Polyurethane_urea used for leather finishing was prepared from aliphatic diisocyanate by ketazine process.
选择脂肪族二异,通过酮连氮法制备水乳型聚氨—脲皮革涂饰剂。
Polyurethane_urea used for leather finishing was prepared from aliphatic diisocyanate by ketazine process.
选择脂肪族二异,通过酮连氮法制备水乳型聚氨—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.
甲苯二异(TDI)是异化合物中应最广泛的品,其工业生产主要采胺光化法。
A series of polyarylsulphone\|polyetherurethane block copolymers are synthesized through hydrogen polyaddition of diisocyanate terminated poly(oxypropylene)ether with polyethersulphone diphenol.
通过端二异聚醚预聚物与齐聚醚砜二酚模型物的氢转移加成聚合反应合成了系列聚芳醚砜-聚醚氨嵌段共聚物。
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.
第二聚酰亚胺聚合物是芳香族四二酐与芳香族二异,在有机溶剂中,在催化剂的作下,步法缩合反应制备得到;
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