Reversible addition−fragmentation chain-transfer polymerization

Reversible addition−fragmentation chain transfer or RAFT polymerization is one of several kinds of reversible deactivation radical polymerization. It makes use of a chain transfer agent (CTA) in the form of a thiocarbonylthio compound (or similar, from here on referred to as a RAFT agent, see Figure 1) to afford control over the generated molecular weight and dispersity during a free-radical polymerization.

Source: Wikipedia — Reversible addition−fragmentation chain-transfer polymerization (CC BY-SA 4.0)