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* PDF α Ͻñ ٶϴ. |
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1991 / ȣ: V.3,no.1,Mar |
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Decamethylene Spacer Thermotropic Copoly (ester amide)s ռ ؼ |
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Syntheses of Thermotropic Liquid-Crystalline Copoly (ester amide)s Containing a Decamethylene Spacer in the Main Chain and Their Properties |
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Song, Jin-Cherl (Department of Textile Eng., College of Eng., Pusan National University, Pusan 609-735) Kim, Kyung-Hwan (Department of Textile Eng., College of Eng., Pusan National University, Pusan 609-735) Uryu, Toshiyuki (Institute of Industrial Scienc |
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Song, Jin-Cherl (Department of Textile Eng., College of Eng., Pusan National University, Pusan 609-735) Kim, Kyung-Hwan (Department of Textile Eng., College of Eng., Pusan National University, Pusan 609-735) Uryu, Toshiyuki (Institute of Industrial Scienc |
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Song, Jin-Cherl (Department of Textile Eng., College of Eng., Pusan National University, Pusan 609-7 |
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Song, Jin-Cherl (Department of Textile Eng., College of Eng., Pusan National University, Pusan 609-7 |
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28 ~ 36 : 9 |
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Thermotropic behavior was observed in a number of aromatic copoly (ester amide)s containing a flexible spacer based on 4,4\\\' alkanes as an A component, di-acetylated p-aminophenol as a B, di-acetylated hydroquinone as a C gave the thermotropic copoly (ester amide)s containing a flexible spacer in the polymer backbone. 4,4\\\'-diamino-3,3\\\'-dimethoxybiphenyl as an amino group containing monomer as a D components. In the last case, up to 60 mol% of amide group was allowed to afford thermotropic liquid-crystallinity. The polymer structure and thermotropic nature were examined by solid-state and solution NMR spectroscopy, differential scanning calorimeter, polarizing microscopy, and IR spectroscopy. |
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