Origin of high thermal conductivity in disentangled ultra-high molecular weight polyethylene films: ballistic phonons within enlarged crystals

Oriented polymers may exhibit high thermal conductivity, but the upper limits remain unclear. Here, the authors show that heat-carrying phonons scatter primarily from crystalline domain boundaries in disentangled polyethylene films.

Bibliographic Details
Main Authors: Taeyong Kim, Stavros X. Drakopoulos, Sara Ronca, Austin J. Minnich
Format: Article
Language:English
Published: Nature Portfolio 2022-05-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-022-29904-2
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author Taeyong Kim
Stavros X. Drakopoulos
Sara Ronca
Austin J. Minnich
author_facet Taeyong Kim
Stavros X. Drakopoulos
Sara Ronca
Austin J. Minnich
author_sort Taeyong Kim
collection DOAJ
description Oriented polymers may exhibit high thermal conductivity, but the upper limits remain unclear. Here, the authors show that heat-carrying phonons scatter primarily from crystalline domain boundaries in disentangled polyethylene films.
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spelling doaj.art-8dac7753ffbe442f8e5868c30de5b5222022-12-22T00:44:58ZengNature PortfolioNature Communications2041-17232022-05-011311910.1038/s41467-022-29904-2Origin of high thermal conductivity in disentangled ultra-high molecular weight polyethylene films: ballistic phonons within enlarged crystalsTaeyong Kim0Stavros X. Drakopoulos1Sara Ronca2Austin J. Minnich3Division of Engineering and Applied Science, California Institute of TechnologyDepartment of Materials, Loughborough UniversityDepartment of Materials, Loughborough UniversityDivision of Engineering and Applied Science, California Institute of TechnologyOriented polymers may exhibit high thermal conductivity, but the upper limits remain unclear. Here, the authors show that heat-carrying phonons scatter primarily from crystalline domain boundaries in disentangled polyethylene films.https://doi.org/10.1038/s41467-022-29904-2
spellingShingle Taeyong Kim
Stavros X. Drakopoulos
Sara Ronca
Austin J. Minnich
Origin of high thermal conductivity in disentangled ultra-high molecular weight polyethylene films: ballistic phonons within enlarged crystals
Nature Communications
title Origin of high thermal conductivity in disentangled ultra-high molecular weight polyethylene films: ballistic phonons within enlarged crystals
title_full Origin of high thermal conductivity in disentangled ultra-high molecular weight polyethylene films: ballistic phonons within enlarged crystals
title_fullStr Origin of high thermal conductivity in disentangled ultra-high molecular weight polyethylene films: ballistic phonons within enlarged crystals
title_full_unstemmed Origin of high thermal conductivity in disentangled ultra-high molecular weight polyethylene films: ballistic phonons within enlarged crystals
title_short Origin of high thermal conductivity in disentangled ultra-high molecular weight polyethylene films: ballistic phonons within enlarged crystals
title_sort origin of high thermal conductivity in disentangled ultra high molecular weight polyethylene films ballistic phonons within enlarged crystals
url https://doi.org/10.1038/s41467-022-29904-2
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