{{Short description|Form of addition polymerization initiated with anions}}
[[File:IUPAC definition for anionic polymerization.png|550px|link=https://doi.org/10.1351/goldbook.A00361|thumb|right|alt=IUPAC definition for absorption|[https://doi.org/10.1351/goldbook.A00361 https://doi.org/10.1351/goldbook.A00361].]]
In [[polymer chemistry]], '''Anionicanionic addition polymerization''' is a form of [[chain-growth polymerization]] or addition polymerization that involves the [[polymerization]] of monomers[[monomer]]s initiated with anions[[anion]]s. The type of reaction has many manifestations, but traditionally [[Vinyl group|vinyl]] monomers are used.<ref name=Hsieh>Hsieh, H.;Quirk, R. ''Anionic Polymerization: Principles and practical applications''; Marcel Dekker, Inc.: New York, 1996.</ref><ref name=Quirk>Quirk, R. Anionic Polymerization. In ''Encyclopedia of Polymer Science and Technology''; John Wiley and Sons: New York, 2003.</ref> Often anionic polymerization involves [[living polymerization]]s, which allows control of structure and composition.<ref name="Hsieh"/><ref name="Quirk"/>
