镥(Ⅲ)离子印迹聚合物的制备及表征研究  

Preparation and characterization of ion-imprinted polymer of lutetium(Ⅲ)

作　　者：豆鹏飞 Dou Pengfei(Changqing Oilfield Co.LTD,Yulin 718100,Shaanxi,China)

机构地区：[1]长庆油田公司

出　　处：《橡塑技术与装备》2019年第12期1-5,共5页China Rubber/Plastics Technology and Equipment

摘　　要：分子印迹技术是近些年发展起来的一种新的分子识别技术,如今已成为当前研究的热点之一。通过分子印迹技术获得的分子印迹聚合物具有选择性高、稳定性好及制备简单等特点。本文介绍了一种新的镥离子印记聚合物合成的方法,即以镥(Ⅲ)离子作为模板,4-乙烯基吡啶(4-VP)、乙酰丙酮(Hacac)和镥(Ⅲ)形成的三元配合物为功能单体、乙二醇二甲基丙烯酸酯(EDMA)为交联剂,采用传统方法--本体聚合法合成镥(Ⅲ)离子配位分子印迹聚合物。本文研究了镥(Ⅲ)离子印迹聚合物对镥(Ⅲ)离子的吸附性,并分别用紫外、红外及X射线衍射(XRD)对其进行了系统表征。结果表明,印迹聚合物对镥(Ⅲ)离子具有良好的亲和性,其饱和吸附量为Qmax=69.4mg/g,与实验所得的最大吸附量64.2mg/g基本相符。Molecular imprinting technology is a new molecular recognition technology developed in recent years, which has become one of the hotspots of current research. Molecularly imprinted polymers obtained by molecular imprinting technology have the characteristics of high selectivity, good stability and simple preparation. In this paper, a new method for synthesizing lutetium ion imprinted polymer is introduced, which uses lutetium (Ⅲ) as template, 4-vinylpyridine (4-VP), acetylacetone (Hacac) and lutetium (Ⅲ) as functional monomer and ethylene glycol Dimethylacrylate (EDMA) as crosslinking agent. The traditional method of bulk polymerization is used to synthesize lutetium (Ⅲ) ion coordination molecularly imprinted polymers. In this paper, the adsorptivity of lutetium (Ⅲ) ion-imprinted polymer to lutetium (Ⅲ) ion was studied, and characterized by ultraviolet, infrared and X-ray diffraction (XRD). The results show that the imprinted polymer has a good affinity for lutetium (Ⅲ) ions. The saturated adsorption capacity of the imprinted polymer is Qmax=69.4 mg/g, which is basically consistent with the maximum adsorption capacity of 64.2 mg/g.

关 键 词：印迹聚合物 本体聚合法 吸附性 表征 

分 类 号：TQ33[化学工程—橡胶工业]