Weba material’s heat capacity and enthalpy changes can be used to estimate how efficiently your process is operating. For these reasons, DSC is the most common thermal analysis technique and is found in many analytical, process control, quality assurance and R&D laboratories. Q What is the difference between a heat flow and a heat flux DSC? WebDifferential scanning calorimetry (DSC) is a technique used to investigate the response of polymers to heating. DSC can be used to study the melting of a crystalline polymer or glass transition. The rate of temperature change for a given amount of …

Interpreting Unexpected Events and Transitions in DSC Results

WebFig.2. Schematic of power-compensation DSC. Fig. 3. An example of a DSC thermogram showing the portion of the total reaction, as measured by the enthalpic exotherm, reacted at time t. To determine the extent of a curing reaction or the degree of cure α the change in enthalpy is compared to the total change in enthalpy of the WebThe most extensively employed method in the literature for calculating the percent crystallinity from DSC results is through normalization of the enthalpy of fusion (ΔHf) to the enthalpy of ... clearviewportal

Sustainability Free Full-Text Numerical Analysis of Sulfamerazine ...

WebThe enthalpy ΔH(T) DSC and entropy ΔS(T) DSC are evaluated model-independently with eqs 2 and 3 and have sigmoidal shapes (Figure 1B,C). The free energy Δ G ( T ) DSC ( eq 4 ) of the native protein is zero, is slightly negative in the initial phase of unfolding, and decreases rapidly beyond the midpoint temperature T m = 62 °C ( Figure 1 D). WebAs described in the DSC Overview Note, analyzing the stability of a protein in dilute solution involves determining changes in the partial molar heat capacity of the protein at constant pressure (∆C p). The change in heat capacity of a compound refl ects its ability to absorb heat and experience a defi ned increase in temperature. clearview portable ocr