Chain folding

{
  "id": "MLC-T-CHM-001841",
  "term": "Chain folding",
  "field": "Chemistry",
  "definition": "A phenomenon observed in crystalline polymers where a polymer chain reverses its direction and re-enters the same crystal lamella, forming a folded structure. This process allows long polymer chains to fit into ordered crystalline regions. The fold length is a characteristic dimension of these lamellar crystals.",
  "subject": "Polymer",
  "references": [
    "Purple Book, 1st ed., p. 83 (http://old.iupac.org/publications/books/author/metanomski.html)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/chain-folding/"
}