Alpha relaxation peak

{
  "id": "MLC-T-CHM-000446",
  "term": "Alpha relaxation peak",
  "field": "Chemistry",
  "definition": "The highest temperature relaxation peak observed in dynamic mechanical analysis of polymers, typically associated with the glass transition. This peak corresponds to large-scale cooperative movements of polymer chain segments. It is distinct from secondary relaxation peaks, such as beta or gamma relaxations, which occur at lower temperatures.",
  "synonyms": [
    "α-loss peak",
    "α-relaxation peak",
    "alpha loss peak"
  ],
  "subject": "Polymer",
  "see_also": [
    "secondary relaxation temperature",
    "beta relaxation peak",
    "gamma relaxation peak",
    "loss curve",
    "secondary relaxation peak"
  ],
  "references": [
    "PAC, 2013, 85, 1017. 'Glossary of terms relating to thermal and thermomechanical properties of polymers (IUPAC Recommendations 2013)' on page 1018 (https://doi.org/10.1351/PAC-REC-12-03-02)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/alpha-relaxation-peak/"
}