Polyurethane_urea used for leather finishing was prepared from aliphatic diisocyanate by ketazine process.
选择脂肪族
氰酸酯，通过酮连氮法制备水乳型聚氨酯—脲皮革涂饰剂。
氰酸盐(酯)
氰酸酯Polyurethane_urea used for leather finishing was prepared from aliphatic diisocyanate by ketazine process.
选择脂肪族氰酸酯，通过酮连氮法制备水乳型聚氨酯—脲皮革涂饰剂。
Toluene diisocyanate (TDI) is one of the most useful kinds of isocyanateth that is produced by the method of phosgenation of amine.
甲氰酸酯(TDI)是氰酸酯化合物中应
最广泛的品种之一,其工业生产
胺光化法。
A series of polyarylsulphone\|polyetherurethane block copolymers are synthesized through hydrogen polyaddition of diisocyanate terminated poly(oxypropylene)ether with polyethersulphone diphenol.
通过端氰酸酯聚醚预聚物与齐聚醚砜酚模型物的氢转移加成聚合反应合成了一系列聚芳醚砜-聚醚氨酯嵌段共聚物。
The second polyimide polymer is prepared with aromatic tetracid dihydride and aromatic diisocyanate and through a one-step condensation reaction in organic solvent and under the action of catalyst.
第种聚酰亚胺聚合物是芳香族四酸酐与芳香族氰酸酯，在有机溶剂中，在催化剂的作下，一步法缩合反应制备得到；
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