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Density profile and polymer configurations for a polymer melt in a regular array of nanotubes

Peixoto, Tiago ; Drossel, Barbara (2011)
Density profile and polymer configurations for a polymer melt in a regular array of nanotubes.
In: New Journal of Physics, 13 (7)
doi: 10.1088/1367-2630/13/7/073030
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

By using two generic polymer models, namely self-consistent field theory and bond-fluctuation Monte-Carlo simulations, we investigate numerically the properties of a polymer melt in a hexagonal array of nanotubes as a function of the polymer length, the interaction with the nanotubes and the compressibility or average density. The combined effect of the attractive interaction with the nanotube walls, the entropy decrease due to the impenetrability of the walls and the hexagonal arrangement of the nanotubes with varying gap size in between them leads to a wide array of possible density profiles and polymer configurations as a function of the model parameters. Even in the case of the Monte-Carlo simulations, where the contact interaction affects only the first layer of monomers, the effect of the wall can nevertheless be felt throughout the entire melt at intermediate temperatures.

Typ des Eintrags: Artikel
Erschienen: 2011
Autor(en): Peixoto, Tiago ; Drossel, Barbara
Art des Eintrags: Bibliographie
Titel: Density profile and polymer configurations for a polymer melt in a regular array of nanotubes
Sprache: Englisch
Publikationsjahr: 26 Juli 2011
Ort: London
Verlag: IOP Publishing
Titel der Zeitschrift, Zeitung oder Schriftenreihe: New Journal of Physics
Jahrgang/Volume einer Zeitschrift: 13
(Heft-)Nummer: 7
Kollation: 16 Seiten
DOI: 10.1088/1367-2630/13/7/073030
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Kurzbeschreibung (Abstract):

By using two generic polymer models, namely self-consistent field theory and bond-fluctuation Monte-Carlo simulations, we investigate numerically the properties of a polymer melt in a hexagonal array of nanotubes as a function of the polymer length, the interaction with the nanotubes and the compressibility or average density. The combined effect of the attractive interaction with the nanotube walls, the entropy decrease due to the impenetrability of the walls and the hexagonal arrangement of the nanotubes with varying gap size in between them leads to a wide array of possible density profiles and polymer configurations as a function of the model parameters. Even in the case of the Monte-Carlo simulations, where the contact interaction affects only the first layer of monomers, the effect of the wall can nevertheless be felt throughout the entire melt at intermediate temperatures.

ID-Nummer: Artikel-ID: 073030
Fachbereich(e)/-gebiet(e): 05 Fachbereich Physik
05 Fachbereich Physik > Institut für Festkörperphysik (2021 umbenannt in Institut für Physik Kondensierter Materie (IPKM))
05 Fachbereich Physik > Institut für Festkörperphysik (2021 umbenannt in Institut für Physik Kondensierter Materie (IPKM)) > Statistische Physik und komplexe Systeme
Hinterlegungsdatum: 26 Jul 2011 14:12
Letzte Änderung: 07 Mär 2024 10:16
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