3. Polymerization-degradation

In many cases, polymerization and degradation are inextricably linked;

• or because the species propagating polymerization (especially free radicals) are not totally selective and also attack the polymer (especially at high advancement rates);

• or because the final glass transition temperature T _g is high, polymerization must be carried out at high temperature, i.e. in a range where thermal degradation of the polymer is not negligible.

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