Improving Thermal Stability in Polyurethane Adhesives Using Advanced Dimorpholinodiethyl Ether Catalysts Abstract Polyurethane (PU) adhesives are widely used in various industries due to their excellent adhesive properties, flexibility, and durability. However, their thermal stability is a critical factor that limits their application in high-temperature environments. This paper explores the use of advanced dimorpholinodiethyl ether (DMDEE)...