含PNIPAM嵌段有机纳米管的合成及其对MB与ARS的吸附与释放性能探究

Synthesis of PNIPAM Copolymer-Embedded Organic Nanotubes and Exploration of Their Adsorption and Release Performance towards MB and ARS

为了高效吸附染料废水中的染料分子,制备了一种具有温度可控性的新型吸附材料。首先,采用可控自由基聚合和开环聚合将聚N-异丙基丙烯酰胺(PNIPAM)引入多孔有机纳米管中,制备了具有核壳结构的多组分聚合物分子刷;其次,利用分子刷嵌段聚合物的傅克烷基化超交联过程生成了具有微孔、中孔和大孔结构的PNIPAM修饰的多级孔有机纳米管网络(MONNs)聚合物;最后,探究了MONNs对染料分子亚甲基蓝(MB)、茜素红S(ARS)的吸附与释放性能。结果表明,该方法制备的MONNs材料对染料分子具有良好的吸附效果。

In order to efficiently adsorb dye molecules from dye wastewater,a novel adsorbent material with temperature controllability was prepared.Firstly,poly(N-isopropylacrylamide)(PNIPAM)was introduced into porous organic nanotubes via controlled free radical polymerization and ring-opening polymerization,resulting in multicomponent polymer brush with coreshell structure.Secondly,PNIPAM-modified multilevel porous organic nanotube network(MONNs)polymer with micro-,meso-and macroporous structures was synthesized through the grafting-to of the block copolymer and subsequent Fukui alkylation supper-cross-linking process.Finally,the adsorption and release properties of MONNs towards dye molecules methylene blue(MB)and alizarin red S(ARS)were explored.The results demonstrate that the MONNs materials prepared by this method have excellent adsorption efficiency towards dye molecules.