Synthesis of Polysilsesquioxanes with Double-Decker Silsesquioxane Repeating Units

Authors

  • M. A. Hoque University of Rajshahi, Bangladesh
  • Y. Kawakami Japan Advanced Institute of Science and Technology, Nomi, Ishikawa 923-1292 Japan

DOI:

https://doi.org/10.3329/jsr.v8i2.26791

Keywords:

Polysilsesquioxane, Double-decker silsesquioxane, Cross-dehydrocoupling reaction, Thermally stable polymer, Polycondensation.

Abstract

Polysilsesquioxanes were synthesized with end functional double-decker silsesquioxanes (DDSQ) and the polymers were characterized with 1H NMR, 29Si NMR and size exclusion chromatography (SEC). Polysilsesquioxane containing iso-butyl end capped DDSQ showed better solubility compared to that of methyl end capped DDSQ. Thermal properties investigated with TGA showed that the polymers exhibited exceptionally high stabilities in the range of 470-530°C even in both nitrogen and air atmosphere. The average residual weights of the polymers at 760°C were around 80% in the nitrogen atmosphere.

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Author Biography

M. A. Hoque, University of Rajshahi, Bangladesh

Dept. of Materials Science and Engineering

University of Rajshahi

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Published

2016-05-01

How to Cite

Hoque, M. A., & Kawakami, Y. (2016). Synthesis of Polysilsesquioxanes with Double-Decker Silsesquioxane Repeating Units. Journal of Scientific Research, 8(2), 217–227. https://doi.org/10.3329/jsr.v8i2.26791

Issue

Section

Section B: Chemical and Biological Sciences