Reversible deactivation radical polymerization RDRP

For this section we use the lUPAC recommended term reversible deactivation radical polymerization (RDRP). Termination is present in all of the polymerizations described, even though many polymerizations display many of the observable characteristics normally associated with living polymerization. 

Other language has been used to describe this process. Indeed many authors have intermittently used other names/abbrevia-tions for reactions utilizing the same components to clarify specific aspects of the reaction. " This multiplicity of nomenclature may have aeated confusion as to the fundamental similarity, or indeed identical nature of the reactions being discussed. A recent recommendation by lUPAC clarifies this position by recommending that specific reversible-deactivation radical polymerizations (RDRPs) should adopt terminology consistent with that in lUPAC documents, specifically that the controlled RDRP procedures in which the deactivation of the radicals involves catalyzed reversible atom transfer or reversible group transfer usually, though not exclusively, by transition metal complexes be named atom transfer radical polymerization, ATRP. °... 

Controlled radical polymerizations (also called reversible-deactivation radical polymerization, RDRP, according to lUPAC recommendations) offer a unique way to modulate polymeric materials at the molecular level. By exploiting a dormant state of the propagating macroradical, the fraction of irreversibly terminated species... 

Polymerization with reversible addition-fragmentation chain transfer (RAFT) is a reversible deactivation radical polymerization (RDRP) a process which, with appropriate attention to reagents and reaction conditions, can possess the attributes usually associated with living polymerization. These processes are also often called hving radical polymerizations or controlled radical polymerizations. However, the use of these terms in this context is now discouraged. ... 

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