Application of a probability model for relaxation to the dielectric alpha- and beta-relaxation of amorphous polyethylene terephthalate

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	Application of a probability model for relaxation to the dielectric alpha- and beta-relaxation of amorphous polyethylene terephthalate
	H. Z. Zhuang; X. W. Zou; Z. Z. Jin; D. C. Tian
	1998
发表期刊	Journal of Physics-Condensed Matter
ISSN	0953-8984
卷号	10 期号:2 页码:445-449
摘要	A probability model (PM) developed recently, which is an alternative to the conventional Havriliak-Negami (HN) dispersion function for polymer systems, is applied for the first time to the study of the dielectric alpha- and beta-relaxation of amorphous polyethylene terephthalate (PET). It has been found that the temperature dependence of the maxima of the imaginary part of the dielectric function and of the half-width of the distribution in the PM of the alpha-relaxation exhibit Vogel-Fulcher-type temperature behaviour; the temperature dependence of the maxima of the imaginary part of the dielectric function of the beta ation is proportional to the ratio of the gauche content to the trans content of the ethylene glycol linkages in PET. Finally, the mechanisms of the alpha- and beta-relaxation are elucidated concisely.
部门归属	wuhan univ, dept phys, wuhan 430072, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;zou, xw (reprint author), wuhan univ, dept phys, wuhan 430072, peoples r china
关键词	Kohlrausch-williams-watts Domain Havriliak-negami
URL	查看原文
WOS记录号	WOS:000071819100023
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37932
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. Z. Zhuang,X. W. Zou,Z. Z. Jin,et al. Application of a probability model for relaxation to the dielectric alpha- and beta-relaxation of amorphous polyethylene terephthalate[J]. Journal of Physics-Condensed Matter,1998,10(2):445-449.
APA	H. Z. Zhuang,X. W. Zou,Z. Z. Jin,&D. C. Tian.(1998).Application of a probability model for relaxation to the dielectric alpha- and beta-relaxation of amorphous polyethylene terephthalate.Journal of Physics-Condensed Matter,10(2),445-449.
MLA	H. Z. Zhuang,et al."Application of a probability model for relaxation to the dielectric alpha- and beta-relaxation of amorphous polyethylene terephthalate".Journal of Physics-Condensed Matter 10.2(1998):445-449.