A chiral polymer as chromo-fluorescence and CD response sensor for specific recognition of fluoride

作者：Bai, Jianwei^*; Yin, Hongyan; Zhang, Yunan; Zhang, Chunhong; Liu, Lijia; Xu, Xiaodong

来源：European Polymer Journal, 2017, 87: 380-388.

DOI：10.1016/j.eurpolymj.2016.12.029

• Chiral polymer
• Sensor
• Anion recognition
• RAFT polymerization

A new kind of polymeric chemosensor containing chiral phenylglycine and 1-phenethylamine moieties in the side chain was synthesized by reversible addition fragmentation chain transfer (RAFT) polymerization, which can guarantee controllable molecular weight, narrow molecular weight distribution, and precise polymer structure. As a chemosensor, the resulting polymers showed UV-vis and fluorescence spectra changed upon addition of F- relative to other anions including Cl-, Br-, HSO4-, AcO-, H2PO4-, and N-3(-). When F- was added at high concentrations, the polymer gave detectable color change from colorless to yellow, which was attributed to the deprotonation process of the acylamino N-H group and the mechanism was supported by the H-1 NMR titration. Furthermore, the addition of F- also can lead to a most pronounced change of CD spectra of the chiral polymer, indicating this kind chiral sensor can also be used as a probe for selective recognition of F- based on CD spectra.

• 出版日期2017-2
• 单位哈尔滨工程大学