Degree of crystallinity

{
  "id": "MLC-T-CHM-002944",
  "term": "Degree of crystallinity",
  "field": "Chemistry",
  "definition": "The mass fraction of a polymer sample that exists in a crystalline state, as opposed to an amorphous state. This value is determined by comparing the enthalpy of fusion of the sample to that of a perfectly crystalline polymer of the same type. It is typically expressed as a percentage or a decimal between 0 and 1.",
  "subject": "Polymer",
  "see_also": [
    "calorimetry",
    "crystallinity",
    "diffraction",
    "infrared",
    "mass fraction",
    "spectroscopy",
    "volume fraction"
  ],
  "references": [
    "Purple Book, 1st ed., p. 75 (http://old.iupac.org/publications/books/author/metanomski.html)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/degree-of-crystallinity/"
}