DVB-MMA共聚物树脂吸附水相苯酚的研究

以二乙烯基苯(DVB)和甲基丙烯酸甲酯(MMA)的混合液为单体,分别采用悬浮聚合法和溶剂热法合成高分子树脂PDMA和PDVB.通过BET、IR、SEM对样品的结构和形貌进行表征,对比2种方法合成吸附树脂的性能差异,并考察各高分子树脂对水中苯酚的吸附效果.结果表明,采用悬浮聚合法制备的DVB-MMA共聚物树脂在2~4nm和5~30nm范围内均有明显孔径分布,具有较大的比表面积566m2/g. DVB-MMA共聚物树脂(PDMA-XF)对4500mg/L苯酚溶液的饱和吸附量为170.4mg/g,其酯羰基中的氧原子与酚羟基当中的氢原子产生氢键作用,这些分子间的氢键作用有助于吸附水中苯酚.

Adsorption of phenol on DVB-MMA copolymer resin in aqueous solution

Polymer resins (PDMA and PDVB) were prepared by suspension polymerization and solvothermal method using divinylbenzene (DVB) and methyl methacrylate (MMA) as monomers respectively. The samples were characterized by BET, IR and SEM. Adsorption performance of phenol on these resins was investigated. DVB-MMA copolymer resin prepared by suspension polymerization had larger pore size distribution of 2~4nm and 5~30nm, and higher surface area of 566 m2/g. The adsorption capacity of phenol on DVB-MMA copolymer (PDMA-XF) can be achieved to 170.4 mg/g at concentration of 4500 mg/L. A strong interaction between the oxygen atoms of ester carbonyl and hydrogen atoms of the phenolic hydroxyl would result in high adsorption capacity of phenol.