Effect of the Configuration of the Active Center on Comonomer Reactivities: The Case of ε‐Caprolactone/ l,l‐Lactide Copolymerization

Pick your polymer: The reactivity ratios, r, of the comonomers can be controlled by the configuration of the active species in the copolymerization of ε-caprolactone (CL) and l,l-lactide (LA; see scheme). Thus, by varying the configuration of the initiator, a broad spectrum of copolymers with different microstructures, from gradient to more random, can be prepared in a controlled way.