Chemical route to polyurethane polymer Employed in production of spandex. Spandex is especially composed of a polyurea derived within the reaction of the diol plus a diisocyanate. Two lessons of spandex are outlined by the "macrodiols". Just one class of macrodiols is definitely the oligomer made from tetrahydrofuran (i. You https://fidelh185oop2.bloggerchest.com/profile