Highly sensitive pseudo-differential ac-nanocalorimeter for the study of the glass transition
作者： Mohcine Laarraj , Rahma Adhiri , Said Ouaskit , Mohamed Moussetad , Christophe Guttin
DOI: 10.1063/1.4935491
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摘要: We present a nanocalorimeter designed for the measurement of dynamic heat capacity thin films. The microfabricated sensor, thermal conditioning as well highly stable and low noise electronic chain allow measurements real imaginary parts complex specific with resolution Δ C/C about 10−5. performances this quasi-differential were tested on model polymeric glass-former, polyvinyl acetate (PVAc). high stability device are essential accurate studies non-equilibrium slow relaxing systems such glasses.
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