Article ID Journal Published Year Pages File Type
675369 Thermochimica Acta 2008 4 Pages PDF
Abstract

Two waxes, a soft petroleum wax and a hard Fischer–Tropsch paraffin wax, have been investigated to find the reasons for multiple endothermic peaks observed during heating in a DSC. DSC curves, molar mass distribution curves, and variable-temperature XRD results were compared, and it was confirmed that the first endothermic peak for the soft petroleum wax was due to a solid–solid transition, while the second endothermic peak was due to melting. However, for the hard Fischer–Tropsch paraffin wax there was no evidence of a solid–solid transition, and it was concluded that the multiple endothermic peaks in this case were due to melting of different molar mass fractions.

Related Topics
Physical Sciences and Engineering Chemical Engineering Fluid Flow and Transfer Processes
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