TY - JOUR AB - Controlling polymer composition starting from mixtures of monomers is an important, but rarely achieved, target. Here a single switchable catalyst for both ring-opening polymeri-zation (ROP) of lactones and ring-opening copolymerization (ROCOP) of epoxides, anhydrides and CO2 is investigated, using both experimental and theoretical methods. Different combinations of four model monomers: -caprolactone, cyclohexene oxide, phthalic anhydride and carbon dioxide are investigated using a single dizinc catalyst. The catalyst switches between the distinct polymerization cycles and shows high monomer selectivity resulting in block sequence control and predictable compositions (esters and car-bonates) in the polymer chain. The understanding gained of the orthogonal reactivity of monomers, specifically con-trolled by the nature of the metal-chain end group, opens the way to engineer polymer block sequences. AU - Romain,C AU - Zhu,Y AU - Dingwall,P AU - Paul,S AU - Rzepa,H AU - Buchard,A AU - Williams,CK DO - 10.1021/jacs.5b13070 EP - 4131 PY - 2016/// SN - 1520-5126 SP - 4120 TI - Chemoselective polymerizations from mixtures of epoxide, lactone, anhydride, and carbon dioxide T2 - Journal of the American Chemical Society UR - http://dx.doi.org/10.1021/jacs.5b13070 UR - https://pubs.acs.org/doi/10.1021/jacs.5b13070 UR - http://hdl.handle.net/10044/1/29972 VL - 138 ER -