Nature materials, 2015-03, Vol.14 (3), p.295-300
2015
Volltextzugriff (PDF)
Details
- Autor(en) / Beteiligte
- Titel
- High thermal conductivity in amorphous polymer blends by engineered interchain interactions
- Ist Teil von
- Nature materials, 2015-03, Vol.14 (3), p.295-300
- Ort / Verlag
- England: Nature Publishing Group
- Erscheinungsjahr
- 2015
- Quelle
- Alma/SFX Local Collection
- Beschreibungen/Notizen
- Thermal conductivity is an important property for polymers, as it often affects product reliability (for example, electronics packaging), functionality (for example, thermal interface materials) and/or manufacturing cost. However, polymer thermal conductivities primarily fall within a relatively narrow range (0.1-0.5 W m(-1) K(-1)) and are largely unexplored. Here, we show that a blend of two polymers with high miscibility and appropriately chosen linker structure can yield a dense and homogeneously distributed thermal network. A sharp increase in cross-plane thermal conductivity is observed under these conditions, reaching over 1.5 W m(-1) K(-1) in typical spin-cast polymer blend films of nanoscale thickness, which is approximately an order of magnitude larger than that of other amorphous polymers.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 1476-1122eISSN: 1476-4660DOI: 10.1038/nmat4141Titel-ID: cdi_osti_scitechconnect_1168369
- Format
- –
- Schlagworte
- Blends, Conductivity, Electronics packaging, Heat, Heat transfer, Manufacturing costs, Miscibility, Nanostructure, Networks, Polymer blends, Polymers, solar (photovoltaic), solar (thermal), phonons, thermal conductivity, thermoelectric, electrodes - solar, defects, charge transport, materials and chemistry by design, optics, synthesis (novel materials), synthesis (self-assembly), Studies, Thermal conductivity, Thin films