壳聚糖/P(SSS-HEMA-AA)水凝胶的制备及对Cu^(2+)吸附性能研究

Preparation of Chitosan/Ploy(SSS-HEMA-AA)Hydrogel and Its Study on Adsorption Properties for Cu^(2+)

以壳聚糖(CS)为原料,对苯乙烯磺酸钠(SSS),甲基丙烯酸羟乙酯(HEMA),丙烯酸(AA)为共聚单体,过二硫酸钾(KPS)为引发剂,戊二醛为交联剂,在水溶液中生成壳聚糖/P(SSS-HEMA-AA)水凝胶。分别考察了SSS用量对Cu^(2+)的吸附能力和戊二醛用量对吸水膨胀率的影响。结果表明:制得的水凝胶为三维交联网状结构,水凝胶对Cu^(2+)的吸附能力随SSS用量的增加而增强,吸水膨胀率随戊二醛用量增加而减小。

The chitosan/ploy（SSS-HEMA-AA） hydrogel was prepared in aqueous solution with Chitosan as materials, sodium p-styrene sulfonate（SSS）, hydroxyethyl methacrylate（HEMA） and acrylic acid（AA） as co-monomer, potassium persulfate（KPS） as initiator, glutaraldehyde as crosslinking agent. The effect of SSS content on the adsorption capacity for Cu^（2＋） and the amount of glutaraldehyde on the swelling rate of water absorption was studied. The results showed that the prepared hydrogel was three dimensional crosslinked network structure, its adsorption capacity for Cu^（2＋） increased with the increase of SSS content, and its swelling rate of water absorption decreased with the increase of the amount of glutaraldehyde.