A) Draw the expected DSC graph for a semicrystalline polymer heated from 25-300°C at 5°C/min with the following properties:
• % crystallinty of initial sample = 25%
• Heat capacity of the polymer generally decreases between room temperature and Tg
• Tg = 120°C
• There is a small amount of enthalpic recovery
• The sample’s heat capacity is constant above Tg
• Cold crystallization occurs between 140-150°C and adds 25% crystallinity to the sample
• The sample melts between 200-220°C
• The sample begins to degrade via an exothermic reaction at 270°C
• The heat of crystallization of a perfect crystal of this polymer is 100 J/g
For your answer, you should draw a graph and label the axes with appropriate quantities and units (the X axis should be temperature). Draw the expected response and use arrows and/or other annotation to illustrate the various features. Include as much detail as possible.