高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

聚四氟乙烯纤维的改性及其对胆红素的吸附

韩晓燕1,2, 张政朴1   

    1. 南开大学高分子研究所, 功能高分子材料教育部重点实验室, 天津 300071;
    2. 天津中医药大学中药学院, 天津市中药化学与分析重点实验室, 天津 300193
  • 收稿日期:2008-07-17 修回日期:1900-01-01 出版日期:2009-03-10 发布日期:2009-03-10
  • 通讯作者: 张政朴

Modification of PTFE Fiber and Its Adsorption Property for Bilirubin

HAN Xiao-Yan1,2, ZHANG Zheng-Pu1*   

    1. Key Laboratory of Function Polymeric Materials, Ministry of Education, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, China;
    2. Institute of Chinese Medica, Tianjin Key Laboratory of Chemistry and Analysis of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
  • Received:2008-07-17 Revised:1900-01-01 Online:2009-03-10 Published:2009-03-10
  • Contact: ZHANG Zheng-Pu

PDF (PC)

被引次数

18

摘要： 以聚四氟乙烯(PTFE)纤维为基质, 以甲基丙烯酸缩水甘油酯(GMA)为单体, 通过辐照接枝聚合制备了PTFE-g-GMA纤维, 用聚乙烯亚胺(PEI)与PTFE-g-GMA纤维进行开环反应制得新型吸附剂PTFE-g-GMA-PEI. 考察了PTFE-g-GMA-PEI吸附剂对溶液中胆红素的吸附动力学、吸附量及pH、离子强度及温度等因素对胆红素吸附的影响. 实验结果表明, 该吸附剂对胆红素有较高的吸附容量及良好的选择吸附性能, 其吸附行为遵循Langmuir吸附模式.

关键词: 聚四氟乙烯纤维, 辐照接枝, 胆红素吸附

Abstract: The adsorbent of bilirubin based on polytetrafluoroethylene(PTFE) fiber was prepared by 60Co radiation-induced graft polymerization with GMA and by subsequent chemical modification of the epoxy group of PTFE-g-GMA fiber with PEI. The highest amino content on the PTFE-g-GMA-PEI fiber is 1.87 mmol /g. The effect of pH, ionic strength, temperature, BSA, initial bilirubin concentration and adsorption dynamics on the adsorption capacity of PTFE-g-GMA-PEI fiber for bilirubin were investigated in a batch system. Experimental data indicate that the adsorption capacity of the grafted fiber is greatly affected by the pH of the medium, and in near neutral solution of pH=6.5, the grafted fiber have the highest adsorption capacity(9.6 mg/g). The bilirubin adsorption on the PTFE-g-GMA-PEI fiber obeyed the Langmuir model. Besides, the PTFE-g-GMA-PEI fiber has the considerablely competitive ability to combine bilirubin with BSA.

Key words: Polytetrafluoroethylene(PTFE) fiber, Irradiation grafting, Bilirubin adsorption

中图分类号: 

TrendMD: