Chemical Recycling of Polycarbonates <i>via</i> Ammonolysis and Polycaprolactones by KOH‐Catalyzed Methanolysis
Tanveer Mahamadali Shaikh, Arumugam Sudalai, Kanghee Cho, Changbum Jo
Abstract
Abstract Chemical recycling polymer waste is a highly required technology to follow the current carbon‐neutral trend. Here, we present practical recycling methods for poly (bisphenol A carbonate) (PC) and poly(ϵ‐caprolactone) (PCL). PC can be converted to bisphenol A and urea with excellent product yield at 80 °C via ammonolysis using ammonium salt (ammonium‐formate or ‐carbonate) instead of liquid ammonia that is usually used in previous PC recycling. PCL can be converted to methyl 6‐hydroxy‐hexanoate monomer with excellent yield at 80 °C via methanolysis catalyzed by KOH.
Topics & Concepts
ChemistryCatalysisOrganic chemistryMicroplastics and Plastic Pollutionbiodegradable polymer synthesis and propertiesRecycling and Waste Management Techniques