以假穴醚环为功能基的聚合物的合成与对Fe(上标 3+)的吸附

With 2-phenoxyethanol as initial material, a novel pseudo-cryptand ether polymer with crosslinking phenolic chain and nitrogen atom at the end of bridge was synthesized by a combined method of first polymerization, then cyclization and functionalization. Static adsorption properties of the polymeric cryptand ether for metallic ions were tested. The results show that the polymer has a good preferential adsorption property for Fe(superscript 3+) and the adsorption capacity is 1.22mmol/g (start concentration of Fe(superscript 3+): 0.053mol/L, 25℃). Within the limits, the quantity of adsorption for Fe(superscript 3+) increases along with the rising of Fe(superscript 3+) concentration and the increase of adsorptive time, the adsorption reaches equilibrium after three hour. The polymer has a good reprocess property and it can be fully reused. The adsorption capacities were over 1.16mmol/g after it was used more than four times.