| abstract |
The invention discloses the preparation and application that a kind of polyacrylamide acrylic acid VDT that adsorption function is selected in water is physical crosslinking high intensity hydrogel.Acrylamide, VDT, acrylic acid are sufficiently stirred in dimethyl sulfoxide (DMSO) first to obtain uniform mixed solution, thermal initiation obtains the preforming gel of softness at a certain temperature, the aqueous solution of nine water ferric nitrates is immersed in again, more hydrogen bonds are formed by VDT, ferric ion acts on the metal-complexing that carboxyl is formed, and forms the high intensity hydrogel of double physical crosslinkings；The hydrogel material forms strong hydrogen bond with having fast selective with target molecule in aqueous, adsorbs the target molecule of specific structure, the performance for being enriched with target molecule.The preparation process of the present invention is not only easy to operate, and excellent product performance, while available for fields such as material separation and purifying, sensing technology, analytical technologies. |