Anticlined stems

{
  "id": "MLC-T-CHM-000670",
  "term": "Anticlined stems",
  "field": "Chemistry",
  "definition": "Chain stems in a polymer crystal whose side groups face opposite ways relative to the chain axis, so neighbouring stems are related by a reversal of side-group direction. Stems in which the side groups face the same way are isoclined. Anticlined stems are found in crystalline poly(alpha-olefins) and in regioregular poly(3-alkylthiophenes).",
  "subject": "Polymer",
  "see_also": [
    "antidirectional packing",
    "directional chain",
    "isoclined stems",
    "isodirectional packing"
  ],
  "references": [
    "PAC, 2011, 83, 1831. 'Definitions of terms relating to crystalline polymers (IUPAC Recommendations 2011)' on page 1844 (https://doi.org/10.1351/PAC-REC-10-11-13)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/anticlined-stems/"
}