Annealing

{
  "id": "MLC-T-CHM-000623",
  "term": "Annealing",
  "field": "Chemistry",
  "definition": "A heat treatment that holds a solid polymer at one temperature, or on a changing profile, short of complete melting or dissolution, in order to improve its structure and properties. For a semicrystalline polymer it is carried out just below the melting point, which perfects existing crystallites, raises crystallinity and can convert them to more stable polymorphs. A glassy amorphous polymer is annealed slightly below its glass transition temperature to relieve internal stress.",
  "subject": "Polymer",
  "references": [
    "PAC, 2020, 92, 1861. 'Terminology of polymers in advanced lithography (IUPAC Recommendations 2020)' on page 1867 (https://doi.org/10.1515/pac-2018-1215)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/annealing/"
}