Configurational disorder

{
  "id": "MLC-T-CHM-002405",
  "term": "Configurational disorder",
  "field": "Chemistry",
  "definition": "A structural disorder in a polymer crystal in which different configurational repeating units, for example units of opposite configuration, occupy equivalent lattice positions in a statistical mixture. It is a property of the crystal, not the stereoirregularity of a single chain. It is one of several crystal disorder types, listed beside conformational disorder, where identical units adopt different conformations, and chain-orientational disorder.",
  "subject": "Polymer",
  "see_also": [
    "structural disorder",
    "crystallization"
  ],
  "references": [
    "Purple Book, 1st ed., p. 80 (http://old.iupac.org/publications/books/author/metanomski.html)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/configurational-disorder/"
}