Proceedings title: Applied Mechanics and Materials
Editors: Wang YD
Publisher: Trans Tech Publications
Volume number: 197
Conference information: Applied Sciences and Engineering
Abstract: Molecularly imprinted polymers of bisphenol A were synthesized with a sol-gel process on the supporter of silica nanospheres. The BPA-imprinted silica nanospheres were characterized by scanning electron microscope, dynamic adsorption, static adsorption tests and molecular selectivity tests. Scatchard analysis revealed that two classes of binding sites were formed in the imprinted polymers, the equilibrium association constant and the apparent maximum number of binding sites were estimated to be 0.20 μmol ml-1 and 137.55 μmol g-1, respectively. Bisphenol A and three analogues, tetrabromobisphenol A (TBBPA), bisphenol C (BPC) and nonylphenol (NP) were employed for selectivity tests. The results indicated that the imprinted polymers exhibited excellent selectivity and specificity toward bisphenol A.
Template and target information: bisphenol A, BPA
Author keywords: bisphenol A, characterization, molecularly imprinted polymer, Silica Nanospheres