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Ordering of anisotropic polarizable polymer chains on the full many-body level

hal.structure.identifierPhysique Statistique des Systèmes Complexes (LPT) [PhyStat]
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorDEAN, David
hal.structure.identifierDepartment of Theoretical Physics
hal.structure.identifierDepartment of Physics
dc.contributor.authorPODGORNIK, Rudolf
dc.date.created2011-12-29
dc.date.issued2012
dc.identifier.issn0021-9606
dc.description.abstractEnWe study the effect of dielectric anisotropy of polymers on their equilibrium ordering within mean-field theory but with a formalism that takes into account the full n-body nature of van der Waals forces. Dielectric anisotropy within polymers is to be expected as the electronic properties of the polymer will typically be different along the polymer than across its cross section. It is therefore physically intuitive that larger charge fluctuations can be induced along the chain than perpendicular to it. We show that this dielectric anisotropy leads to n-body interactions which can induce an isotropic--nematic transition. The two body and three body components of the full van der Waals interaction are extracted and it is shown how the two body term behaves like the phenomenological self-aligning-pairwise nematic interaction. At the three body interaction level we see that the nematic phase that is energetically favorable is discotic, however on the full n-body interaction level we find that the normal axial nematic phase is always the stable ordered phase. The n-body nature of our approach also shows that the key parameter driving the nematic-isotropic transition is the bare persistence length of the polymer chain.
dc.language.isoen
dc.publisherAmerican Institute of Physics
dc.title.enOrdering of anisotropic polarizable polymer chains on the full many-body level
dc.typeArticle de revue
dc.identifier.doi10.1063/1.3703762
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Mécanique statistique [cond-mat.stat-mech]
dc.identifier.arxiv1112.6278
bordeaux.journalJournal of Chemical Physics
bordeaux.page154905
bordeaux.volume136
bordeaux.issue15
bordeaux.peerReviewedoui
hal.identifierhal-00702047
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00702047v1
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