葛根素温敏分子印迹聚合物的制备及其吸附性能.

Puerarin thermal-sensitive molecularly imprinted polymers (MIP2) were synthesized by precipitation polymerization which containing puerarin as templates, acrylamide (AM) as functional monomers, N-isopropylacrylamide (NIPAM) as temperature sensitive monomer and ethylene glycol dimethacrylate (EGDMA) as crosslinkers. Static adsorption demonstrated that these imprinted polymers possessed well specific adsorption properties for puerarin, the adsorbing capacity reached 45.51 mg/g when concentration of quercetin was 1 mg/mL for MIP2, and the adsorption process accorded with Langmuir model. The MIP2 exhibits temperature responsive behavior, which had a higher adsorption capacity at low temperature (30 ℃). This study can provide some new thoughts and methods to separate and purify puerarin from natural medicines. [ABSTRACT FROM AUTHOR]