Ultrafast RAFT-HDA Chemistry

Cyclopentadienyl functionality (Cp) in polymers has not received as much attention in the recent literature as, for example, azides and thiols. Nevertheless, the potential for such materials to form tuneable and reversible linkages holds great promise in the design of various uniquely thermoresponsive materials. There is, however, an inherent difficulty in achieving 

The RAFT-HDA click strategy has certainly been proven to enable highly efficient macromolecular-macromolecular conjugations to be performed under very mild conditions. It also stands as a very rare example within the field of CRP in that the functionality utilized to mediate controlled polymerization is also the same functionality that serves as the click function. As such, the technique may be termed atom economical for this very reason. Furthermore, the reversibility of such chemistry may serve as the inspiration for the development of a variety of thermoresponsive materials. 

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