Dynamic thermal expansivity near the glass transition

6533b85dfe1ef96bd12bf2dd

RESEARCH PRODUCT

Dynamic thermal expansivity near the glass transition

Ranko Richert Roland Böhmer C. Bauer Tage Emil Christensen

subject

Capacitive sensing Thermodynamics Temperature cycling Dielectric Condensed Matter Physics 530 Electronic Optical and Magnetic Materials Condensed Matter::Soft Condensed Matter chemistry.chemical_compound Fragility chemistry Thermal Materials Chemistry Ceramics and Composites Relaxation (physics)Polystyrene Glass transition

description

Dielectric techniques were used to investigate the thermal expansivity of polystyrene films. Capacitive scanning dilatometry (CSD) employs temperature ramping in order to monitor the non-linear structural relaxation in the glass transformation range and to quantify liquid fragility. In the linear response regime, the complex thermal expansivity is obtained as a function of the temperature cycling frequency and is observed to reflect the structural relaxation.

year	journal	country	edition	language
2000-02-01

https://dx.doi.org/10.17877/de290r-3190

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