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首页> 外文期刊>Chinese science bulletin >Preparation of molecularly imprinted microspheres by photo-grafting on supports modified with iniferter
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Preparation of molecularly imprinted microspheres by photo-grafting on supports modified with iniferter

机译：通过在嫁接者修饰的载体上进行光接枝制备分子印迹微球

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摘要

Molecularly imprinted microspheres (MIMs) of D-mandelic acid were synthesized in this study. Chloromethylated polystyrene beads modified with iniferter were used as supports for photo-grafting of a molecularly imprinted polymer (MIP) layer. The polymers were characterized by FT-IR, elemental analysis and thermo-gravimetric analysis to testify the polymer formation and its thermal stability. Scanning electron micrographs (SEM) show that the MIP particles are mono-dispersed and well-spherical, with the average diameter of 4.38 |jm and size distribution coefficient of 1.02. Furthermore, the MIMs were packed in a stainless steel column and evaluated as stationary phases in high performance liquid chro-matography (HPLC). The prepared MIP exhibited a considerable capability of chiral separation between template and its enantiomer. Accordingly, this kind of MIP is likely to have wide applications in chemical sensing, chromatographic analysis and solid phase extraction.
机译：在这项研究中合成了D-扁桃酸的分子印迹微球（MIM）。用引发剂修饰的氯甲基化聚苯乙烯珠粒用作分子印迹聚合物（MIP）层的光接枝的载体。通过FT-IR，元素分析和热重分析对聚合物进行表征，以证明聚合物的形成及其热稳定性。扫描电子显微镜照片（SEM）显示，MIP颗粒是单分散的且球形良好，平均直径为4.38μm，尺寸分布系数为1.02。此外，将MIM装在不锈钢柱中，并在高效液相色谱（HPLC）中作为固定相进行评估。制备的MIP表现出相当大的模板与其对映异构体之间的手性分离能力。因此，这种MIP可能会在化学传感，色谱分析和固相萃取中广泛应用。

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