Twinned polymer crystal

{
  "id": "MLC-T-CHM-012368",
  "term": "Twinned polymer crystal",
  "field": "Chemistry",
  "definition": "A polymer crystal composed of two or more individual crystals that are intergrown in a symmetrical fashion, sharing some lattice points or planes. This intergrowth occurs in a specific crystallographic orientation, resulting in a composite structure with distinct boundaries between the individual crystal components. The twinning operation relates the orientations of the individual crystals.",
  "subject": "Polymer",
  "see_also": [
    "crystal polymorph",
    "polymer single crystal"
  ],
  "references": [
    "PAC, 2011, 83, 1831. 'Definitions of terms relating to crystalline polymers (IUPAC Recommendations 2011)' on page 1859 (https://doi.org/10.1351/PAC-REC-10-11-13)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/twinned-polymer-crystal/"
}