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Solution behavior of Double-Hydrophilic Block Copolymers in Dilute Aqueous solution

Solution behavior of Double-Hydrophilic Block Copolymers in Dilute Aqueous solution

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CASSE, Olivier, Andriy SHKILNYY, Jürgen LINDERS, Christian MAYER, Daniel HÄUSSINGER, Antje VÖLKEL, Andreas F. THÜNEMANN, Rumiana DIMOVA, Helmut CÖLFEN, Wolfgang MEIER, Helmut SCHLAAD, Andreas TAUBERT, 2012. Solution behavior of Double-Hydrophilic Block Copolymers in Dilute Aqueous solution. In: Macromolecules. 45(11), pp. 4772-4777. ISSN 0024-9297. eISSN 1520-5835

@article{Casse2012Solut-22621, title={Solution behavior of Double-Hydrophilic Block Copolymers in Dilute Aqueous solution}, year={2012}, doi={10.1021/ma300621g}, number={11}, volume={45}, issn={0024-9297}, journal={Macromolecules}, pages={4772--4777}, author={Casse, Olivier and Shkilnyy, Andriy and Linders, Jürgen and Mayer, Christian and Häussinger, Daniel and Völkel, Antje and Thünemann, Andreas F. and Dimova, Rumiana and Cölfen, Helmut and Meier, Wolfgang and Schlaad, Helmut and Taubert, Andreas} }

<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/123456789/22621"> <dc:creator>Völkel, Antje</dc:creator> <dc:contributor>Dimova, Rumiana</dc:contributor> <dc:language>eng</dc:language> <dc:creator>Meier, Wolfgang</dc:creator> <dc:contributor>Cölfen, Helmut</dc:contributor> <dc:creator>Schlaad, Helmut</dc:creator> <dc:creator>Dimova, Rumiana</dc:creator> <dc:rights>deposit-license</dc:rights> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/22621"/> <dc:contributor>Völkel, Antje</dc:contributor> <dcterms:title>Solution behavior of Double-Hydrophilic Block Copolymers in Dilute Aqueous solution</dcterms:title> <dc:creator>Thünemann, Andreas F.</dc:creator> <dc:creator>Häussinger, Daniel</dc:creator> <dc:contributor>Casse, Olivier</dc:contributor> <dc:creator>Linders, Jürgen</dc:creator> <dcterms:issued>2012</dcterms:issued> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-04-25T11:34:26Z</dc:date> <dc:creator>Shkilnyy, Andriy</dc:creator> <dc:contributor>Schlaad, Helmut</dc:contributor> <dc:contributor>Mayer, Christian</dc:contributor> <dc:creator>Cölfen, Helmut</dc:creator> <dc:creator>Taubert, Andreas</dc:creator> <dcterms:abstract xml:lang="eng">The self-assembly of double-hydrophilic poly(ethylene oxide)–poly(2-methyl-2-oxazoline) diblock copolymers in water has been studied. Isothermal titration calorimetry, small-angle X-ray scattering, and analytical ultracentrifugation suggest that only single polymer chains are present in solution. In contrast, light scattering and transmission electron microscopy detect aggregates with radii of ca. 100 nm. Pulsed field gradient NMR spectroscopy confirms the presence of aggregates, although only 2% of the polymer chains undergo aggregation. Water uptake experiments indicate differences in the hydrophilicity of the two blocks, which is believed to be the origin of the unexpected aggregation behavior (in accordance with an earlier study by Ke et al. [Macromolecules2009, 42, 5339–5344]). The data therefore suggest that even in double-hydrophilic block copolymers, differences in hydrophilicity are sufficient to drive polymer aggregation, a phenomenon that has largely been overlooked or ignored so far.</dcterms:abstract> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-04-25T11:34:26Z</dcterms:available> <dc:creator>Casse, Olivier</dc:creator> <dcterms:rights rdf:resource="http://nbn-resolving.org/urn:nbn:de:bsz:352-20140905103605204-4002607-1"/> <dcterms:bibliographicCitation>Macromolecules ; 45 (2012), 11. - S. 4772-4777</dcterms:bibliographicCitation> <dc:contributor>Häussinger, Daniel</dc:contributor> <dc:contributor>Taubert, Andreas</dc:contributor> <dc:contributor>Shkilnyy, Andriy</dc:contributor> <dc:contributor>Meier, Wolfgang</dc:contributor> <dc:creator>Mayer, Christian</dc:creator> <dc:contributor>Linders, Jürgen</dc:contributor> <dc:contributor>Thünemann, Andreas F.</dc:contributor> </rdf:Description> </rdf:RDF>

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