Non-equilibrium heat capacity of polytetrafluoroethylene at room temperature

Simple item page
dc.creatorGarden, Jean-Luc
dc.creatorRichard, Jacques
dc.creatorGuillou, H.
dc.creatorBourgeois, O.
dc.date2007-06-27
dc.date.accessioned2026-07-07T08:12:42Z
dc.date.available2026-07-07T08:12:42Z
dc.descriptionPolytetrafluoroethylene can be considered as a model for calorimetric studies of complex systems with thermodynamics transitions at ambient temperature. This polymer exhibits two phase transitions of different nature at 292 K and 303 K. We show that sensitive ac-calorimetry measurements allow us to study the thermodynamic behaviour of polytetrafluoroethylene when it is brought out of thermodynamic equilibrium. Thanks to the thermal modelisation of our calorimetric device, the frequency dependent complex heat capacity of this polymer is extracted. The temperature and frequency variations of the real and imaginary parts of the complex heat capacity are obtained when polytetrafluoroethylene undergoes its first-order structural phase transition at 292 K.
dc.identifierhttps://arxiv.org/abs/0706.4050
dc.identifierhttp://arxiv.org/abs/0706.4050
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/132545
dc.subjectSoft Condensed Matter
dc.titleNon-equilibrium heat capacity of polytetrafluoroethylene at room temperature
dc.typetext

Files

Collections

arXiv