Coordination-addition polymerization

{
  "id": "MLC-T-CHM-002562",
  "term": "Coordination-addition polymerization",
  "field": "Chemistry",
  "definition": "A coordination polymerization of alpha,beta-unsaturated esters or amides, such as methacrylates, in which each growth step is the coordination of the monomer to a metal center followed by Michael-type addition of the metal-bound enolate chain end to it. Lanthanocene and other early-metal catalysts that polymerize methyl methacrylate this way can give stereoregular poly(methyl methacrylate) of narrow dispersity. It differs from coordination-insertion polymerization of olefins, where the monomer inserts into a metal-carbon bond.",
  "subject": "Polymer",
  "see_also": [
    "coordination polymerization"
  ],
  "references": [
    "PAC, 2022, 94, 1093. 'Terminology for chain polymerization (IUPAC Recommendations 2021)' on page 1136 (https://doi.org/10.1515/pac-2020-1211)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/coordination-addition-polymerization/"
}