化学学报 ›› 2005, Vol. 63 ›› Issue (6): 479-483. 上一篇    下一篇

研究论文

邻香草醛分子印迹聚合物膜的制备及其透过选择性质的研究

卢春阳,马向霞,何锡文*,李文友,陈朗星   

  1. (南开大学化学系 吸附分离功能高分子材料国家重点实验室 天津 300071)
  • 收稿日期:2004-06-25 修回日期:2004-11-15 出版日期:2005-03-28 发布日期:2010-12-10
  • 通讯作者: 何锡文

Preparation and Selective Permeation Characterization of Molecularly Imprinted Membranes with o-Vanillin as Template

LU Chun-Yang, MA Xiang-Xia, HE Xi-Wen*, LI Wen-You, CHEN Lang-Xing   

  1. (Department of Chemistry, State Key Laboratory of Functional Polymer Materials for Adsorption and Separation, Nankai University, Tianjin 300071)
  • Received:2004-06-25 Revised:2004-11-15 Online:2005-03-28 Published:2010-12-10
  • Contact: HE Xi-Wen

采用紫外光引发原位聚合的方法制备了具有支撑膜的邻香草醛分子印迹聚合物膜. 紫外光度法测定了模板分子和功能单体之间的结合常数和化学计量比(n=2). 用傅立叶红外光谱和扫描电镜分别测定了膜的结构和表面形貌; 膜渗透实验结果表明在干扰物存在时印迹膜对模板分子表现出良好的选择透过性能. 研究了分子印迹聚合物膜透过的机理、并为分子印迹技术应用于传感器领域增加了理论和实验方法.

关键词: 分子印迹技术, 分子印迹膜, 膜渗透, 邻香草醛

Using o-vanillin as template molecule, molecularly imprinted polymer membranes with supporting membrane were synthesized through in-situ polymerization by UV irradiation. The binding constant and chemical combination ratio of the complex formed between o-vanillin and the functional monomer were obtained by UV spectrophotometry. The membrane structure and surface features were analyzed by FTIR spectrogram and scan electron micrography. Permeation experiment results showed that the imprinted membrane exhibited selective permeation properties for o-vanillin in the presence of the interfering molecule. This work can improve the study of molecularly imprinted membrane permeation mechanism, and also increase the application of molecularly imprinting technique to the sensor field.

Key words: molecularly imprinting technique, molecularly imprinted membrane, membrane permeation, o-vanillin