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The document analyzes isotactic and amorphous polypropylene using differential scanning calorimetry (DSC). DSC showed that the amorphous sample was not completely pure as it exhibited both first-order and second-order phase transitions, including crystallization, with an enthalpy of 13.22 J/g. The isotactic sample had a higher degree of crystallinity at 41.2% and enthalpy of 85.32 J/g. The entropy of the glass transition for amorphous polypropylene was calculated to be 1.58 J/mol-K, while the entropy of cry

Author

JellyShapes

Language

EN