The peculiarities of the macrokinetics of rapid polymerization processes in turbulent flows (when the times of the chemical reaction are less than or compatible with those of the reagent mixing) have been discussed. The characteristic specific phenomena have been elucidated, namely: dependence of the molecular characteristics output (MW and MWD) of the polymer formed on the geometry of the reaction volume and on the parameters of the processes of mixing and heat transfer (flow rates, turbulization, boiling, etc.). Such reactions require special methods of investigation and control including those in industries with principally new material-, resource-, and power-saving technology, in particular, for the production of the isobutylene polymers. It is expedient to distinguish the rapid processes of polymerization as a separate class.