Authors: Lee WS
, Takeuchi T
Bisphenol A analog-imprinted polymers prepared by an immobilized template on a modified silica microsphere matrix.
Publication date: 2005
Journal: Analytical Sciences
Alternative URL: http://www.jstage.jst.go.jp/article/analsci/21/9/21_1125/_article
Abstract: Bisphenol A (BPA)-recognizing imprinted polymers were synthesized using a template immobilized on silica where the template was grafted to aminopropyl silica. The silica-template conjugate was co-polymerized with a cross-linker (ethylene glycol dimethaerylate) and a functional monomer (4-vinylpyridine or methacrylic acid). The synthesized silica-polymer composites were treated with an aqueous NH4HF2 solution to dissolve the silica matrix. The 4-vinylpyridine-based imprinted polymer showed strong binding affinity to BPA and structurally related compounds having two hydroxyl groups at the 4,4'-position in the bisphenol structure
Template and target information: bisphenol A, immobilised template, 4,4'-bis(4-hydroxyphenyl)valeric acid
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