group-transfer polymerization

initialism: GTP

https://doi.org/10.1351/goldbook.08910

Chain polymerization in which a specific atom or group is intramolecularly transferred to remain associated with the active chain-end during the course of polymerization.

Notes:

Group-transfer polymerization is most often a reversible-deactivation polymerization or a coordination addition polymerization.
The term group-transfer polymerization is often specifically associated with polymerization of (meth)acrylates and acrylamides initiated by silyl ketene acetals such as 1-methoxy-2-methyl-1-(trimethylsiloxy)prop-1-ene (traditional name is methyl trimethylsilyl dimethylketene acetal) and catalysed by nucleophiles.
Other forms of chain polymerization commonly referred to as group-transfer polymerizations include catalyst-transfer polymerization and rare-earth-mediated or lanthanide-mediated coordination polymerization.

See also: rare-earth-mediated coordination-addition polymerization, anionic group-transfer polymerization, catalyst-transfer polymerization

Source:
PAC, 2022, 94, 1093. 'Terminology for chain polymerization (IUPAC Recommendations 2021)' on page 1100 (https://doi.org/10.1515/pac-2020-1211)