Researchers from the University of Delaware and Argonne National Laboratory have discovered a novel approach to convert waste polystyrene (PS) and other aromatic polymers into high-value materials like polystyrene sulfonate (PSS), which have numerous industrial applications. Aromatic polymers such as PS, styrene–ethylene–butadiene–styrene (SEBS), polyether sulfone (PES), and poly(ethylene terephthalate) (PET) are prevalent in everyday products. The increasing production of these plastics leads to significant waste disposal issues. Traditional Recycling Methods Lead to Push for New Innovations Traditional recycling methods, including mechanical and chemical recycling, are often not economically viable due to the low cost of new plastics. This economic barrier limits the effectiveness of recycling efforts. Instead of conventional recycling, researchers propose an upcycling method to convert plastic waste into value-added materials. Using its chemical composition, specifically its reactive parts, they can create a usable product. This upcycling strategy offers a more sustainable solution by transforming waste into higher-value products. Sulfonation Process Explained: Converting PS (polystyrene) into PSS (polystyrene sulfonate) involves a chemical reaction called sulfonation. There are two main types of sulfonation: Hard Sulfonation: Uses strong chemicals like fuming sulfuric acid to achieve high levels of sulfonation but can cause unwanted side reactions and defects. Soft Sulfonation: Uses gentler methods […]