EDTA-type Polymer Based on Diazacrown Ether as the Solubilizer of Barium Sulfate to Water  

作　　者：BoZHOU JianZhangLI ChunHongHE ShengYingQIN 

机构地区：[1]TheFacultyofChemistry,SichuanUniversity,Chengdu610064

出　　处：《Chinese Chemical Letters》2005年第1期27-30,共4页中国化学快报（英文版）

基　　金：the financial support from the National Natural Science Foundation of China(Grant No:29572050).

摘　　要：The EDTA dianhydride reacted with diazacrown ethers to obtain the water-soluble EDTA-diazacrown ether polymers 1~3. The effects of crown ether ring in the polymer chains including its cavity size on the solubilization of barium sulfate to water were investigated by comparison with the crown ring-free analogue 4. The result shows that the polymer 2 is the efficient solubilizer of BaSO4 and the highest solubilization efficiency of the BaSO4to water is up to 72.5%.The EDTA dianhydride reacted with diazacrown ethers to obtain the water-soluble EDTA-diazacrown ether polymers 1~3. The effects of crown ether ring in the polymer chains including its cavity size on the solubilization of barium sulfate to water were investigated by comparison with the crown ring-free analogue 4. The result shows that the polymer 2 is the efficient solubilizer of BaSO4 and the highest solubilization efficiency of the BaSO4to water is up to 72.5%.

关 键 词：EDTA-diazacrown ether polymers barium sulfate solubilization. 

分 类 号：O614.233[理学—无机化学] O645.1[理学—化学]