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Reference type: Journal
Authors: Xu ZF, Liu L, Deng QY
Article Title: Preparation and binding characteristic of bisphenol A imprinted polymers.
Publication date: 2005
Journal: Acta Scientiarum Naturalium Universitatis Sunyatseni
Volume: 44
Issue: (3)
Page numbers: 53-57.
Alternative URL: http://en.cnki.com.cn/Article_en/CJFDTotal-ZSDZ200503014.htm

Abstract: A series of bisphenol A imprinted polymers were prepared using different functional monomers and porogens. The result shown that the polymer prepared by using 2-vinylpyridine as the functional monomer and toluene as the porogen exhibited a higher binding capacity for bisphenol A. Complexes formed between bisphenol A and functional monomer which lead to the change of chemical shift of H NMR spectrum. The change extenge extend altered with different porogens. This means that the stability of the complex was different, which result in different selectively binding capability between substrate and molecular imprinting polymer (MIP). Scatchard analysis showed that one equal class of binding sites was formed in the imprinted polymer under the studied concentration range. The dissociation constant and the apparent maximum number of the binding sites were 2.81 mmol/L and 148.1 μmol g-1, respectively. It was observed that the change of the solvent would influence the binding capacity of the polymers greatly
Template and target information: bisphenol A, BPA
Author keywords: 2-vinylpyridine, binding capacity, bisphenol A, Chemical shift, molecular imprinting


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