| 多壁碳纳米管表面熊果酸印迹聚合物的制备及固相萃取 |
| |
| 引用本文： | 张朝晖,杨潇,张华斌,张明磊,罗丽娟,陈星,聂利华.多壁碳纳米管表面熊果酸印迹聚合物的制备及固相萃取[J].高分子学报,2011(12):1470-1476. |
| |
| 作者姓名： | 张朝晖 杨潇 张华斌 张明磊 罗丽娟 陈星 聂利华 |
| |
| 作者单位： | 吉首大学化学化工学院;湖南大学化学传感与计量国家重点实验室; |
| |
| 基金项目： | 国家自然科学基金(基金号21005030); 湖南省教育厅重点项目(项目号10A099); 湖南大学化学传感与计量国家重点实验室开放基金(基金号2008007); 吉首大学研究生创新课题项目(项目号JGY 201111)资助 |
| |
| 摘 要： | 以聚乙烯醇修饰的多壁碳纳米管(MWCNTs)为基材,熊果酸(UA)为模板分子,甲基丙烯酸(MAA)为功能单体,乙二醇二甲基丙烯酸酯(EGDMA)为交联剂,采用表面印迹技术在碳纳米管表面合成对熊果酸具有良好选择性的分子印迹聚合物( MWCNTs-MIPs).讨论了不同摩尔比例的功能单体与模板分子合成印迹聚合物的效果,得出...
|
| 关 键 词： | 表面印迹 碳纳米管 固相萃取 熊果酸 |
PREPARATION OF URSOLIC ACID IMPRINTED POLYMERS BASED ON MULTI-WALLED CARBON NANOTUBES AND THEIR APPLICATION IN SOLID PHASE EXTRACTION |
| |
| ZHANG Zhaohui,YANG Xiao,ZHANG Huabin,ZHANG Minglei,LUO Lijuan,CHEN Xing,NIE Lihua.PREPARATION OF URSOLIC ACID IMPRINTED POLYMERS BASED ON MULTI-WALLED CARBON NANOTUBES AND THEIR APPLICATION IN SOLID PHASE EXTRACTION[J].Acta Polymerica Sinica,2011(12):1470-1476. |
| |
| Authors: | ZHANG Zhaohui YANG Xiao ZHANG Huabin ZHANG Minglei LUO Lijuan CHEN Xing NIE Lihua |
| |
| Institution: | ZHANG Zhaohui1,2,YANG Xiao1,ZHANG Huabin1,ZHANG Minglei1,LUO Lijuan1,CHEN Xing1,NIE Lihua2(1College of Chemistry and Chemical Engineering,Jishou University,Jishou 416000)(2State Key Laboratory of Chemo Biosensing and Chemometrics,Hunan University,Changsha 410082) |
| |
| Abstract: | A novel surface molecularly imprinted polymer was synthesized using poly(vinyl alcohol) modified multi-walled carbon nanotubes(MWCNTs) as supporting matrix,ursolic acid(UA) as the template molecule,methacrylic acid(MAA) as the functional monomer and ethylene glycol dimethacrylate(EGDMA) as the cross-linking agent.Effect of different molar ratios of the functional monomer to the template on the performance of the synthesized MWCNTs-MIPs was discussed and the results showed that the optimum ratio was 4∶1.The multi-walled carbon nanotubes-molecularly imprinted polymers(MWCNTs-MIPs) were characterized by Fourier transform infrared spectroscopy(FTIR) and scanning electron microscopy(SEM).The results showed that a stable imprinted layer was grafted on the MWCNTs surface successfully.The adsorption properties were demonstrated by static adsorption and adsorption kinetic experiments.The results demonstrated that the MWCNTs-MIPs had specific selectivity for UA,yielding a maximum adsorption capacity of 53.1 μmol/g and the equilibrium time took about 60 min.Solid phase extraction condition was optimized,and the optimal condition was washing with 100% methanol and eluting with 10% acetic acid methanol solution.The solid-phase extraction column packed with MWCNTs-MIPs could be applied to separate ursolic acid(UA) from similar structure oleanolic acid(OA). |
| |
| Keywords: | Surface molecular imprinting Carbon nanotubes Solid-phase extraction Ursolic acid |
| 本文献已被 CNKI 等数据库收录！ |
|
