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The microstructure and anticorrosion performance of phytic acid-catalyzed polysilsesquioxane coatings

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Abstract

In this paper, the polysilsesquioxanes were prepared via the hydrolysis and condensation of methyltriethoxysilane, 3-glycidoxypropyltrimethoxysilane and tetraethoxysilane under the catalysis of phytic acid for the first time. Their microstructure and corrosion resistant performance were investigated by 13C NMR, 29Si NMR, GPC, SEM, electrochemical techniques and salt spray test, respectively. It was found that phytic acid could catalyze the sol–gel reaction more efficiently than hydrochloric acid, causing more T3 structures, and the phytic acid-catalyzed polysilsesquioxane coatings had excellent corrosion resistance performance.

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Acknowledgment

The financial support from Shanghai Special Nano Foundation for this research is appreciated.

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Authors and Affiliations

  1. Department of Materials Science and the Advanced Coatings Research Center of China Educational Ministry, Fudan University, Shanghai, 200433, P.R. China

    Wentao Xing, Bo You & Limin Wu

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  1. Wentao Xing
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  2. Bo You
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  3. Limin Wu
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Correspondence to Bo You or Limin Wu.

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Xing, W., You, B. & Wu, L. The microstructure and anticorrosion performance of phytic acid-catalyzed polysilsesquioxane coatings. J Sol-Gel Sci Technol 42, 187–195 (2007). https://doi.org/10.1007/s10971-007-1539-5

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  • DOI: https://doi.org/10.1007/s10971-007-1539-5

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