Thermal Decomposition of Poly(methylphenylsilane)
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概要
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The thermal decomposition of poly(methylphenylsilane) was performed at constant heating rates and isothermal conditions. The evolved gases were studied by ionization-threshold mass spectroscopy. Pyrolysis under isothermal conditions reveals that the decomposition of poly(methylphenylsilane) is a type of depolymerization that has a first-order reaction. Kinetic analysis of the evolution spectra of CH3–Si–C6H5 radicals, phenyl and methyl substituents reveals the mechanism and activation energies of the decomposition reactions in main chains and substituents. It is found that the decomposition of main chains is a dominant reaction and results in the weight loss of approximately 90%. The effusion of phenyl and methyl substituents occurs in the two processes of rearrangement of main chains and the formation of stable Si–C containing residuals.
- INSTITUTE OF PURE AND APPLIED PHYSICSの論文
- 2000-03-15
著者
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Zhang Mei
Department Of Chemistry Wuhan University
-
Pan Lujun
Department Of Physics And Electronics Osaka Prefecture University
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Nakayama Yoshikazu
Department Of Electrical Engineering College Of Engineering University Of Osaka
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Pan Lujun
Department of Physics and Electronics, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan
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Zhang Mei
Department of Physics and Electronics, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan
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