Persistence length

{
  "id": "MLC-T-CHM-008682",
  "term": "Persistence length",
  "field": "Chemistry",
  "definition": "A measure of the stiffness or rigidity of a polymer chain, representing the characteristic length over which the direction of the polymer chain remains correlated. For a worm-like chain model, it is the length over which the tangent to the chain at one point becomes uncorrelated with the tangent at another point. A larger persistence length indicates a stiffer polymer chain.",
  "subject": "Polymer",
  "see_also": [
    "chain length",
    "worm-like chain"
  ],
  "references": [
    "Purple Book, 1st ed., p. 51 (http://old.iupac.org/publications/books/author/metanomski.html)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/persistence-length/"
}