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Reference type: Journal
Authors: Liu SM, Wei MX, Fu X, Zhang XB
Article Title: Direct Synthesis of Monodisperse Hollow Molecularly Imprinted Polymers Based on Unfunctionalized SiO2 for the Recognition of Bisphenol A.
Publication date: 2018
Journal: Chinese Journal of Chemical Physics
Volume: 31
Issue: (2)
Page numbers: 229-237.
DOI: 10.1063/1674-0068/31/cjcp1708164

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
Template and target information: bisphenol A, BPA
Author keywords: Hollow molecularly imprint, molecular recognition, nanostructured polymers, bisphenol A

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