| Brillouin散射研究交联聚苯乙烯的动态力学性质和弛豫过程 |
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| 引用本文： | 何天敬.Brillouin散射研究交联聚苯乙烯的动态力学性质和弛豫过程[J].中国科学技术大学学报,1988(2). |
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| 作者姓名： | 何天敬 |
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| 作者单位： | 中国科学技术大学近代化学系 |
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| 摘 要： | 用Brillouin散射研究了交联对聚苯乙烯的动态力学性质的影响。除了观察到它们的高温(T>Tg)无定形弛豫外,还在交联的聚苯乙烯中发现了一种新的弛豫过程,其活化能为12kcal/mole左右。分析了它们所关联的分子运动机制。
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| 关 键 词： | Brillouin散射 聚苯乙烯 交联 动态力学性质 弛豫 |
Brillouin Scattering Studies of the Dynamic Mechanical Properties and Relaxations in the Cross-linked Polystyrene |
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| He Tianjing.Brillouin Scattering Studies of the Dynamic Mechanical Properties and Relaxations in the Cross-linked Polystyrene[J].Journal of University of Science and Technology of China,1988(2). |
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| Authors: | He Tianjing |
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| Institution: | He Tianjing Department of Modern Chemistry |
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| Abstract: | The Brillouin scattering was used to investigate the effect of crosslin-king on the dynamic mechanical properties of polystyrene. It was found thatthere is a new relaxation in the cross-linked polystyrene besides the hightemperature (T>Tg) amorphous relaxation. The activation energy of thisrelaxation was determined to be about 12 kcal/mole. The molecular origins ofthese relaxations were proposed. |
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| Keywords: | Brillouin scattering polystyrene crosslinking dynamic mechanical property relaxation |
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