No other area of polymerization has been the subject of as many studies, especially of mechanism, as that of emulsion polymerization and copolymerization [1, 21. This fact arises not only from what has been regarded as the distinctive features of emulsion polymerization as a process but also from the highly diverse character of emulsion polymerization arising from the specific nature of the monomers utilized and the polymers produced and their influence on the course of the process itself.