Reversible Addition-Fragmentation Chain Transfer (RAFT) polymerization [1] originally discovered at our CSIRO laboratories in 1998 is conducted simply by the addition ofa thiocarbonylthio compound (RAFT asent) to an otherwise conventional radical polymerization.The RAFT process arguably is the most versatile method for providing living characteristics to radical polymerization.With appropriate selection ofthe RAFT agent and reaction conditions it is applicable to the majority of monomers subject to radical polymerization.The process can be used to synthesize well-defined homo-, gradient, diblock, triblock and star polymers as well as more complex architectures such as microgels and polymer brushes [2].