阴离子印迹聚合物的研究进展

Research Progress of Anion Imprinting Polymer

近年来,以阴离子形式存在的金属或非金属(如磷酸根、铬酸根和砷酸根等)已经成为水体的重要污染源。印迹技术是将模板分子和功能单体生成某种聚合物,再采用某种方法将模板分子分离最终获得与模板分子匹配的孔穴结构材料。印迹聚合物因其具有预定性和特异的吸附能力,已开始应用于阴离子的分离、富集和吸附去除。本文主要介绍了印迹技术的基本原理、制备方法、特点以及典型阴离子印迹聚合物的制备和应用。

Recently,metals or non-metals in the form of anions such as phosphate,chromate and arsenate have become one of the most important sources of the world’s water pollution.Molecularly imprinted technique is to prepare highly crosslinked polymers in the presence of a template molecule and functional monomer.Then,the template molecule is washed using some eluant and recognition cavities complementary to the template molecule are formed.Because of preordainment and selective adsorption,molecularly imprinted polymer has applied in separation,enrichment and adsorption of anions.This paper mainly introduces the basic principle and preparation method of molecularly imprinted technique as well as the preparation and application of representative anion imprinted polymer.