Cistactic polymer

{
  "id": "MLC-T-CHM-002091",
  "term": "Cistactic polymer",
  "field": "Chemistry",
  "definition": "A tactic polymer with double bonds in its main chain that all have the cis geometry, as in cis-1,4-polyisoprene or cis-1,4-polybutadiene made by stereoselective polymerization of dienes. The term concerns the geometry of in-chain double bonds, not the side of the chain on which substituents lie, which is what isotactic and syndiotactic describe. Its counterpart with all-trans double bonds is the transtactic polymer.",
  "subject": "Polymer",
  "see_also": [
    "cis conformation",
    "configurational base unit",
    "tactic polymer"
  ],
  "references": [
    "Purple Book, 1st ed., p. 33 (http://old.iupac.org/publications/books/author/metanomski.html)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/cistactic-polymer/"
}