Definitions
Chemical aging of polymers - Physico-Chemical Stabilization
Article REF: AM3153 V2
Definitions
Chemical aging of polymers - Physico-Chemical Stabilization

Authors : Emmanuel RICHAUD, Jacques VERDU

Publication date: October 10, 2012, Review date: September 1, 2016 | Lire en français

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1. Definitions

Stabilization is any modification of a material designed to increase its chemical stability under given conditions. Stabilization can be :

  • internally, it is the very structure of the polymer that is modified by copolymerization, grafting, substitution, etc. ;

  • external; it is provided by additives generally incorporated during shaping, possibly in the form of a masterbatch.

Internal stabilization is mainly used to slow down or inhibit the thermal degradation of polymers breaking down in chain reactions.

Example

for depolymerization (see §

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