罗丹明B分子印迹聚合物的合成及吸附性研究

以罗丹明B为模板分子，采用本体聚合法，以三羟甲基丙烷三甲基丙烯酸酯为交联剂，乙腈为致孔剂，制备具有印迹位点的聚合物。通过振荡吸附实验确定了适宜的单体种类，并对致孔剂的用量进行优化。采用扫描电镜和红外分析仪对其微观形貌进行表征，并对聚合物进行平衡吸附和选择性研究。结果表明，印迹聚合物对目标分子具有较高的选择性和亲和性，在质量浓度为15 μg/mL时，达到平衡，饱和吸附量为370.49 μg/g。吸附动力学研究表明，时间为150 min时吸附达到平衡。

Preparation and Adsorption Properties of Rhodamine B Molecularly Imprinted Polymers

Molecularly imprinted polymers (MIP) were prepared by bulk polymerization using rhodamine B (RhB) as the
template, methacrylic acid (MAA) as the functional monomer, trimethylolpropane trimethacrylate (TRIM) as the crosslinker
and acetonitrile as the porogen. Adsorption experiments were carried out on the MIP to select the optimum monomer and
porogen amount. Scanning electron microscopy and infrared spectrometry were employed to observe the morphology of
the polymers. Equilibrium adsorption and selectivity experiments were performed. The results revealed that the imprinted
polymers showed better adsorption properties and selective recognition capacity. The maximum adsorption capacity was
370.49 μg/g at a concentration of 15 μg/mL. The equilibrium was reached in 150 minutes.