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Synthesis of a Temperature-Sensitive Matrine-Imprinted Polymer and Its Potential Application for the Selective Extraction of Matrine from Radix Sophorae Tonkinensis

机译:温敏苦参碱印迹聚合物的合成及其在提取苦参中苦参碱中的潜在应用

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摘要

A temperature-sensitive matrine-imprinted polymer was prepared in chloroform by free-radical cross-linking copolymerization of methacrylic acid at 60 °C in the presence of ethylene glycol dimethacrylate as the cross-linker, N-isopropyl acrylamide as the temperature-responsive monomer and matrine as the template molecule. Binding experiments and Scatchard analyses revealed that two classes of binding sites were formed on molecular imprinted polymer (MIP) at 50 °C. Additionally, the thermoresponsive MIP was tested for its application as a sorbent material for the selective separation of matrine from Chinese medicinal plant radix Sophorae tonkinensis. It was shown that the thermoresponsive MIP displayed different efficiency in clean-up and enrichments using the SPE protocol at different temperatures.
机译:在氯仿中,在乙二醇二甲基丙烯酸酯作为交联剂,N-异丙基丙烯酰胺作为温度响应性单体的情况下,通过甲基丙烯酸在60°C的自由基交联共聚反应,在氯仿中制得温度敏感的苦参碱印迹聚合物。以苦参碱为模板分子。结合实验和Scatchard分析表明,在50°C的分子印迹聚合物(MIP)上形成了两类结合位点。此外,还对热敏性MIP用作吸附剂材料进行了测试,该材料用于从中药材山豆根中选择性分离苦参碱。结果表明,在不同温度下,使用SPE规程,热敏MIP在净化和富集方面显示出不同的效率。

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