New Ethynylphenylborasilsesquioxanes-Their Reactivity and Behavior during Thermal Decomposition
Miłosz Frydrych1,2, Bogna Sztorch2, Robert E Przekop2
1Faculty of Chemistry, Adam Mickiewicz University, 8 Uniwersytetu Poznańskiego, 61-614 Poznań, Poland.
Abstract:
In this paper, a new type of borasilsesquioxanes was synthesized through a condensation process, and its reactivity in catalytic hydrosilylation reactions with silanes, siloxanes, and silsesquioxanes was investigated. The obtained compounds were mostly obtained in >90% yield. They were fully characterized using spectroscopic (1H, 13C, 29Si NMR) and spectrometric (MALDI-TOF-MS) methods. The next stage of the research involved studying the thermogravimetric properties of the borasilsesquioxanes. By analyzing the different stages of decomposition using spectroscopic techniques (NMR, ATR-FTIR, Raman) and microscopic imaging, it was found that the structure of the borasilsesquioxanes changed during the pyrolysis process and polymer compounds were formed.
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