ABSTRACT

In contrast to the slow step-reaction polymerizations discussed in Chapter 5, chain polymerizations are usually rapid, and the initiation species continues to propagate until termination. us, in the extreme case, a single initiation species could be produced, which would produce one high molecular chain, leaving all of the other monomer molecules unchanged. In any case, the concentration of monomer, which is usually a derivative of ethylene, decreases continuously throughout the reaction. In contrast to stepwise polymerization, the rst species produced is a high molecular polymer.