Journal of Materials Science

, Volume 48, Issue 9, pp 3370–3377 | Cite as

Molecular design and synthesis of branched bichromophore-attached linear fluorinated polyimides for nonlinear optical applications

  • Man He
  • Yuming Zhou
  • Yafeng Gao
  • Yongjuan Wang
  • Xiaohai Bu
  • Tao Zhang
  • Yiping Cui
  • Tong Zhang


A branched structure bichromophore was developed to increase the nonlinearity of optical polymers. The branched bichromophore was incorporated into the polymer backbone to prepare a novel nonlinear optical (NLO) side-chain fluorinated polyimide with high optical nonlinearity and good thermal stability. The novel nonlinear optical side-chain fluorinated polyimide exhibits a large electro-optic (E-O) coefficient (γ33) (34 pm/V at 1550 nm) which is larger than that of the conventional side-chain optical polyimide. This is mainly attributable to an increased chromophore concentration and high polarizing efficiency derived from the branched structure. The branched structure of the bichromophore is incorporated into a polymer backbone to result in a high chromophore concentration. Moreover, the three-dimensional (3D) architecture and large molecular size of the branched bichromophore can spatially shield from strong interchromophore electrostatic interactions to enhance the poling efficiency. The side-chain fluorinated polyimide exhibits excellent solubility in common organic solvents, good film-forming property, high glass-transition temperature (T g) (190 °C) and thermal stability up to 235 °C.


Polyimide Cyclopentanone Support Information Figure Poling Efficiency Linear Optical Property 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



The authors are grateful to the National Nature Science Foundation of China (51077013) for financial supports.

Supplementary material

10853_2012_7120_MOESM1_ESM.pdf (143 kb)
1H-NMR spectrum of DEHNT, FT-IR spectrum of FPI- DEHNT, 1H-NMR spectrum of FPI- DEHNT, GPC plot of FPI-DEHNT, DSC curve of side-chain polyimide FPI-DEHNT and TGA of side-chain polyimide FPI-DEHNT and chromophore DEHNT are given in Online Resource 1 (PDF 142 kb)


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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Man He
    • 1
    • 2
  • Yuming Zhou
    • 1
    • 2
  • Yafeng Gao
    • 1
  • Yongjuan Wang
    • 1
  • Xiaohai Bu
    • 1
  • Tao Zhang
    • 1
  • Yiping Cui
    • 3
  • Tong Zhang
    • 3
  1. 1.School of Chemistry and Chemical EngineeringSoutheast UniversityNanjingChina
  2. 2.Jiangsu Optoelectronic Functional Materials and Engineering LaboratoryNanjingChina
  3. 3.Department of Electronic EngineeringSoutheast UniversityNanjingChina

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