Polyurethane (PU) is a diverse class of organic polymers formed by the reaction of a polyol and an isocyanate, known for their versatility in being tailored to be either rigid or flexible. Commonly used in foams, coatings, adhesives, and elastomers, polyurethanes contribute to products like furniture, building insulation, shoe soles, and textiles such as Spandex. Their unique properties, including durability and elasticity, make them a key material in many industrial and everyday applications. #