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Citation: BAI Xu-Duo, ZHANG Zhi-Qian, CHEN Jiu-Jiang, HOU Hai-Ge, JIN Dan-Dan, CHEN Jiu-Shun. Synthesis and Characterization of Azo-chromophore Anchored Polyurethanes[J]. Chinese Journal of Applied Chemistry, ;2000, 17(1): 87-89. shu

Synthesis and Characterization of Azo-chromophore Anchored Polyurethanes

1.
1. Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150006;
2.
2. Department of Chemistry, Heilongjiang University, Harbin

Received Date: 14 July 1999
Available Online: 2 December 1999

The azo-chromophore anchored polyurethanes were synthesized by azo coupling of 4-nitrobenzenediazonium tetrafluoroborate and reacting the obtained 6-nitrobenzothiazole-2-diazoniun tetrafluoroborate with polyurethane in dimethylforamide in the presence of HAc and its sodium salt. The polyurethanes were characterized by IR, UV-Vis and ¹H NMR spectra.The method has the advantages of simplicity and facility in preparing polyurethane NLO materials with different chromophores.
- polyurethane,
- azo coupling,
- azo chromophore,
- second-order nonlinear optical material,
- preparation
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