The glass transition and the glassy stat
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Rehage, GΓΌnther ;Frenzel, JΓΌrgen
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Article
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1982
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Wiley (John Wiley & Sons)
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English
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## Abstract PVTβmeasurements on atactic polystyrene shows that the Ehrenfest equations, which describe a thermodynamic transformation of the second order, are not applicable for the glass transition. The introduction of one internal ordering parameter ΞΆ in addition to the conventional variables T a