Polymer chemistry textbooks (e.g., B. Vollmert, Polymer Chemistry, Springer
-Verlag: New York, 1973, p 37; G. Odian, Principles of Polymerization, 3rd
ed., Wiley: New York, 1991, p 8; H. G. Elias, An Introduction to Polymer Sc
ience, VCH: Weinheim, 1997, p 51) classify polymerization reactions as chai
n, step, and living according to the dependence of their degree of polymeri
zation (<(DP)over bar>) or molecular weight ((M) over bar) on conversion. T
his article discusses the rationale for uniform terminology in living polym
erization. (C) 2000 John Wiley & Sons, Inc.