单一结合位点分子印迹聚合物的合成及性能  被引量:2

Synthesis of Single Binding Site Molecular Imprinted Polymer and Its Molecular Recognition Capacity

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作  者:孙妍 王兵[1] 

机构地区:[1]天津工业大学中空纤维膜材料与膜过程省部共建国家重点实验室培育基地,天津工业大学环境与化学工程学院,天津300160

出  处:《高分子材料科学与工程》2012年第5期8-11,共4页Polymer Materials Science & Engineering

基  金:天津市自然科学基金重点项目(10JCZDJC21900)

摘  要:采用分子自组装印迹技术在光引发条件下制备了以(S)-布洛芬为模板分子,α-甲基丙烯酸为功能单体的分子印迹聚合物。通过红外对聚合物的结构进行了表征。透射电镜结果表明,交联剂用量对印迹聚合物的形貌特征具有显著的影响。同时结合Scatchard分析研究了印迹聚合物的吸附性能及选择性识别能力,表明印迹聚合物特异性吸附容量为41μmol/g,印迹指数为2.28,对(S)-布洛芬形成单一结合位点,且表现出明显的吸附选择性。A series of molecularly imprinted polymers (MIP) were prepared via a W-initiated at 20 ℃ temperature using (S)-ibuprofen as the template, methacrylic acid (MAA) as the functional monomer, ethyleneglycol dimethacrylate (EGDMA) as corss-linker. MIP was characterized by Fourier transform infrared spectra (FT-IR). The effect of cross-linker dosage on the morphology of MIP and binding capacity were studied by transmission electron microscopy (TEM). The best specific adsorption capacity is 41 /μmol/g, imprinted index is 2.28. The selectivity binding experiments indicate that compared with (S)-ibuprofen' structural analogs (Ketoprofen and (R)-ibuprofen), (S)-ibuprofen template imprinted polymer exhibits significant adsorption selectivity for (S)-ibuprofen. The separation factors are 1.29 and 2.84, respectively.

关 键 词:分子印迹 单一结合位点 (S)-布洛芬 吸附选择性 

分 类 号:O631.6[理学—高分子化学]

 

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