Cyclic olefins form polymers (copolymers) of a high tacticity in a presence of this catalyst .
Living polymerization with ring opening metathesis is terminated by removing the transition metal from the end of the growing chain and its further deactivation.
Deactivation in this case involves the formation of a complex unable to initiate polymerization .
ROMP polymers are characterized by high molecular weights and a narrow MMD, as well as for products of other living polymerizations .
Up until the mid-1970s, the information about the structure of the active center of olefin metathesis catalysts was not known.
Intermolecular and intramolecular chain transfers are two main side reactions of ROMP (Scheme 2).