Nitroxide-mediated radical polymerization
Nitroxide-mediated radical polymerization is a method of radical polymerization that makes use of an nitroxide initiator to generate polymers with well controlled stereochemistry and a very low dispersity. It is a type of reversible-deactivation radical polymerization.
Source: Wikipedia — Nitroxide-mediated radical polymerization (CC BY-SA 4.0)