金属螯合物印迹聚邻苯二胺膜的电化学合成及表征.pdf

物理化学学报( uli Huaxue Xuebao)
Acta Phys. -Chim. Sin. 2011, 27(6), 1451-1456
145
Articl
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金属螯合物印迹聚郐苤二胺膜的电化学合成及表征
汪莲艳1陆枫2吴福全3顾仁敖2姚建林2张海禄1邓宗武1
(中国科学院苏州纳米技术与纳米仿生研究所,江苏苏州215123:2苏州大学材料与化学化工学部,江苏苏州21512
苏州市环境监测中心站,江苏苏州215004)
摘要:以邻苯二胺(O-PD)为功能单体,乙二胺四乙唆铜离子合物(Cu(I)-EDTA)为模板分子,利用循环伏安
法(CV)合成了Cu(I)EDTA分子印迹聚合物(MPs).通过紫外-可见(UVVs)光谱、X射线光电子能谱(XPS)、差
分脉冲伏安法(DPV)、石英晶体微天平(QCM)等手段对合成的聚合物进行了表征.UV-Vis光谱分析表明当溶液
的pH25.0时有利于邻萃二胺电聚合形成聚合度较高的聚合物;XPS结果证明Cu(I)-EDTA螯合物被成功地包
覆在聚合物膜中,且推断出模板分子和聚合物之间可能主要靠氢键相互作用;DPV实验结果证明模板分子能
够被有效洗脱;QCM的測试结果表明此方法合成的Cu()-EDTA印迹聚合物膜对Cu(H)-EDTA具有良好的响
应度
关键词:邻苯二胺;螯合物;分子印迹聚合物;循环伏安法;石英晶体微天平
中图分类号:0641
Electrosynthesis and Characterization of Metal Chelate Imprinted
Poly-o-phenylenediamine Films
WANG Lian-yan LU Feng.WU Fu-quan GU Ren-ao' YAO Jian-lin
ZHANG Hai-lu DENG Zong-wu
(uzhou Institue ofnano-tech and Nan - c hinese Academy of Science uzhou 215123, iangsu Province, P R Chin
College of hemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 21 5123, Jian su Province, P R
China; Suzhou Environmental Monitor Centre, Suzhou 215004 Jiangsu Province, P. R. Chin)
Abstract: Novel molecularly imprinted polymers (Mlps)were synthesized by the electrochemical
olymerization of -phenylenediamine (o-pd)using cyclic voltammetry in the presence of Cu(D)
ethylene iaminetetraacetate chelate(Cu(EDTA), which acted as a template. The resultant polymers were
characterized by Uv-vis spectroscopy, X-ray photoelectron spectroscopy (XPS), differential p
voltammetry(DP) an quartz cystal microbalance(M Vs spectral analysis inicate that a higher
degree poly-o-phenylenediamine(POPD)was obtained at PH25.. XPS analysis clearly showed the
successful embedding of a Cu( - chelate in the POPD film and, therefore, hydrogen bonding was a
major interaction between the template and the POPD film. DPV analysis confirmed the successful removal
of the template from the POPD fi m. The QCM test showed that the Cu()EDTA imprinted POPD film had
good Cu(I-EDTA chelate sensitivity
Key Words: o-phenylenediamine Chelate Molecularly imprinted polymer; Cyclic voltammetry
Quartz crystal microbalance
Received: January 14, 2011; Revised: April 12, 2011; Published on Web: May 9, 2011
Corresponding author. Email: zwdeng2007(@sinano accn; Te]: +86-512-62872559
The project was supported by the National Natural Science Foundation of China(21073226)and Science and fechnology Planing Project of
Suzhou, China (SS0852
家自然科学基金(2107322)及苏州市科技计划项目(SS0852)资助
C Editorial office of Acta Physico-chimica Sinica