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Pressure dependence of the thermal conductivity, thermal diffusivity, and specific heat of some polymers
Umeå University, Faculty of Science and Technology, Physics.
Umeå University, Faculty of Science and Technology, Physics.
1975 (English)In: Journal of Polymer Science Polymer Physics Edition, ISSN 1542-9385, Vol. 13, no 2, 243-251 p.Article in journal (Refereed) Published
Abstract [en]

The pressure dependence of the specific heat of poly(methyl methacrylate), polystyrene, and atactic and isotactic polypropylene was determined from simultaneous measurements of thermal conductivity and diffusivity in a cylindrical geometry at 300°K and in the pressure range 0-37 kbar. The thermal conductivity and the diffusivity both increase strongly with pressure, while the specific heat decreases. The pressure dependencies are most pronounced at low pressures. The results are compared with other experimental results and with theoretical calculations.

Place, publisher, year, edition, pages
1975. Vol. 13, no 2, 243-251 p.
Keyword [en]
Thermal conductivity, high pressure, polymers, thermal diffusivity, specific heat capacity, PMMA, poly(methyl methacrylate), polystyrene, atactic polypropylene, isotactic polypropylene
National Category
Condensed Matter Physics
Research subject
URN: urn:nbn:se:umu:diva-22276DOI: 10.1002/pol.1975.180130202OAI: diva2:214272
Available from: 2009-05-04 Created: 2009-05-04 Last updated: 2009-12-11

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Sundqvist, Bertil
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Condensed Matter Physics

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