The transformation of the chains in the amorphous sulphur was investigated by calorimetric method at the temperature range from 288 to 303 K. The results satisfy the equationX=1−exp [−(kt)2] (X-transformation degree,t—time,k andz—constants). It was found that thez values increasevs. the temperature The activation energy is equal toE=21 kJ/mol with standard deviation 5 kJ/mol. The results were explained on the basis of the theory of the nucleation and the growth of the nuclei.
|Journal of Thermal Analysis and Calorimetry|
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