亲水性p-乙酰氨基酚树脂对茶碱的吸附性能  

The Adsorption Performances for Theophylline onto the Hydrophilic Resin Modified by p-Acetaminophen

作　　者：肖谷清[1,2] 龙立平[1] 齐风佩[1] 王姣亮[1] 徐满才[2] 

机构地区：[1]湖南城市学院化学与环境工程系,益阳413000 [2]湖南师范大学化学化工学院,长沙410081

出　　处：《高分子通报》2012年第2期73-78,共6页Polymer Bulletin

基　　金：湖南省教育厅科研基金(项目号09C198)资助项目

摘　　要：用氯球和p-乙酰氨基酚合成了亲水性p-乙酰氨基酚树脂(简记为GQ-01),研究乙酰氨基和酚羟基两类氢键作用位点修饰的GQ-01树脂对茶碱的吸附性能。实验表明:在相同茶碱起始浓度下,GQ-01树脂对茶碱的吸附量是XAD-4商业树脂对茶碱吸附量的1.9倍;GQ-01树脂对茶碱的吸附为放热、自发的过程;GQ-01树脂对茶碱的吸附动力学数据符合Lagergren一级速率方程,颗粒内扩散是吸附速率的主要控制步骤,GQ-01树脂对茶碱的吸附动力学可采用HSDM模型加以描述;GQ-01树脂对茶碱的动态吸附及脱附实验表明GQ-01树脂对水溶液中茶碱的饱和吸附量达到102.13mg/mL,树脂可以通过80%C2H5OH和1mol/L HCl的混合溶液再生。The objective of this work was to study the adsorption performances for theophylline onto the p-acetaminophen resin（GQ-01 resin） with two kinds of the hydrogen bond site of acetamino group and hydroxyl group. The GQ-01 resin modified with p-acetaminophen was synthesized with chloromethylated polystyrene and p-acetaminophen by Friedel-Crafts reaction. The results showed that the adsorption property of theophylline onto GQ-01 resin was 1.9 times that of XAD-4. Heat was discharged during the adsorption and the adsorption occurred automatically. The adsorption kinetic date of theophylline fitted to the Lagergren first order rate equation. The intrapartical diffusion of theophylline was the main rate-controlling step. The adsorption kinetic date could be described by HSDM model. The saturated adsorption quantity of theophylline was up to 102.13mg·mL^-1 according to the dynamic adsorption and desorption experiments at 298 K. The resin could be regenerated by 80% ethanol and 1 mol/L HCl.

关 键 词：p-乙酰氨基酚树脂 茶碱 吸附 

分 类 号：TQ464.4[化学工程—制药化工]