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Differential scanning calorimetry (DSC) is a thermoanalytical technique that measures the difference in heat flow between a sample and a reference as a function of temperature. It is widely used in the characterization of materials, such as polymers, metals, and pharmaceuticals, and can provide information about a material's thermal properties, such as its melting point, crystallization temperature, and glass transition temperature. DSC can also be used to study the kinetics of chemical reactions and to determine the enthalpy and entropy changes associated with those reactions.