PS-Cy和PS-Acyl-Cy树脂的制备及其吸附对硝基酚  

Preparation and adsorption to p-nitrophenol of PS-Cy and PS-Acyl-Cy resins

作　　者：孟启[1] 周峰[1] 舒斌斌[1] 倪梦[1] 孙小强[1] 

机构地区：[1]常州大学石油化工学院,江苏省常州市213000

出　　处：《合成树脂及塑料》2015年第3期44-48,共5页China Synthetic Resin and Plastics

摘　　要：用1,4,7,10-四氮杂环十二烷(Cyclen)分别修饰氯甲基化的聚苯乙烯微球及氯乙酰化的聚苯乙烯微球,合成Cyclen型聚苯乙烯(PS-Cy)树脂及Cyclen型氯乙酰化的聚苯乙烯(PS-Acyl-Cy)树脂。测定了两种树脂的增重率及全交换容量并研究了其吸附动力学。结果表明:PS-Cy树脂的全交换容量达1.59 mmol/m L,对对硝基酚(PNP)的最大吸附量达118.93 mg/m L,吸附过程符合Langmuir模型;而PS-Acyl-Cy树脂的全交换容量为1.45 mmol/m L,对PNP的最大吸附量为90.87 mg/m L,吸附过程符合Freundlich模型。两种树脂的吸附过程都符合准二级动力学方程并且液膜扩散为主要控制步骤。The chloromethylated and chloracetylated polystyrene microspheres were modified by1,4,7,10-tetraazacyclododecane（Cyclen）respectively, and a Cyclen-style polystyrene（PS-Cy）resin and a Cyclen-style chloracetylated polystyrene（PS-Acyl-Cy）resin were synthesized. The weight gain rate and total exchange capacity of the two resins were determined and the absorption kinetics of the resins was studied.The results show that the total exchange capacity and maximum absorption amount to PNP of PS-Cy resin reach 1.59 mmol/m L and 118.93 mg/m L respectively, and the absorption process fits Langmuir model. While the total exchange capacity and maximum absorption amount to PNP of PS-Acyl-Cy are 1.45 mmol/m L and90.87 mg/m L and the absorption process fits Freundlich model.The adsorption processes of the two kinds of resins both fit the pseudo-second-order kinetic equation and the liquid film diffusion is the principal controlling step in the processes of adsorbing PNP.

关 键 词：聚苯乙烯 对硝基酚 1 4 7 10-四氮杂环十二烷 吸附过程 液膜扩散 

分 类 号：TQ424[化学工程] O647.3[理学—物理化学]