Polyurethane Foams: Past, Present, and Future
2018-9-27u2002·u20022. Polyurethane Foams. The first urethane was synthesized in 1849 by Wurtz [].Afterwards, in 1937, Otto Bayer synthesized PUs from the reaction between a polyester diol and a diisocyanate [10,11,12,13].Indeed, this was a major breakthrough at the time, as it consisted of a new class of polymerization reaction called polyaddition, which is also known as step …
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