Chemical path to polyurethane polymer Utilized in production of spandex. Spandex is principally composed of a polyurea derived through the reaction of the diol and a diisocyanate. Two courses of spandex are defined because of the "macrodiols". 1 course of macrodiols is definitely the oligomer made from tetrahydrofuran (i. The https://zalmayp764ucj2.newbigblog.com/profile