【摘要】 以苦参碱为模板分子,通过后交联反应,成功制备了分子印迹酚羟基修饰超高交联吸附树脂(MIP),同时制备了非分子印迹超高交联吸附树脂(NIP).测试了MIP树脂和NIP树脂的物理性能和形貌特征,研究了MIP在水溶液中对苦参碱和金雀花碱的静态平衡吸附行为和对苦参碱的吸附选择性,并与NIP对苦参碱和金雀花碱的吸附行为进行了对比.结果表明:相比NIP,MIP的比表面积有所下降,而孔径和孔容有所增大,且MIP树脂上的孔洞比NIP树脂更为规则;MIP在水溶液中对苦参碱的选择系数较高,最高可达到15.67,MIP对苦参碱具有较高的识别选择性;静态平衡吸附等温线均符合Langmuir方程和Freundlich方程,拟合结果表明MIP树脂比NIP树脂更有利于吸附苦参碱.更多还原

【Abstract】 Adding the templet molecule of Matrine in post cross-linking reaction, a novel molecular imprinting hypercrosslinked polymeric(MIP) adsorbent was successfully prepared and modified by phenol group, and the non-imprinting hypercrosslinked polymeric(NIP) adsorbent was also prepared. The physics performance and the surface morphology were determined. The static equilibrium adsorptions of Matrine and Cytisine and the adsorption selectivity of Matrine onto MIP resin in aqueous solution were investigated. The adsorption behaviors of Matrine and Cytisine onto MIP resin were compared with those onto NIP resin. The results show that compared with NIP resin, the specific surface area is decreased, while the pore size and the pore volume are increased with more regular pore structure. The selective coefficients of Matrine onto MIP resin are high with the maximum value of 15.67, which illuminates that MIP resin has high recognition ability to Matrine. The static equilibrium adsorption isotherms can well fit Langmuir and Freundlich equations, and the fitting results show that MIP resin has much higher adsorption ability to Matrine than NIP resin.更多还原