REX is a process that uses an extruder, normally Co-TSE as chemical reactor instead of a typical steel vessel, combining mixing, devolatilisation and the chemical reaction in one step. Reactions like polymerisation, compatibilisation, backbone functionalisation and controlled degradation are the most usual applications.
REX is a complex process that requires an in-depth study of the reaction and its conditions. The main factors to be controlled will depend on each type of reaction but can be summarised in:
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