Initializer

{
  "id": "MLC-T-CHM-005867",
  "term": "Initializer",
  "field": "Chemistry",
  "definition": "The starting initiator or chain-transfer agent of a reversible-deactivation polymerization, the small molecule that adds the first monomer units and thereby becomes a macroinitiator or macro-transfer agent. An alkyl halide in atom-transfer radical polymerization and a thiocarbonylthio compound in RAFT polymerization are examples. It is not the same as the macroinitiator that results, which already carries a polymer chain.",
  "subject": "Polymer",
  "see_also": [
    "reversible-addition-fragmentation chain-transfer agent",
    "reversible-addition-fragmentation chain-transfer polymerization",
    "aminoxyl-mediated radical polymerization",
    "atom-transfer radical polymerization",
    "reversible-deactivation polymerization",
    "chain-transfer agent"
  ],
  "references": [
    "PAC, 2022, 94, 1093. 'Terminology for chain polymerization (IUPAC Recommendations 2021)' on page 1122 (https://doi.org/10.1515/pac-2020-1211)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/initializer/"
}