Chemical route to polyurethane polymer Utilized in production of spandex. Spandex is especially composed of a polyurea derived with the reaction of the diol along with a diisocyanate. Two lessons of spandex are defined via the "macrodiols". A single course of macrodiols would be the oligomer produced from tetrahydrofuran (i. https://thomasz962hii0.eedblog.com/profile