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Reducing thermal transport in electrically conducting polymers: Effects of ordered mixing of polymer chains

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dc.contributorVirginia Techen
dc.contributor.authorPal, Souviken
dc.contributor.authorBalasubramanian, Ganeshen
dc.contributor.authorPuri, Ishwar K.en
dc.contributor.departmentBiomedical Engineering and Mechanicsen
dc.date.accessed2014-01-10en
dc.date.accessioned2014-01-21T19:28:06Zen
dc.date.available2014-01-21T19:28:06Zen
dc.date.issued2013-01-01en
dc.description.abstractReducing the phonon thermal conductivity of electrically conducting polymers can facilitate their use as potential thermoelectric materials. Thus, the influence of the coupling between the longitudinal and transverse phonon modes on overall thermal conductivity is explored for binary mixtures of polyaniline (PANI) and polyacetylene (PA) chains by considering various geometric polymer mixture configurations. The molecular simulations reveal that an increase in the interfacial area available for transverse interactions between dissimilar chains enhances atomic interactions that are orthogonal to the heat transfer direction. As transverse collisions between PA and PANI chains are enhanced, the motion of longitudinal phonons is disrupted, impeding thermal transport. This enhances phonon scattering and reduces longitudinal thermal transport. While there is a nonlinear decrease in the phonon thermal conductivity with increasing interfacial contact area, there is a corresponding linear growth in the nonbonded interaction energies between the different polymers. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4776676]en
dc.format.mimetypeapplication/pdfen
dc.identifier.citationPal, Souvik; Balasubramanian, Ganesh; Puri, Ishwar K., "Reducing thermal transport in electrically conducting polymers: Effects of ordered mixing of polymer chains," Appl. Phys. Lett. 102, 023109 (2013); http://dx.doi.org/10.1063/1.4776676en
dc.identifier.doihttps://doi.org/10.1063/1.4776676en
dc.identifier.issn0003-6951en
dc.identifier.urihttp://hdl.handle.net/10919/24938en
dc.identifier.urlhttp://scitation.aip.org/content/aip/journal/apl/102/2/10.1063/1.4776676en
dc.language.isoen_USen
dc.publisherAIP Publishingen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectMolecular dynamicsen
dc.subjectPolyacetyleneen
dc.subjectPhysicsen
dc.titleReducing thermal transport in electrically conducting polymers: Effects of ordered mixing of polymer chainsen
dc.title.serialApplied Physics Lettersen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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