Abstract: Molecularly imprinted films with self-supporting property (SS-MIFs) have been prepared by using the strategy of transition layer construction followed by reversible addition-fragmentation chain transfer (RAFT) polymerization. The structure, composition and selectivity of the SS-MIFs as well as the mechanism of mass transfer were characterized by scanning electron microscopy, X-ray diffraction, Fourier transform IR spectrometry, specific surface area analysis, thermogravimetric analysis, and HPLC. Surface area analysis showed the samples possessed specific surface areas as high as 80.5 m2 g-1. This is almost 9 times more than that of the original porous anodic aluminum oxide substrate. Thermogravimetric analysis also showed the samples to be thermally stable up to 350 -ŚC. The separating power was investigated by HPLC and revealed a selective separation effect for the target molecules theobromine. The separation factor is 5.37
Template and target information: theobromine
Author keywords: Molecularly imprinted film, Layered double hydroxide, RAFT polymerization, CHEMICAL SEPARATION