Abstract
As a part of a project for glass-formers having various values of fragility, molecular dynamics of a glass-forming material 3,3-dimethyl-1-butanol has been presented on the basis of the dielectric relaxation studies. Three characteristic relaxations were observed. To provide thermodynamic aspects of this material, adiabatic heat-capacity calorimetry has also been performed in the (13 to 302) K temperature range. The stable crystal of this material melts at T m = 235.7 K. When the material is rapidly cooled at a rate greater than 5 K min −1, the liquid is easily super-cooled and eventually transformed to a glassy state. Standard thermodynamic quantities are evaluated for both the stable crystalline and the glassy states. Structural relaxation processes are discussed in relation to the phase behaviour revealed by the calorimetry.
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