KOPS - The Institutional Repository of the University of Konstanz

In Situ Investigation of Complex BaSO4 Fiber Generation in the Presence of Sodium Polyacrylate : 1. Kinetics and Solution Analysis

In Situ Investigation of Complex BaSO4 Fiber Generation in the Presence of Sodium Polyacrylate : 1. Kinetics and Solution Analysis

Cite This

Files in this item

Files Size Format View

There are no files associated with this item.

WANG, Tongxin, Helmut CÖLFEN, 2006. In Situ Investigation of Complex BaSO4 Fiber Generation in the Presence of Sodium Polyacrylate : 1. Kinetics and Solution Analysis. In: Langmuir. 22(21), pp. 8975-8985. ISSN 0743-7463. eISSN 1520-5827. Available under: doi: 10.1021/la0609827

@article{Wang2006Inves-40377, title={In Situ Investigation of Complex BaSO4 Fiber Generation in the Presence of Sodium Polyacrylate : 1. Kinetics and Solution Analysis}, year={2006}, doi={10.1021/la0609827}, number={21}, volume={22}, issn={0743-7463}, journal={Langmuir}, pages={8975--8985}, author={Wang, Tongxin and Cölfen, Helmut} }

<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/rdf/resource/123456789/40377"> <dcterms:issued>2006</dcterms:issued> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-10-18T09:31:36Z</dc:date> <dcterms:title>In Situ Investigation of Complex BaSO4 Fiber Generation in the Presence of Sodium Polyacrylate : 1. Kinetics and Solution Analysis</dcterms:title> <dcterms:abstract xml:lang="eng">Simple solution analysis of the formation mechanism of complex BaSO(4) fiber bundles in the presence of polyacrylate sodium salt, via a bioinspired approach, is reported. Titration of the polyacrylate solution with Ba(2+) revealed complex formation and the optimum ratio of Ba(2+) to polyacrylate for a slow polymer-controlled mineralization process. This is a much simpler and faster method to determine the appropriate additive/mineral concentration pairs as opposed to more common crystallization experiments in which the additive/mineral concentration is varied. Time-dependent pH measurements were carried out to determine the concentration of solution species from which BaSO(4) supersaturation throughout the fiber formation process can be calculated and the second-order kinetics of the Ba(2+) concentration in solution can be identified. Conductivity measurements, pH measurements, and analytical ultracentrifugation revealed the first formed species to be Ba-polyacrylate complexes. A combination of the solution analysis results and optical microscopic images allows a detailed picture of the complex precipitation and self-organization process, a particle-mediated process involving mesoscopic transformations, to be revealed.</dcterms:abstract> <dc:creator>Wang, Tongxin</dc:creator> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/29"/> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/40377"/> <dc:language>eng</dc:language> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/29"/> <dc:creator>Cölfen, Helmut</dc:creator> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-10-18T09:31:36Z</dcterms:available> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dc:contributor>Wang, Tongxin</dc:contributor> <dc:contributor>Cölfen, Helmut</dc:contributor> </rdf:Description> </rdf:RDF>

This item appears in the following Collection(s)

Search KOPS


Browse

My Account