Could the heat capacity change with temperature of a liquid crystal sample be determined from its DSC curve?
Yes, but the DSC run has to be done in a specific way. See, for example, https://www.researchgate.net/post/Can_anybody_suggest_me_how_to_determine_the_specific_heat_capacity_cp_for_rice_flour_by_DSC
Most of DSCs are Heat-Flux type calorimeter that are not designed to measure heat capacity, but phase transition. There are many instructions how to measure heat capacity on HF DSC, but the results can have errors of tens of percent no matter how much effort you put into. Simply, the DSC baselines are not reproducible enough to make the standard three-run procedure working. Slightly different is the situation for power-compensation calorimeters, where the three run procedure can yield in results with uncertainty less than 10% or even 5%. (after a thorough calibration and testing of the methodology).
I strongly recommend the book "Thermal Analysis" by Prof. Bernhard Wunderlich. You can find a answer.
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