An Fu-Qiang, Li Hu-Fei, Guo Xu-Dong, Gao Bao-Jiao, Hu Tuo-Ping, Gao Jian-Feng
Chemical Department, North University of China Taiyuan 030051 People's Republic of China
Codan-Lingyun Automotive Rubber Hose Co., Ltd Zhuozhou 072750 People's Republic of China.
RSC Adv. 2019 Jan 18;9(5):2431-2440. doi: 10.1039/c8ra09948k.
Traditional bulk polymerization imprinted technology and existing surface imprinted technology have some congenital defects. Therefore, it is necessary to design more efficient surface imprinted technology. In this paper, novel surface imprinting technology with higher imprinting efficiency is well designed. It fully realizes the synchronization of polymer crosslinking and template imprinting. Then the surface imprinted polymers (SIPs) are synthesized using metal ions as a template. The physicochemical characteristics of the SIPs are characterized by scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) studies, Fourier transform infrared spectroscopy (FTIR) and elemental analysis. The adsorption performances and recognition selectivity of the SIPs towards the template are investigated by a batch method. The experimental results show that the SIPs possess excellent adsorption ability and selectivity towards the template. The selectivity coefficients of the SIPs prepared in this study are higher than those of IIPs prepared by other imprinting methods. The adsorption process could be well described by the Lagergren-first-order model and Langmuir monolayer chemical adsorption. The SIPs have good chemical stability and reusability. Consecutive adsorption-desorption experiments show that the exhausted SIPs could be effectively regenerated, and the regenerated SIPs could be reused without a significant reduction in adsorption capacity or selectivity coefficient.
传统的本体聚合印迹技术和现有的表面印迹技术存在一些先天性缺陷。因此，有必要设计更高效的表面印迹技术。本文精心设计了具有更高印迹效率的新型表面印迹技术。它充分实现了聚合物交联与模板印迹的同步。然后以金属离子为模板合成表面印迹聚合物（SIPs）。通过扫描电子显微镜（SEM）、布鲁诺尔-埃米特-泰勒（BET）研究、傅里叶变换红外光谱（FTIR）和元素分析对SIPs的物理化学特性进行表征。采用分批法研究了SIPs对模板的吸附性能和识别选择性。实验结果表明，SIPs对模板具有优异的吸附能力和选择性。本研究制备的SIPs的选择性系数高于其他印迹方法制备的IIPs。吸附过程可用 Lagergren 一级模型和朗缪尔单层化学吸附很好地描述。SIPs具有良好的化学稳定性和可重复使用性。连续的吸附-解吸实验表明，耗尽的SIPs可以有效地再生，再生后的SIPs可以重复使用，而吸附容量或选择性系数不会显著降低。
