Preparation and nonlinear optical studies of a novel thermal stable polymer containing azo chromophores in the side chain

A novel bisfluoro NLO chromophore monomer, 4-[(4-cyanophenyl)diazenyl]phenyl-2,6-difluorobenzoate was synthesized via a two-step synthetic procedure. Azobenzene-functionalized poly(aryl ether) (azo-PAE) was prepared via a nucleophilic aromatic substitution polycondensation based on this monomer. The...

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Bibliographic Details
Published in:Dyes and pigments 2008, Vol.77 (1), p.223-228
Main Authors: Chen, Xingbo, Zhang, Jingjing, Zhang, Haibo, Jiang, Zhenhua, Shi, Guang, Li, Yunbo, Song, Yinglin
Format: Article
Language:English
Subjects:
Azo polymer
Chromophore
Poly(aryl ether)
Third-order nonlinear optics
Z-scan
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Summary:A novel bisfluoro NLO chromophore monomer, 4-[(4-cyanophenyl)diazenyl]phenyl-2,6-difluorobenzoate was synthesized via a two-step synthetic procedure. Azobenzene-functionalized poly(aryl ether) (azo-PAE) was prepared via a nucleophilic aromatic substitution polycondensation based on this monomer. The obtained polymer was characterized and evaluated by FT-IR, UV–vis, 1H NMR, DSC and TGA. The third-order NLO coefficient was measured by Z-scan technique. The results showed the azo-PAE has high glass transition temperature, good thermal stability and large third-order nonlinear susceptibility.
ISSN:0143-7208
1873-3743
DOI:10.1016/j.dyepig.2007.05.006