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[交流] 在非晶态系统中采用DSC量化分析样品老化和机动性:评估分子的流动性

The specific heat capacity (Cp) of amorphous sucrose was determined by DSC after annealing at a particular temperature within the glass transition (Tg) region. The enthalpy recovery after physical aging was obtained from the Cp data through the Tg region after several aging times. This data was fitted to the empirical Williams-Watts equation to obtain values for the mean molecular relaxation time and a parameter for the distribution of relaxation times at the annealing temperature. 
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