화학공학소재연구정보센터
Polymer, Vol.93, 9-13, 2016
Chiral fluorescence polyethers based on BINOL for enantioselective recognition of phenylalanine anion
Series of polyethers with different configurations were synthesized from chiral BINOL and optical epichlorohydrin. The optical behavior of the obtained polyethers is evaluated with specific optical rotation, UV-vis spectroscopy, circular dichroism (CD) and fluorescence spectroscopy. Thermogravimetric analysis (TGA) reveals the polyethers a good thermal stability. The fluorescence responses of the chiral polyethers on chiral phenylalanine anion were investigated. The sensors (S,S)-4 and (R,R)-4 showed high enantioselective fluorescent sensing ability to phenylalanine anion. The value of enantiomeric fluorescence difference ratio (ef) reached to 6.29. (C) 2016 Elsevier Ltd. All rights reserved.