Hexamethylene diisocysnate (HMDI) may be used in prepolymer, in place of TD I.
採用一步法合成以4 ,4'-**二環已基二異**酯(HMDI)、擴鏈劑1,4 -丁二醇(BDO)為硬段,聚四*呋喃醚(PTMG)為軟段的脂肪族聚氨酯。
The one step method was adopted in this study to synthesize aliphatic polyurethane with 4,4 methylene dicyclohexyl diisocyanate(HMDI), 1,4 butanediol(BDO) and poly (tetrahydrofuran)(PTMG).