STP1402: Comparison Between Modulated Differential Scanning Calorimetry (MDSC) and Dynamic Differential Scanning Calorimetry (DDSC)

    Fuller, LC
    ATOFINA Chemicals, Inc., King of Prussia, PA

    Judovits, L
    ATOFINA Chemicals, Inc., King of Prussia, PA

    Pages: 12    Published: Jan 2001


    Abstract

    Both modulated differential scanning calorimetry (MDSC) and dynamic differential scanning calorimetry (DDSC) are registered tradenames for instrumental techniques which are part of the temperature-modulated differential scanning calorimetry (TMDSC) family. Both oscillate their input ramps differently in that the MDSC uses a sine wave while DDSC generates a sawtooth wave. Although we have found similarities between both techniques we do note some differences. These differences primarily occur in the melting reversing signal for the same conditions and as one changes period and amplitude. These differences may be ascribed to the different time response as noted between a heat flux and power compensation DSC.

    Keywords:

    differential scanning calorimetry, modulated differential scanning calorimetry, dynamic differential scanning calorimetry, temperature-modulated differential scanning calorimetry, polyvinylidene fluoride, polystyrene


    Paper ID: STP10702S

    Committee/Subcommittee: E37.01

    DOI: 10.1520/STP10702S


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