Entropic interactions in mixtures of colloids and non-ionic polymers


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RUDHARDT, Daniel, Clemens BECHINGER, Paul LEIDERER, 1999. Entropic interactions in mixtures of colloids and non-ionic polymers. In: Progress in Colloid and Polymer Science. 112, pp. 163-167

@article{Rudhardt1999Entro-8922, title={Entropic interactions in mixtures of colloids and non-ionic polymers}, year={1999}, doi={10.1007/3-540-48953-3_34}, volume={112}, journal={Progress in Colloid and Polymer Science}, pages={163--167}, author={Rudhardt, Daniel and Bechinger, Clemens and Leiderer, Paul} }

<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/123456789/8922"> <dcterms:rights rdf:resource="https://creativecommons.org/licenses/by-nc-nd/2.0/legalcode"/> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/8922"/> <dc:contributor>Rudhardt, Daniel</dc:contributor> <dc:format>application/pdf</dc:format> <dcterms:abstract xml:lang="eng">In binary colloidal mixtures, depletion forces or purely entropic origin play an important role besides interaction like Coulomb or van der Waals interactions. We have measured the potential energy between a single, negatively charged polystyrene sphere (R = 1.5 mm) close to an equally charged wall in the presence of uncharged polymer coils (r = 150 nm) by means of total internal reflection microscopy. Our results show a strong dependence on the polymer concentration n and can be explained by the occurrence of depletion forces. Comparison of our data with a theory which is only correct in first-order n shows good agreement. We also present first observations in a system with an increased particle / polymer size ratio (R = 5 mm, r = 0.15 mm)where higher-order terms in the depletion potential become important.</dcterms:abstract> <dc:contributor>Leiderer, Paul</dc:contributor> <dc:creator>Leiderer, Paul</dc:creator> <dcterms:bibliographicCitation>First publ. in: Progress in Colloid and Polymer Science 112 (1999), pp. 163-167</dcterms:bibliographicCitation> <dc:rights>deposit-license</dc:rights> <dcterms:title>Entropic interactions in mixtures of colloids and non-ionic polymers</dcterms:title> <dc:creator>Rudhardt, Daniel</dc:creator> <dc:creator>Bechinger, Clemens</dc:creator> <dcterms:issued>1999</dcterms:issued> <dc:contributor>Bechinger, Clemens</dc:contributor> <dc:language>eng</dc:language> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:51:41Z</dc:date> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:51:41Z</dcterms:available> </rdf:Description> </rdf:RDF>

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