Chemical path to polyurethane polymer Utilized in production of spandex. Spandex is mainly made up of a polyurea derived through the reaction of a diol and a diisocyanate. Two lessons of spandex are outlined by the "macrodiols". One particular class of macrodiols would be the oligomer created from tetrahydrofuran (i. https://agathau790fgh9.muzwiki.com/user