| PTS单晶的介电性质 |
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| 引用本文： | 阮耀钟,李立平,陈友君,何平笙.PTS单晶的介电性质[J].物理学报,1987,36(11):1503-1508. |
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| 作者姓名： | 阮耀钟 李立平 陈友君 何平笙 |
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| 作者单位： | (1)中国科学技术大学物理系; (2)中国科学技术大学应用化学系 |
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| 摘 要： | 测量了一维聚合物PTS单晶从77K到273K沿分子链方向的介电性质。由介电常数的反常观察到在195K发生二级相变,从高温的非极性态转变为低温的极性态。发现介电损耗在150K和100K有两个峰。用侧链分子的三种运动方式解释了上述结果。
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| 收稿时间： | 1986-12-01 |
DIELECTRIC PROPERTIES OF POLYBIS-(p-TOLUENE SULFONATE)-2,4-HEXADIYNE-l,6-DIAL (PTS) SINGLE CRYSTAL |
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| RUAN YAO-ZHONG,LI LI-PING,CHEN YOU-JUN and HE PING-SHENG.DIELECTRIC PROPERTIES OF POLYBIS-(p-TOLUENE SULFONATE)-2,4-HEXADIYNE-l,6-DIAL (PTS) SINGLE CRYSTAL[J].Acta Physica Sinica,1987,36(11):1503-1508. |
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| Authors: | RUAN YAO-ZHONG LI LI-PING CHEN YOU-JUN and HE PING-SHENG |
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| Abstract: | Dielectric properties of one-dimensoional polymer PTS single crystal have been measured along the chain direction in the temperature rang 77-273 K. A second-order phase transition from a high temperature nonpolar state to a low temperature polar state accompanied by an anomaly in the dielectric constant is observed at 195 K. Two peaks in the dielectric loss are found at 150 K and 100 K. The results are explained by a model which invokes three modes of side group motions. |
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