6533b85bfe1ef96bd12bb4fd
RESEARCH PRODUCT
Capacitive scanning dilatometry and frequency-dependent thermal expansion of polymer films
Hans SillescuRanko RichertDieter NeherRoland BöhmerC. BauerS. Moreno-floressubject
Materials sciencePolarity (physics)Capacitive sensingInstitut für Physik und AstronomieTemperature cycling530Thermal expansionchemistry.chemical_compoundPolybutadienechemistryThermomechanical analysisPolystyreneComposite materialGlass transitioninfo:eu-repo/classification/ddc/530description
The dilatometric properties of polymer films near and above their glass-transition temperatures were explored using capacitive high-frequency detection in temperature ramping as well as in harmonic temperature cycling experiments. The broad applicability of capacitive scanning dilatometry is demonstrated by the investigation of macromolecular systems of vastly different polarity such as polystyrene, polybutadiene, and polyvinylacetate. From temperature cycling experiments the real and imaginary parts of the frequency-dependent thermal-expansion coefficient are determined in the sub-Hz regime.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2000-01-01 | Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics |