Modulated differential scanning calorimetry in the glass transition region. Part III. Evaluation of polystyrene and poly(ethylene tetrephthalate)

Modulated differential scanning calorime

Modulated differential scanning calorimetry in the glass transition region. V. Activation energies and relaxation times of poly(ethylene terephthalate)s

✍ Iwao Okazaki; Bernhard Wunderlich 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 972 KB

Temperature-modulated differential scanning calorimetry is used to evaluate the kinetics of the glass transition from measurement of the first harmonic of the apparent, reversing heat capacity. The data are taken from quasi-isothermal experiments with negligible instrument lag, extrapolated to zero