolyte chains (“polyelectrolyte brush”) leads to a confinement of the counterions and a concomitantly high osmotic pressure within the polyelectrolyte layer attached to the core particles. Cryo-TEM has provided first model-independent direct proof for the strong stretching of the polyelectrolyte chains by direct visualization. If salt is added, cryo-TEM clearly shows how chains collapse because of the strong screening of the electrostatic interaction. Moreover, the analysis of interacting particles by cryo-TEM shows that the polyelectrolyte chains retract at close contact. Hence, we demonstrate how cryo-TEM can be used to analyze directly the spatial structure of polyelectrolyte brushes in situ.</dcterms:abstract> <dcterms:rights rdf:resource="http://nbn-resolving.org/urn:nbn:de:bsz:352-20140905103605204-4002607-1"/> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/20205"/> <dc:rights>deposit-license</dc:rights> </rdf:Description> </rdf:RDF>

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