Synthesis, characterization, and properties of a polyhedral oligomeric octadiphenylsulfonylsilsesquioxane

Ziqian Li; Rongjie Yang

doi:10.1002/app.40892

Synthesis, characterization, and properties of a polyhedral oligomeric octadiphenylsulfonylsilsesquioxane

Ziqian Li, Rongjie Yang^*

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

A novel polyhedral oligomeric octadiphenylsulfonylsilsesquioxane (ODPSS) was synthesized from octaphenylsilsesquioxane and benzenesulfonyl chloride via a Friedel-Crafts reaction with a high yield. ODPSS was identified by Fourier transform infrared spectroscopy, ¹H-NMR, ¹³C-NMR, ²⁹Si-NMR, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS), wide-angle X-ray diffraction, and elemental analysis to be a kind of polyhedral oligomeric silsesquioxane of a T ₈R₈ structure. ODPSS exhibited superior thermal stability according to thermogravimetric analysis. Its initial thermal decomposition temperature (T_onset) was at 491°C in air and 515°C in nitrogen. Thermal and mechanical properties of epoxy resin (EP) composites with ODPSS added were studied by differential scanning calorimetry and tensile testing. The results show that the incorporation of ODPSS at a low loading content not only improved the glass-transition temperature of the EP composites but also enhanced their tensile strength.

Original language	English
Article number	40892
Journal	Journal of Applied Polymer Science
Volume	131
Issue number	20
DOIs	https://doi.org/10.1002/app.40892
Publication status	Published - 15 Oct 2014

Keywords

properties and characterization
synthesis and processing
thermal properties

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title = "Synthesis, characterization, and properties of a polyhedral oligomeric octadiphenylsulfonylsilsesquioxane",

abstract = "A novel polyhedral oligomeric octadiphenylsulfonylsilsesquioxane (ODPSS) was synthesized from octaphenylsilsesquioxane and benzenesulfonyl chloride via a Friedel-Crafts reaction with a high yield. ODPSS was identified by Fourier transform infrared spectroscopy, 1H-NMR, 13C-NMR, 29Si-NMR, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS), wide-angle X-ray diffraction, and elemental analysis to be a kind of polyhedral oligomeric silsesquioxane of a T 8R8 structure. ODPSS exhibited superior thermal stability according to thermogravimetric analysis. Its initial thermal decomposition temperature (Tonset) was at 491°C in air and 515°C in nitrogen. Thermal and mechanical properties of epoxy resin (EP) composites with ODPSS added were studied by differential scanning calorimetry and tensile testing. The results show that the incorporation of ODPSS at a low loading content not only improved the glass-transition temperature of the EP composites but also enhanced their tensile strength.",

keywords = "properties and characterization, synthesis and processing, thermal properties",

author = "Ziqian Li and Rongjie Yang",

year = "2014",

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doi = "10.1002/app.40892",

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AU - Li, Ziqian

AU - Yang, Rongjie

PY - 2014/10/15

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N2 - A novel polyhedral oligomeric octadiphenylsulfonylsilsesquioxane (ODPSS) was synthesized from octaphenylsilsesquioxane and benzenesulfonyl chloride via a Friedel-Crafts reaction with a high yield. ODPSS was identified by Fourier transform infrared spectroscopy, 1H-NMR, 13C-NMR, 29Si-NMR, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS), wide-angle X-ray diffraction, and elemental analysis to be a kind of polyhedral oligomeric silsesquioxane of a T 8R8 structure. ODPSS exhibited superior thermal stability according to thermogravimetric analysis. Its initial thermal decomposition temperature (Tonset) was at 491°C in air and 515°C in nitrogen. Thermal and mechanical properties of epoxy resin (EP) composites with ODPSS added were studied by differential scanning calorimetry and tensile testing. The results show that the incorporation of ODPSS at a low loading content not only improved the glass-transition temperature of the EP composites but also enhanced their tensile strength.

AB - A novel polyhedral oligomeric octadiphenylsulfonylsilsesquioxane (ODPSS) was synthesized from octaphenylsilsesquioxane and benzenesulfonyl chloride via a Friedel-Crafts reaction with a high yield. ODPSS was identified by Fourier transform infrared spectroscopy, 1H-NMR, 13C-NMR, 29Si-NMR, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS), wide-angle X-ray diffraction, and elemental analysis to be a kind of polyhedral oligomeric silsesquioxane of a T 8R8 structure. ODPSS exhibited superior thermal stability according to thermogravimetric analysis. Its initial thermal decomposition temperature (Tonset) was at 491°C in air and 515°C in nitrogen. Thermal and mechanical properties of epoxy resin (EP) composites with ODPSS added were studied by differential scanning calorimetry and tensile testing. The results show that the incorporation of ODPSS at a low loading content not only improved the glass-transition temperature of the EP composites but also enhanced their tensile strength.

KW - properties and characterization

KW - synthesis and processing

KW - thermal properties

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Synthesis, characterization, and properties of a polyhedral oligomeric octadiphenylsulfonylsilsesquioxane

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Keywords

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