Abstract: Molecularly imprinted polymers (MIP) have been synthesized using 17β-estradiol as template, 2-(trifluoromethyl) acrylic acid (TFMAA) as functional monomer and trimethylolpropane trimethacrylate (TRIM) as crosslinker by ultraviolet radiation (UV) method within a lower temperature range. This paper focused on the investigation of MIP thermodynamic index by HPLC system. Changes of thermodynamic index entropy (Δ H), enthalpy (Δ S* ) and Gibbs free energy (Δ G) in the process of imprinted separation were estimated. It was found that selective separation is enthalpy controlled. Further studies showed that the molecular recognition of imprinted molecules and their structure analogues also depend on how well the geometric cavity structures of MIP suite the structure of the imprinted molecules.
Template and target information: 17β-estradiol
Author keywords: chromatography, high pressure liquid phase, 17β-estradiol, molecular imprinted polymer, thermodynamics, 2-(trifluoromethyl) acrylic acid