| 间歇加力试验法在聚合物分子运动研究中的应用 |
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| 引用本文： | 许晓秋,李景庆,张爽男,田晓明.间歇加力试验法在聚合物分子运动研究中的应用[J].天津大学学报(自然科学与工程技术版),2002,35(1):98-100. |
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| 作者姓名： | 许晓秋 李景庆 张爽男 田晓明 |
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| 作者单位： | 天津大学材料科学与工程学院，天津300072 |
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| 摘 要： | 采用间歇加力试验法研究非晶聚合物材料PMMA的分子运动－温度关系。由间歇加力形变－温度曲线，确定子特征温度Tg和Tt，同时进行了定量计算，包括初始高弹模量Eo，高弹态下单位体积缠结网链数N1,缠结点间平均分子量Mc，玻璃态时线热膨胀系数βg及高弹态时线热膨胀系数β。
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| 关 键 词： | 非晶聚合物 间歇加力试验法 温度－形变曲线 特征温度 定量计算 分子运动 线膨胀系数 |
| 文章编号： | 0493-2137(2002)01-0098-03 |
Application of Interval Load Method on Study of Polymjer Molecular Motion |
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| XU Xiao qiu,LI Jing qing,ZHANG Shuang nan,TIAN Xiao ming.Application of Interval Load Method on Study of Polymjer Molecular Motion[J].Journal of Tianjin University(Science and Technology),2002,35(1):98-100. |
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| Authors: | XU Xiao qiu LI Jing qing ZHANG Shuang nan TIAN Xiao ming |
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| Abstract: | The Interval load Method was adopted to study the relation between the molecular motion of amorphous PMMA and temperature .According to the temperature strain curve ,the characteristic temperatures of PMMA were obtained,and some other physical parameters were calculated,including the initial high elastic modulus,the number of entanglement chains in unit volume and the average molecular weight between entanglement points in high elastic state,and the linear thermal expansion coefficients above and below T g. |
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| Keywords: | amorphous polymer interval load temperature strain curve characteristic temperature quantitive calculation |
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