Acta Phys. -Chim. Sin. ›› 2010, Vol. 26 ›› Issue (11): 3073-3079.doi: 10.3866/PKU.WHXB20101127

• PHYSICAL CHEMISTRY OF MATERIALS • Previous Articles     Next Articles

Synthesis and Nonlinear Optical Properties of Fluorinated Polyimides Containing Benzothiazole

HE Man1, ZHOU Yu-Ming1, MIAO Jun-Liang1, LIU Cheng1, FANG Cheng1, CUI Yi-Ping2, ZHANG Tong2   

  1. 1. School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China;
    2. School of Electronic Science and Engineering, Southeast University, Nanjing 210096, P. R. China
  • Received:2010-05-20 Revised:2010-07-12 Published:2010-10-29
  • Contact: ZHOU Yu-Ming
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (60977038, 50873026, 60910187), Science and Technology Support Programof Jiangsu Province, China (BE2008129).


Hetarylazo chromophores were incorporated into fluorinated polyimide matrices to prepare novel nonlinear optical (NLO) side-chain fluorinated polyimides by the Mitsunobu reaction. Their structures were verified by Fourier transform infrared (FT-IR) spectra, UV-visible (UV-Vis) spectra, 1H nuclear magnetic resonance (1H NMR) spectra, and gel permeation chromatography (GPC). Thermal analysis results indicate that the side-chain polyimides have high glass transition temperatures (Tg) between 184 and 188℃ and thermal decomposition temperatures (Td) up to 322℃. The electro-optic coefficients (γ33) of the side-chain polyimides were measured by a simple reflection technique at 1550 nm. The fluorinated polyimide PI1 containing a benzothiazolylazoaniline chromophore possesses a high electro-optic coefficient of 15 pm·V-1.


Key words: Nonlinear optical, Fluorine-containing polyimide, Benzothiazolylazo chromophore molecular, Thermal stability, Electrooptic coefficient


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