A team of researchers at ETH Zurich has announced a breakthrough that could make recycling acrylic glass—commonly known as Plexiglas—both practical and affordable. The new method uses a single, readily available chemical to break the polymer down into its original monomers, achieving a yield of up to 98 %.
The process operates at just over 200 °C, roughly half the temperature required by earlier techniques, and does not need any solvents. Even acrylic that has been dyed or contains impurities can be converted into material of the same quality as virgin plastic.
Because the chemistry can be carried out on existing equipment and follows standard industrial procedures, manufacturers would not need costly plant overhauls to adopt the technology. ETH Zurich has filed a patent and is actively seeking industry partners to scale the method.
Lead author Richard Whitfield told Nature Chemistry that the simplicity of the approach is its greatest advantage. “For a material used in millions of products worldwide, this is a hopeful step toward keeping more plastic out of landfills and turning waste back into useful, high‑quality goods with far less energy and cost,” he said.
The team also believes the underlying concept could be adapted to other common plastics, such as polystyrene, potentially broadening the impact of the technique.
Market analysis
The introduction of a low‑energy, high‑yield recycling route could reshape the acrylic glass supply chain. Current recycling rates for acrylic are low because of high energy demands and complex processing steps. A 98 % monomer recovery at half the temperature and without solvents would reduce operating costs for manufacturers and lower the environmental footprint of acrylic production.
For companies that rely on acrylic in windows, automotive lighting, furniture and protective barriers, the new method offers a way to secure a stable supply of high‑purity material while meeting growing regulatory and consumer pressure for circularity. Investors in polymer recycling and advanced materials may view the patented process as a strategic asset, potentially spurring partnerships and joint ventures.
If the technology proves scalable, it could also create new market opportunities for monomer suppliers and downstream manufacturers, encouraging a shift toward closed‑loop production systems. The broader implication is a more resilient and sustainable plastics industry, with reduced dependence on virgin petro‑chemical feedstocks.