In the last twenty years the literature on the processes of ionic
polymerization has reached such a level that there is not a single
question which is not covered by the information contained in the many
monographs, reference books, and textbooks in this field. It is easy for
the interested reader to find sources for in-depth study, for a
superficial acquaintance with the fundamentals of the subject or with
the general features of these processes. At the same time the field is
being continually enriched by new facts which have not only broadened
the data base but which influence existing concepts on the mechanisms of
these reactions. Such influences often touch the very foundations of
these concepts, i. e., they go beyond simple descriptions of the
structure of the pre-reaction states or earlier schemes. It is therefore
appropriate to attempt a critical appraisal of the modern views on the
mechanisms of formation of macro- molecules in ionic systems which
envisages, so far as is possible, the differentiating of fundamental and
hypothetical conclusions or concepts. With this in mind we have
preferred to address ourselves to the reader who is already quite well
acquainted with the general litera- ture. This has allowed us to
dispense with detailed introductions to the questions discussed and to
limit ourselves to brief comments on the fundamentals of the subject.