igure 1. RAFT Polymerization Schematic.4 The number of chains of each type shown here is not in proportion to that expected for a well-designed experiment. On average, all living chains grow simultaneously and have equal chain length because equilibration of the dormant and active chain ends is rapid with respect to propagation. A RAFT agent is represented as ′ZC(=S)S′. - See more at: http://www.sigmaaldrich.com/technical-documents/articles/material-matters/reversible-addition.html#sthash.qRZ4OvCy.dpuf