Reversible-addition-fragmentation chain-transfer polymerization
Term · Chemistry · MLC-T-CHM-013503
A type of reversible-deactivation radical polymerization in which control over the molecular weight and dispersity is achieved through a degenerative chain-transfer process. Propagating radicals react with a chain-transfer agent, known as a RAFT agent, via an addition-fragmentation mechanism, creating a dormant species and a new radical. The process relies on thiocarbonylthio compounds, such as dithioesters or trithiocarbonates, as the chain-transfer agents.
| Identifier | MLC-T-CHM-013503 |
|---|---|
| Field | Chemistry |
| Subject | Polymer |
| Synonyms | RAFT polymerization |
| References | PAC, 2022, 94, 1093. 'Terminology for chain polymerization (IUPAC Recommendations 2021)' on page 1113 (https://doi.org/10.1515/pac-2020-1211) |
| See also | Degenerative chain-transfer radical polymerization; Reversible-addition-fragmentation chain-transfer agent; Chain activation; Chain deactivation; Degenerative chain transfer; Initiating species |
Record as JSON
{
"id": "MLC-T-CHM-013503",
"term": "Reversible-addition-fragmentation chain-transfer polymerization",
"field": "Chemistry",
"definition": "A type of reversible-deactivation radical polymerization in which control over the molecular weight and dispersity is achieved through a degenerative chain-transfer process. Propagating radicals react with a chain-transfer agent, known as a RAFT agent, via an addition-fragmentation mechanism, creating a dormant species and a new radical. The process relies on thiocarbonylthio compounds, such as dithioesters or trithiocarbonates, as the chain-transfer agents.",
"synonyms": [
"RAFT polymerization"
],
"subject": "Polymer",
"see_also": [
"degenerative chain-transfer radical polymerization",
"reversible-addition-fragmentation chain-transfer agent",
"chain activation",
"chain deactivation",
"degenerative chain transfer",
"initiating species"
],
"references": [
"PAC, 2022, 94, 1093. 'Terminology for chain polymerization (IUPAC Recommendations 2021)' on page 1113 (https://doi.org/10.1515/pac-2020-1211)"
],
"url": "https://mlchart.com/terminology/chemistry/reversible-addition-fragmentation-chain-transfer-polymerization/"
}
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