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A novel and effective approach was developed to synthesize monodisperse hollow molecularly imprinted polymers (MHMIPs) with unfunctionalized SiO2 spheres in a mixture of toluene and CH3CN.The factors that affected the synthesis of MHMIPs were systematically investigated.It was determined that a suitable ratio of toluene to CH3CN and the use of a functional monomer that can generate double H-bonding interactions were the critical factors to obtain MHMIPs with high uniformity and monodispersion.The obtained MHMIPs exhibited a fast adsorption rate and high adsorption capacity (270 μmol/g) for bisphenol A.As the shell thickness increased from 90 nm to 130 nm,the binding capacity of the imprinted shells decreased gradually.The relative selectivity coefficients of MHMIPs for tetra-bromobisphenol A (TBBPA),phenol and p-tert-butylphenol (PTBP) were calculated as 1.53,1.83 and 1.90,respectively.These findings indicate that MHMIPs have good adsorption performances and suggest applications in the selective removal or sensitive analysis of bisphenol A. 相似文献
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