Common catalysts for this type of reaction are metal-carbene complexes such as those named for Schrock and for Grubbs.
Commercial products of this type of reaction include Telene and Prometa, both of which use dicyclopentadiene as the starting material. Norbornene and norbornene dicarboxylic acid are also popular starting materials for this type of reaction, which has been shown by Ahmed et al. to allow polydispersity control when creating diblock copolymers. Recoordination with the catalyst can terminate this reaction by forming a cyclic oligomer, a process known as "back-biting." A chain transfer agent can be used to add terminal functional groups or to limit the product molecular weight. Common catalysts for this type of reaction are metal-carbene complexes such as those named for Schrock and for Grubbs. These reactions are driven by the relief of strain, making cyclohexene a poor choice of monomer. For 10 points, name this type of chain-growth polymerization reaction that unfolds and attaches cyclic alkenes.
Commercial products of this type of reaction include Telene and Prometa, both of which use dicyclopentadiene as the starting material.
ROMP [or ring-opening metathesis polymerization (prompt on partial answer or olefin metathesis)]