| 小角X射线散射法测定PET和PBT的玻璃化温度EI |
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| 引用本文： | 李思滔,诸琢雄.小角X射线散射法测定PET和PBT的玻璃化温度EI[J].高分子材料科学与工程,1991,7(6):111-114. |
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| 作者姓名： | 李思滔 诸琢雄 |
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| 作者单位： | 江苏省理化测试中心，河海大学 南京 210002 |
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| 摘 要： | 根据Fischer和Kloos提出的高聚物在T_g值时,SAXS强度与温度的关系不是线性的原理和Dulser测定结晶高聚物T_g值的计算方法,测定了PET和PBT的T_g值,并对本方法的样品处理及测试条件的影响进行了讨论。
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| 关 键 词： | X射线散射 PET PBT 玻璃化温度 small-angle X-ray scattering glass transition temperature coefficient of thermal expansion |
DETERMINATION OF THE GLASS TRANSITION TEMPERATURE OF PET AND PBT BY SMALL-ANGLE X-RAY SCATTERING |
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| Li Sitao.DETERMINATION OF THE GLASS TRANSITION TEMPERATURE OF PET AND PBT BY SMALL-ANGLE X-RAY SCATTERING[J].Polymer Materials Science & Engineering,1991,7(6):111-114. |
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| Authors: | Li Sitao |
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| Abstract: | The small-angle X-ray scattering of seimicrystalline polymer is propertional to the square of the difference bet-ween the electron densities of two phases and so increases with temperature. Fischer and Kloos have shown, this increase in discontinuous at the glass transition temperature, Tg. The Tg values of PET and PBT have been determined by the calculate method of Duiser. Finally, effect on the specimens prepared under certain crystallization conditions has been discussd. |
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| Keywords: | small-angle X-ray scattering glass transition temperature coefficient of thermal expansion |
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