Synthesis of castor oil-based glycidyl carbamate polyurethane elastomer and its effect on toughening of polyoxymethylene

Glycidyl Carbamate Resins Synthesized through a Nonphosgene Route by Amidine-Based Superbases Using Recycled Polycarbonate

“…Because of this, the GC resins are different from PUs in terms of their reaction chemistry, properties, and applications. GC resins find applications in the areas of medical devices and marine coatings, , frost-resistant binders, impact modifiers for polyoxymethylene, flame-resistant foams for electronics, and space industry . Apart from that, an essential advantage of GC resins is the presence of self-cross-linking reactions of epoxide groups toward the active hydrogens of the carbamate, and the secondary hydroxyl group derived from the ring-opening reaction of epoxide group. , The ring-opening reaction of an epoxide group would generate a secondary hydroxyl group, which reacts with other epoxide groups to produce a cross-linked network, thereby resulting in a high cross-linking density in the epoxy resin .…”