Chemical path to polyurethane polymer used in creation of spandex. Spandex is principally made up of a polyurea derived through the reaction of a diol and also a diisocyanate. Two courses of spandex are described with the "macrodiols". One course of macrodiols will be the oligomer manufactured from tetrahydrofuran (i. https://manleyg173mmn1.dekaronwiki.com/user