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Dynamic DSC Software —Temperature-Modulated DSC—

Summer 2021 Volume 37, No. 2
42-45
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Differential scanning calorimetry (DSC) is a thermal analysis technique that measures the change in heat capacity of a sample, or endothermic/exothermic reactions, based on the difference in temperature between a sample and a reference material that are both heated/ cooled at a predetermined constant rate. This technique is widely used to study the thermal information of materials such as glass transition temperature, reaction temperature (e.g. crystallization, melting), and reaction energy. In contrast to conventional DSC, there is a thermal analysis technique called “temperature-modulated DSC,” which performs measurements with the addition of temperature-modulating components, such as sine wave and steps, to the constant-rate heating/cooling process. After the release of ISO (ISO-19935-2) “Plastics-Temperature-modulated DSC” in 2020, this measurement method will likely become widespread. Therefore, Rigaku has developed a control algorithm and the Dynamic DSC Analysis software that uses sine waves as a temperature modulating component.

 

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