chain-walking polymerization

initialism: CWP
https://doi.org/10.1351/goldbook.09002
Coordination polymerization in which the chain carrier migrates along the formed polymer chain through a series of \(\ce{\upbeta {-}hydrogen}\) eliminations and reinsertions with inversion of stereochemistry.

Note 1: In contrast to classical coordination polymerizations, which provide linear polyethylene, CWP of ethylene leads to a branched polymer.

Note 2: CWP of \(\ce{\upbeta {-}olefins}\) generally leads to less branched polymers than those formed by classical coordination polymerization.

Examples: Aryl-substituted α-diimine-palladium(II) complexes.

Source:
PAC, 2022, 94, 1093. (Terminology for chain polymerization (IUPAC Recommendations 2021)) on page 1138 [Terms] [Paper]