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Thermodynamic Study of the Glass Relaxation Phenomena. DSC study of annealing of maltitol glass

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Abstract

A thermodynamic study of the influence of the thermal treatments (annealing), below the glass transition temperature, on the thermal behavior and enthalpy of maltitol glass was carried out by differential scanning calorimetry (DSC). An enthalpic effect (exothermal) produced by the isothermal treatment of the quenched glass was found and measured.

The origin of the thermal effect was assigned to a physicochemical transformation of molecular associations in the solid (glass).

To achieve a correct description of the thermodynamic functions of glasses, another parameter, in addition to T and P, is introduced, namely the degree of advance of the above mentioned transformation.

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Claudy, P., Siniti, M. & El Hajri, J. Thermodynamic Study of the Glass Relaxation Phenomena. DSC study of annealing of maltitol glass. Journal of Thermal Analysis and Calorimetry 68, 251–264 (2002). https://doi.org/10.1023/A:1014973719280

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