Thermal behavior and characterization of poly(1,3-phenylenebis(methylene)adipamide).
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概要
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Thermal degradation of poly[1,3-phenylenebis(methylene) adipamide] (MXD-6) was investigated by DTA-TG, FT-IR, TG-GC/MS, and mass spectroscopy. The DTA-TG/DTG curve showed that the thermal decomposition of MXD-6 occurred in two stages. MXD-6 melted at about 235°C and decomposed to the oligomer or monomer with a weight loss of about 40% in the temperature region from 330 to 400 °C during the first stage. A TG effluent gas was collected in a cold trap and then directly injected into a GC for separation, the MS for an unequivocal identification. The eleven effluent compounds from the thermal degradation of MXD-6 were identified. The main fragmentation mechanism by electron impact for MXD-6 consisted of two processes: simple cleavage and a rearrangement reaction. The activation energy of the thermal decomposition was estimated to be 230 during the first stage and 150 kJ mol<SUP>−1</SUP> during the second stage. From the value of the activation energy in each stage, the kinetic data for MXD-6 was elucidated.
- 公益社団法人 日本化学会の論文
著者
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Notoya Hisakimi
Faculty Of Engineering Toyama University
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Yoshimura Toshiaki
Faculty of Engineering, Toyama University
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Shimasaki Choichiro
Faculty of Engineering, Toyama University
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Sanagi Hisashi
Faculty of Engineering, Toyama University
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Unishi Akira
Faculty of Engineering, Toyama University
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Tsukurimichi Eiichi
Faculty of Engineering, Toyama University
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