Constitutional heterogeneity

{
  "id": "MLC-T-CHM-002469",
  "term": "Constitutional heterogeneity",
  "field": "Chemistry",
  "definition": "The variation in constitution from one macromolecule to another in a polymer whose molecules all have the same elemental composition, for example a mixture of linear and branched chains, or a statistical copolymer made of two isomeric units. It differs from compositional heterogeneity, where the elemental composition itself varies between molecules.",
  "subject": "Polymer",
  "see_also": [
    "constitution",
    "isomeric",
    "statistical copolymer"
  ],
  "references": [
    "Purple Book, 1st ed., p. 52 (http://old.iupac.org/publications/books/author/metanomski.html)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/constitutional-heterogeneity/"
}