ABSTRACT
Polymerization of metal-containing monomers (MCMs) creates certain prerequisites for the appearance of regularly built polymers. They are based, first of all, on the possibility of the quadrupoles or ion pairs selecting one or another direction for approaching a monomer. Also, an important role is played by electrostatic and steric factors. Formation of ion pairs composed of a growing radical and a counterion encourages syndiotactic addition. Starting with the orienting influence of the coordination bonds and polar effects, one also can expect a significant impact of the terminal MCM unit on the structure of the attached unionized monomer. Structuralization is also possible when macromers, particularly with methyl methacrylate (MMA), were obtained. Structural studies of the macromer indicated that it was predominantly isotactic, the syndiotacticity being higher when the polymer was synthesized from p- vinylbenzyl magnesium chloride than from an m-isomer and increased as the temperature decreased.
