高等学校化学学报

高等学校化学学报 ›› 1989, Vol. 10 ›› Issue (6): 658.

• 研究简报 • 上一篇    下一篇

EDTA冠醚衍生物(Ⅴ)—EDTA-二氨基二苯并冠醚缩聚物的合成及其对金属离子吸附行为初探

秦圣英, 刘忠群, 陈绍金, 金成昌   

  1. 四川大学化学系
  • 收稿日期:1987-12-29 出版日期:1989-06-24 发布日期:1989-06-24
  • 通讯作者: 秦圣英

Crown Ether Derivatives of EDTA (Ⅴ)—Synthesis of EDTA-Diaminodibenzocrown Ether Polyconden- sate and Preliminary Study on Their Adsorption Behavior for Some Metal Ions

Qin Shengying, Liu Zhongqun, Chen Shaojin, Jin Chengchang   

  1. Department of Chemistry Sichuan University, Chengdu
  • Received:1987-12-29 Online:1989-06-24 Published:1989-06-24

PDF (PC)

摘要： 在环上含多羧基的冠状聚合物能吸附海水中铀[1]。我们继前文[2]合成了一类在主链上含多个羧甲基的聚酰胺酸3a-c。为了考查冠醚环和羧基对聚合物吸附金属离子的影响,还制备了无冠醚环的3d,以及3a-d的无羧基衍生物聚酰亚胺4a-d作对照物。

关键词: EDTA, 冠醚缩聚物, 合成, 吸附

Abstract: EDTAdianhydridc reacted with 4,4' -diaminodibenzocrown ethers or 4,4'-diaminobiphenyl to give polyamido acids 3a-d, bearing pendant carboxymethyl groups on the chain. 3a-d were heated under vacuum to form polyimides 4a-d. The adsorption behavior of the polymers for U(Ⅳ)> U(Ⅵ), Au(Ⅲ) and K( Ⅰ ), etc. was examined. The preliminary experiment shows that the polyamido acids are superior to the polyimides in adsorbability for some metal ions and the cis-polyamido acid 3d, is the most excellent one among the 8 polymers. 3a has the capacity of 97.5 mg U(Ⅵ)/g, 976 mg Au(Ⅲ)/g and 10.6 mg K(Ⅰ)/g, respectively.

Key words: EDTA, Crown ether polycondensatc, Synthesis, Adsorption

TrendMD: