引用本文:
曹万强, 王勇, 刘俊刁, 肖忠模, 李景德. 聚合物中激化的冷冻和热刺激[J]. 物理化学学报,
1997, 13(10): 921-924.
doi:
10.3866/PKU.WHXB19971011
Citation: Cao Wan-Qiang, Wang Yong, Liu Jun-Diao, Xiao Zhong-Mo, Li Jing-De. The Frozen and Thermally Stimulated Polarization in Polymer[J]. Acta Physico-Chimica Sinica, 1997, 13(10): 921-924. doi: 10.3866/PKU.WHXB19971011
Citation: Cao Wan-Qiang, Wang Yong, Liu Jun-Diao, Xiao Zhong-Mo, Li Jing-De. The Frozen and Thermally Stimulated Polarization in Polymer[J]. Acta Physico-Chimica Sinica, 1997, 13(10): 921-924. doi: 10.3866/PKU.WHXB19971011
聚合物中激化的冷冻和热刺激
English
The Frozen and Thermally Stimulated Polarization in Polymer
Abstract:
The thermally stimulated current of polypropylene is studied using methods of linear and step rising temperature, frozen charges, and residual polarization. For α and β peaks, the frozen charge method gives excellent resolving power and symmetry line shape. There are contributions of fast and slow polarization mechanisms to the thermally stimulated current, but the line shape is determined mainly by the slow mechanism. The slow polarizations originate from the interaction of the segment movement in a long chain with the bounded space charges.
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Key words:
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Polypropylene
- / Thermally stimulated current
- / Slow polarization
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