Polymerization of vinyl monomers. Initiating systems based on quinones andorganoelement compounds

When combined with organoelement compounds of nontransition metals, quinone s, which usually act as inhibitors of radical processes, are capable of eff ective initiation of radical vinyl polymerization at a rather low temperatu re and make it possible to control the lifetime of the polymer chain. The m olecular mass of the resulting polymers increases linearly with conversion, which provides indirect evidence that polymerization proceeds according to the pseudo-living chain mechanism.