| 聚2,6-萘二酸乙二酯的热行为 |
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| 引用本文： | 杨始坤. 聚2,6-萘二酸乙二酯的热行为[J]. 合成技术及应用, 1998, 13(3): 1-3 |
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| 作者姓名： | 杨始坤 |
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| 作者单位： | 中山大学高分子研究所!广州,510275 |
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| 摘 要： | 用差示扫描量热法考察了聚 2 ,6 -萘二酸乙二酯 (PEN)的热行为 ,测得它的玻璃化转变温度 (Tg)为 118℃ ,冷结晶峰温 (Tc)为 2 2 4℃ ,熔融吸热峰温为 2 6 2℃ ,熔体结晶峰温为 2 2 5～ 2 30℃ ,表明在潮湿环境放置时 ,其玻璃化转变温度下降 ,并可能观察到双冷结晶峰。
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| 关 键 词： | 聚2,6-萘二酸乙二酯 热行为 玻璃化转变温度 冷结晶 |
THERMAL BEHAVIOR OF POLY ( ETHYLENE2 ,6-NAPTHALENE DICARBOXYLATE) |
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| Yang Shikun. THERMAL BEHAVIOR OF POLY ( ETHYLENE2 ,6-NAPTHALENE DICARBOXYLATE)[J]. Synthetic Technology and Application, 1998, 13(3): 1-3 |
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| Authors: | Yang Shikun |
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| Abstract: | The thermal behavior of poly (ethylene 2 ,6 - napthalene dicarboxylate) has been studied by differential scanning caloriimetry(DSC) .The correlation temperature;Tg=1 1 8℃ ,Tc= 2 2 4℃ ,Tm=2 6 2℃ ,Tm,c=2 2 5～ 2 30℃ ,Td=370～ 375℃ of poly (ethylene 2 ,6 - napthalene dicarboxylate) have been obtained.It is shown that the glass transition temperature(Tg) reduced and doublecrystallization peaks are observed in DSC curves of poly(ethyene2 ,6 - napthalene dicarboxylate) samples laid in moist environment for a longer time. |
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| Keywords: | poly (ethylene2 6 - napthalene dicarboxylate) thermal behavior glass transition temperature cold- crystallization |
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