Annealing of single lamella nanoparticles of polyethylene


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ROCHETTE, Christophe N., Sabine ROSENFELDT, Katja HENZLER, Frank POLZER, Matthias BALLAUFF, Qiong TONG, Stefan MECKING, Markus DRECHSLER, Theyencheri NARAYANAN, Ludger HARNAU, 2011. Annealing of single lamella nanoparticles of polyethylene. In: Macromolecules. 44(12), pp. 4845-4851. ISSN 0024-9297

@article{Rochette2011Annea-19284, title={Annealing of single lamella nanoparticles of polyethylene}, year={2011}, doi={10.1021/ma2003213}, number={12}, volume={44}, issn={0024-9297}, journal={Macromolecules}, pages={4845--4851}, author={Rochette, Christophe N. and Rosenfeldt, Sabine and Henzler, Katja and Polzer, Frank and Ballauff, Matthias and Tong, Qiong and Mecking, Stefan and Drechsler, Markus and Narayanan, Theyencheri and Harnau, Ludger} }

<rdf:RDF xmlns:rdf="" xmlns:bibo="" xmlns:dc="" xmlns:dcterms="" xmlns:xsd="" > <rdf:Description rdf:about=""> <bibo:uri rdf:resource=""/> <dc:creator>Ballauff, Matthias</dc:creator> <dcterms:abstract xml:lang="eng">We study the change of the size and structure of freely suspended single lamella nanoparticles of polyethylene during thermal annealing in aqueous solutions. Using small-angle X-ray scattering and cryogenic transmission electron microscopy, it is shown that a doubling of the crystalline lamella sandwiched between two amorphous polymer layers is obtained by annealing the nanoparticles at 125 °C. This thickening of the crystalline lamella can be understood in terms of an unlooping of polymer chains within a single nanoparticle. In addition, a variation of the annealing temperature from 90 to 115 °C demonstrates that the inverse of the crystalline lamellar thickness increases linearly with the annealing temperatures leading to a recrystallization line in a Gibbs–Thomson graph. Since the nanoparticles consist of about only eight polymer chains, they can be considered as a ideal candidates for the experimental realization of equilibrium polymer crystals.</dcterms:abstract> <dc:contributor>Henzler, Katja</dc:contributor> <dc:contributor>Drechsler, Markus</dc:contributor> <dc:contributor>Ballauff, Matthias</dc:contributor> <dcterms:issued>2011</dcterms:issued> <dcterms:bibliographicCitation>First publ. in: Macromolecules ; 44 (2011), 12. - S. 4845-4851</dcterms:bibliographicCitation> <dc:contributor>Rosenfeldt, Sabine</dc:contributor> <dc:creator>Henzler, Katja</dc:creator> <dc:creator>Rochette, Christophe N.</dc:creator> <dc:creator>Drechsler, Markus</dc:creator> <dc:date rdf:datatype="">2012-05-11T08:42:45Z</dc:date> <dc:creator>Mecking, Stefan</dc:creator> <dc:creator>Narayanan, Theyencheri</dc:creator> <dc:creator>Rosenfeldt, Sabine</dc:creator> <dcterms:rights rdf:resource=""/> <dcterms:available rdf:datatype="">2012-06-30T22:25:07Z</dcterms:available> <dcterms:title>Annealing of single lamella nanoparticles of polyethylene</dcterms:title> <dc:contributor>Polzer, Frank</dc:contributor> <dc:creator>Polzer, Frank</dc:creator> <dc:creator>Harnau, Ludger</dc:creator> <dc:contributor>Mecking, Stefan</dc:contributor> <dc:language>eng</dc:language> <dc:contributor>Narayanan, Theyencheri</dc:contributor> <dc:contributor>Rochette, Christophe N.</dc:contributor> <dc:contributor>Harnau, Ludger</dc:contributor> <dc:creator>Tong, Qiong</dc:creator> <dc:contributor>Tong, Qiong</dc:contributor> <dc:rights>deposit-license</dc:rights> </rdf:Description> </rdf:RDF>

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