冠醚聚氨酯泡塑的合成及其在锂镁分离中的应用

The synthesis of the crown ether PU foam and the application in separating lithium and magnesium

用超声波法合成了二苯并-14-冠-4,将该冠醚与甲醛线型聚合后,与聚氨酯共混聚合得到互穿聚合物网络(IPN)的冠醚聚氨酯泡塑,利用该泡塑对锂镁进行分离研究。实验结果表明,冠醚树脂分离锂镁效果良好,是值得推广的锂镁分离新材料。

The dibenzo-14-crown-4 was was polymerized formaldehyde, synthesized by the ultrasonic synthetic method, and after it the linear polymer was obtained. The polymer was co- polymerized with the monomers of PU （polyurethane） foam, and network copolymer （IPN）was achieved. The experiment of separating lithium and magnesium was processed using the network copolymer. The experimental result shows that the effect of separating Li＋ and Mg2＋ is good and the crown PU foam will become a new kind of materials for separating Li＋ and Mg2＋ ions.