Effective relaxation time as a method for characterizing the relaxation spectra of polymers

被引:0
|
作者
Kuzub, LI [1 ]
Irzhak, VI [1 ]
机构
[1] Russian Acad Sci, Chernogolovka Branch, Inst Problems Chem Phys, Chernogolovka 142432, Moscow Oblast, Russia
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中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The physical meaning of the effective relaxation time as a quantity characterizing the relaxation spectra of polymers is discussed. For monodisperse polymers and their mixtures, some theoretical models and the plots of the relaxational elastic modulus versus frequency are analyzed. A qualitative relationship between the weight-average and number-average relaxation times and their ratio, on the one hand, and the structural and dynamic characteristics of polymer systems, on the other hand, is shown.
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页码:176 / 183
页数:8
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