Tie molecule

{
  "id": "MLC-T-CHM-012058",
  "term": "Tie molecule",
  "field": "Chemistry",
  "definition": "A polymer chain that connects two or more crystalline lamellae or crystalline regions within a semicrystalline polymer. These molecules typically originate from one lamella, pass through an amorphous region, and then re-enter another lamella or fold back into the same lamella. Tie molecules contribute significantly to the mechanical strength and toughness of semicrystalline polymers.",
  "subject": "Polymer",
  "references": [
    "Purple Book, 1st ed., p. 83 (http://old.iupac.org/publications/books/author/metanomski.html)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/tie-molecule/"
}