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Direct Synthesis of Monodisperse Hollow Molecularly Imprinted Polymers Based on Unfunctionalized SiO2 for the Recognition of Bisphenol A
Shao-min Liu*,Meng-xing Wei,Xin Fu,Xue-bin Zhang
Author NameAffiliationE-mail
Shao-min Liu* Department of Chemistry, University of Science and Technology of China, Hefei 230026, China liusm@ustc.edu.cn 
Meng-xing Wei Department of Chemistry, University of Science and Technology of China, Hefei 230026, China  
Xin Fu Department of Chemistry, University of Science and Technology of China, Hefei 230026, China  
Xue-bin Zhang Department of Chemistry, University of Science and Technology of China, Hefei 230026, China  
Abstract:
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.
Key words:  Hollow molecularly imprint  Molecular recognition  Nanostructured polymers  Bisphenol A
FundProject:This work was supported by the Common Wealth Scientific Foundation for Industry of Chinese Inspection and Quarantine (No.201210071), the Ministry of National Science and Technology of China.
SiO2表面双酚A中空分子印迹纳米球的制备及识别性能
刘少民*,韦梦醒,付欣,张学彬
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DOI:10.1063/1674-0068/31/cjcp1708164
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