C H Bond Activation

Researchers develop catalytic method to oxidize polyethylene surfaces without altering bulk properties

Scientists report a new technique that selectively converts methylene units on polyethylene's surface into ketones using a trace iron catalyst (0.001 mol%) and inexpensive oxidants at under 80°C. The process occurs at the solid-liquid interface, modifying only the plastic's surface chemistry while preserving bulk characteristics like melting point and tensile strength.