Skip to main content

Questions tagged [differential-scanning-calorimetry]

This tag should be applied to questions regarding the theory and application of differential scanning calorimetry (DSC).

6 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
3 votes
0 answers
32 views

Isothermal Titration Calorimetry (ITC) to Determine the Critical Micelle Concentration (CMC) of Surfactans

Lately I found a paper from Smith et al. (2022), where isothermal titration calorimetry (ITC) was used to determine the critical micelle concentration (CMC) of different surfactants. However, as I am ...
PotatoOwl's user avatar
3 votes
0 answers
570 views

How to use DSC to differentiate first and second order phase transition?

The DSC trace below was recorded for a thermotropic calamitic liquid crystal. The heating rate was 5 $^\text{o}$C min$^{-1}$; a heating scan is followed by a cooling scan. Based on the previously ...
TheLearner's user avatar
  • 1,241
2 votes
0 answers
318 views

Why is there no exothermic crystallization peak visible during cooling of PLA and no endothermic melting peak visible during a second heating of PLA?

I am doing lab research on DSC measurement (Heat-cool-heat) for understanding melting characteristics of polymers (PLA, PA6 and PE). During cooling i saw exothermic peak and during second heating i ...
Roshan Timsina's user avatar
2 votes
0 answers
69 views

Is Polymorphism accompanied with an energy change?

Differential Scanning Colorimetry (DSC) is a technique used to identify Polymorphism by revealing two melting points of a pure crystalline structure. DSC shows a peak associated with the formation ...
Snfkn's user avatar
  • 21
1 vote
0 answers
215 views

Correctness of DSC curve for polyamid or polyester

I did a DSC on a part of an alternator car belt. We already found out that it should by a polyester or a polyamid. But then we got the following DSC curve: How is it possible that the glass ...
Ayoub Rossi's user avatar
0 votes
0 answers
58 views

Endothermic peak in DSC

I have an endothermic peak, with no mass loss and no change in (organic) crystal structure (monitored by vt-pxrd). What can cause such effect? Also, excluding the options of impurities or instrumental ...
tps475's user avatar
  • 9