Chinese Journal of Applied Chemistry ›› 2016, Vol. 33 ›› Issue (1): 53-62.DOI: 10.11944/j.issn.1000-0518.2016.01.150162

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Synthesizing and Bonding Bidentate Schiff Base Ligand on Side Chain of Polysulfone and Preliminary Exploration of Luminescence Property of Functionalized Polysulfone-Tb(Ⅲ) Complexes

ZHANG Dandan,ZHA Xianyu,GAO Baojiao()   

  1. Department of Chemical Engineering,North University of China,Taiyuan 030051,China
  • Received:2015-05-11 Accepted:2015-10-08 Published:2016-01-05 Online:2016-01-05
  • Contact: GAO Baojiao
  • Supported by:
    Supported by the Shanxi Province Science Foundation for Youths(No.2013021012-3)

Abstract:

The esterification of chloromethylated polysulfone(CMPSF) with glyoxylic acid(GA) afforded aldehyde(AL) modified PSF-AL. Subsequent condensation of PSF-AL with 3-aminopyridine led to bidentate Schiff base ligand-functionalized PSF-AA. The chemical structure of PSF-AA was characterized by FTIR and 1H NMR spectra. The binary polymer-rare earth complexes of PSF-(AA)3-Tb(Ⅲ) and PSF-(AA)3-Eu(Ⅲ) were prepared and their photoluminescence properties were preliminarily explored. Optimized esterification between CMPSF and GA were performed in N,N-dimethylacetamide at 75 ℃. The macromolecular PSF-AA does not exhibit sensitization towards Eu(Ⅲ) ion, whereas PSF-AA can strongly sensitize the fluorescence emission of Tb(Ⅲ) ion. The complex PSF-(AA)3-Tb(Ⅲ) emits characteristic green fluorescence of Tb(Ⅲ) ion.

Key words: polysulfone, polymer-rare earth complex, bidentate schiff base ligand, sensitization, Tb(Ⅲ) ion