Hydrothermal Depolymerization of Polyesters and Polycarbonate in the Presence of Ammonia and Amines
نویسنده
چکیده
Reaction conditions, temperature and pressure ranges, for various chemical recycling proc‐ esses of polyesters are sketched in Figure 1. So far, various recycling processes for polyesters have been investigated and developed, as reviewed by Paszun and Spychaj [1]: alcoholysis with methanol or ethanol, glycolysis with ethylene glycol or propylene glycol, alkali hydrolysis with sodium hydroxide, ammonolysis and aminolysis. Recently, hydrolysis with suband supercritical water or with high pressure steam is also investigated. Many studies have discussed the advantages or disadvantages, and new or modified methods have been contin‐ uously developed.
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