The monograph is meant to systematize facts on energetic websites and their kinetic and stereospecific heterogeneity (polysite phenomenon) in olefin and diene monomer ion, ion-coordination and complicated radical polymerization procedures. Questions of molecular-mass distribution of polymers acquired by way of ion and ion-coordination polymerization equipment are mentioned including composition and stereo regularity distribution of olefin copolymers. info at the impression of transition and non-transition steel beginning and their ligand atmosphere, stipulations of catalytic procedure coaching and polymerization are proven. quite a few review tools of polymerization lively web site distribution via kinetic job and stereospecific motion are thought of. specifically, an review technique for kinetic task distribution at ion-coordination diene polymerization is defined, mathematical simulation parameters for polymerization tactics are proven, making an allowance for the polysite constitution of catalytic structures. Of certain realization are geometrical and electron constitution of energetic websites within the ion-coordination polymerization through the quantum chemistry technique, interrelation among reactivity of a few sorts of lively websites and stereospecificity in their motion in diene polymerization. the significance of ratio among particular time simple act period on the diene injection, coordinated on an energetic website, and time of propagating macrochain finish unit life within the s-state at polydiene microstructure formation is indicated. Questions of the polysite mechanism incidence in advanced radical polymerization methods are mentioned. plausible for polymerization to continue in either free-radical and complicated similar chain propagation websites is shown.