DSC - Differential Scanning Calorimetry Exam Questions
with Correct Answers 2026 Update
What are the two physical phases of polymers? - CORRECT ANSWER -- amorphous
- crystalline
What does DSC measure? - CORRECT ANSWER -DSC measures the phase transitions with
changes in temperature
4 Main groups that define polymer architecture: - CORRECT ANSWER -1. rotation around bonds
2. chain flexibility
3. attraction between chains
4. fit
Tg = (exotherm/endotherm and what happens?) - CORRECT ANSWER -the glass transition
temperature (endotherm)
- amorphous chains below Tg are locked and there is only movement at the atomic level
-above Tg, there is segmental polymer movement
Tm = (exotherm/endotherm and what happens?) - CORRECT ANSWER -the melting temperature
(endotherm)
- lamella/crystalline chains are displaced and become amorphous
Tc = (exotherm/endotherm and what happens?) - CORRECT ANSWER -the crystallization
temperature (exotherm)
- temperature where lamella can form (some polymers can't do this)
with Correct Answers 2026 Update
What are the two physical phases of polymers? - CORRECT ANSWER -- amorphous
- crystalline
What does DSC measure? - CORRECT ANSWER -DSC measures the phase transitions with
changes in temperature
4 Main groups that define polymer architecture: - CORRECT ANSWER -1. rotation around bonds
2. chain flexibility
3. attraction between chains
4. fit
Tg = (exotherm/endotherm and what happens?) - CORRECT ANSWER -the glass transition
temperature (endotherm)
- amorphous chains below Tg are locked and there is only movement at the atomic level
-above Tg, there is segmental polymer movement
Tm = (exotherm/endotherm and what happens?) - CORRECT ANSWER -the melting temperature
(endotherm)
- lamella/crystalline chains are displaced and become amorphous
Tc = (exotherm/endotherm and what happens?) - CORRECT ANSWER -the crystallization
temperature (exotherm)
- temperature where lamella can form (some polymers can't do this)
