丙烯酰胺型氧氟沙星吸附材料的制备及性能研究

Preparation and Properties of Acrylamide Ofloxacin Adsorption Materials

采用自由基聚合法,在溶液聚合体系中将功能单体丙烯酰胺(AM)接枝于聚丙烯伯胺树脂球(PSA)表面,制得了接枝微粒PAM/PSA,考察了主要因素对接枝聚合的影响,并探究了其对氧氟沙星的吸附行为。结果表明,在引发单体AM进行接枝聚合的反应中,适宜的条件为:在温度为30℃、单体浓度为11.1%、引发剂用量0.4 g的条件下,在乙醇溶液中反应8 h,可制得接枝度为476.9 mg·g^(-1)的接枝微粒,其对氧氟沙星的最大吸附量达到118 mg·g^(-1)。

In the solution polymerization system,the grafted microparticles PAM/PSA were prepared by grafting functional monomer acrylamide(AM)onto the surface of polystyrene primary amine microsphere particles(PSA)through a free radical polymerization method.The main influence factors on graft polymerization were investigated,and its adsorption characteristics of ofloxacin were explored.The results showed that at a temperature of 25℃,the concentration of monomer was 11.1%,and the amount of initiator used was 0.4 g,the grafted particles with a grafting degree of 476.9 mg·g^(-1)can be obtained.Its adsorption capacity for ofloxacin reached 118 mg·g^(-1).