多壁碳纳米管表面苯酚印迹聚合物的制备及性能研究  

Preparation and properties of phenol imprinted polymers based on multi- walled carbon nanotubes

作　　者：龚超[1] 王翠[1] 刘文慧[1] 成斌 范济民[1] 赵志换[1] 

机构地区：[1]太原理工大学化学化工学院,山西太原030024 [2]山西省产品质量监督检验研究院,山西太原030012

出　　处：《日用化学工业》2015年第8期447-451,456,共6页China Surfactant Detergent & Cosmetics

基　　金：山西省自然科学基金青年基金资助项目(2008021015);山西省社会发展攻关项目(20130313026-5)

摘　　要：以聚乙二醇改性的多壁碳纳米管为基质,苯酚为模板分子,α-甲基丙烯酸为功能单体,乙二醇二甲基丙烯酸酯为交联剂,乙腈为溶剂,偶氮二异丁腈为引发剂,结合表面分子印迹技术在碳纳米管表面合成了苯酚分子印迹聚合物。利用红外光谱和扫描电镜表征合成材料的形貌特征,结果表明,碳纳米管表面成功接枝了印迹材料。研究了印迹材料的吸附性能,此印迹材料对苯酚有特异性吸附和选择性吸附性能,印迹因子最大达到3.64,选择因子最大达到2.78,最大吸附量为44.30 mg/g,能较好的用于痕量苯酚的分离。Phenol molecular imprinted polymer was synthesized with polyethylene glycol - modified multi - walled carbon nanotubes as the substrate, phenol as a template molecule, α- methacrylic acid as functional monomer, ethylene glycol dimethacylate as cross -linking agent and azobisisobutyronitrile as initiator in aeetonitrile solution. FTIR and SEM were used to characterize the synthesis product. Results showed that the molecular imprinting polymer has been grafted to the surface of multi - walled carbon nanotubes successfully. The adsorption performance of imprinted material were examined, and results showed that the imprinted material displays specific and selective adsorption performance;the maximum imprinting factor for the template is 3.64 ; the maximum selectivity is 2.78 and the adsorption capacity is 44. 30 mg/g. The imprinted materials can be applied for the separation of trace amount of phenol.

关 键 词：苯酚 多壁碳纳米管 分子印迹 吸附 

分 类 号：O631.3[理学—高分子化学]