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Synthesis and characterization of electro-optic waveguide material polyurethane-imides

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Abstract

The electro-optic (EO) polymers of Y-type polyurethane-imides (PUI-1 and PUI-2) were synthesized by reaction of monomer azo-based chromophores, phenyl diisocyanate and aromatic dianhydride, based on polycondensation mechanism. Molecular structure characteristics for the polymers were evidenced by 1HNMR, FTIR, elemental analysis and gel permeation chromatography. The polymers exhibited a glass transition temperature (Tg) of 185 °C and 192 °C and a temperature of 5% weight loss at 256 °C and 325 °C and showed EO coefficient, γ33, of 43 pm/V and 51 pm/V at 1550 nm wavelength. A type of single-mode embedded PUI polymeric inverted rib waveguide Mach-Zehnder (MZ) interferometer electro-optic modulators was fabricated and measured, and exhibiting favorable electro-optical modulation response and the average propagation loss of the waveguide was less than 2.0 dB/cm at 1550 nm. The experimental results indicated that the PUI were promising candidates for the preparation of comprehensive performance excellent EO polymer waveguide materials, due to their large nonlinear optic effects, thermal stability, good processability and low optical propagation loss.

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Acknowledgements

This work is supported by Scientific Research Foundation of Huainan Normal University under grant no.2016xj03zd, NSFC under grant number 61307066, 61450110442.

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Authors and Affiliations

  1. School of Chemistry and Materials Engineering, Huainan Normal University, Huainan, 232038, China

    Long-De Wang, Ling Tong & Hua-Yin Sun

  2. Huainan Engineering Research Center for Fuel Cells and Anhui Key Laboratory of Low Temperature Co-fired Materials, Huainan, 232038, China

    Long-De Wang

  3. School of Electronic Science and Engineering, Southeast University, Nanjing, 210096, China

    Jie Tang & Tong Zhang

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  1. Long-De Wang
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  2. Ling Tong
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  3. Hua-Yin Sun
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  4. Jie Tang
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  5. Tong Zhang
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Correspondence to Long-De Wang.

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Wang, LD., Tong, L., Sun, HY. et al. Synthesis and characterization of electro-optic waveguide material polyurethane-imides. J Polym Res 25, 47 (2018). https://doi.org/10.1007/s10965-018-1450-5

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  • DOI: https://doi.org/10.1007/s10965-018-1450-5

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