Polyurethane (VALIDATED)

Organic compounds containing at least two isocyanate groups ( Polyols: Alcohols containing at least two hydroxyl groups ( −OHnegative OH Reaction Mechanism The general reaction forming the urethane bond is:

Polyurethane (PU) is a versatile group of synthetic polymers characterized by the presence of in their chemical backbone . First synthesized by Otto Bayer in 1937, these materials have evolved into a cornerstone of modern manufacturing due to their tunable properties, ranging from soft, flexible foams to rock-hard rigid plastics. 1. Fundamental Chemistry and Synthesis Polyurethane

The "tailor-made" nature of PU stems from its : Organic compounds containing at least two isocyanate groups

Polyurethanes dominate several major sectors because they can be formulated as : ranging from soft

R−NCO+R′−OH→R−NH−CO−O−R′cap R minus NCO plus cap R prime minus OH right arrow cap R minus NH minus CO minus O minus cap R prime

Flexible foams provide the primary cushioning for mattresses and upholstered furniture.