Synergistic Catalysis in Polyurethane Synthesis: The Interplay of Metal Catalysts and Amine Co-catalysts Abstract: Polyurethane (PU) synthesis is a complex reaction involving the isocyanate and polyol components, typically facilitated by catalysts. While metal catalysts and amine catalysts are individually effective, their combined use often exhibits synergistic effects, leading to improved reaction rates, enhanced product properties,...