Chemical Depolymerization of PET Bottles via Ammonolysis and Aminolysis

Aminolysis and ammonolysis are scarcely used chemical methods for recycling of poly(ethylene terepthalate) (PET) bottle flakes and fibers. These methods of recycling PET scraps are easy in operation, cost-effective and capable of yielding recycled monomers, which can be employed as raw material feedstock for manufacturing of pristine polymers (e.g., PET, polyamides, etc.) as well as in miscellaneous applications like hardening of epoxy, binder for PU paints, etc. The commercial exploration of these chemical recycling methods depends upon the yield, purity, use of catalysts, and cost of the process involved.