Ring-opening allene metathesis polymerization of cyclic allenes is a promising method to synthesize poly(allenamer)s. However, fast catalyst death rates have hindered their synthesis, resulting in high dispersities and low molecular weights. Here, we report the synthesis of poly(allenamer)s using novel derivatized cyclic allene monomers. Enhanced rates of polymerization and high regioregularity were observed. Furthermore, the derivatization of the cyclic allene monomers allowed for extended catalyst lifetime over the polymerization and higher molecular weights.

Synthesis of regioregular poly(allenamer)s via ring-opening allene metathesis polymerization of substituted cyclic allenes

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