NMR determination of topological structure and self-diffusion of linear polymers

被引：0

作者：

T. P. Kulagina

G. E. Karnaukh

L. P. Smirnov

A. N. Kuzina

机构：

[1] Institute of Problems of Chemical Physics of Russian Academy of Science,

来源：

Russian Journal of Physical Chemistry B | 2014年 / 8卷

关键词：

nuclear magnetic resonance; linear flexible polymers; physical entanglement network; stimulated echo; self-diffusion;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A general approach is proposed to calculate the attenuation of spin echo diffusion and the self-diffusion coefficients D of linear polymers with different average molecular weights Mw. It was shown that the changes in the topological structure of linear polymers resulted from the formation of a physical entanglement network at Mw > 105 are responsible for the experimentally observed anomalous diffusion D(Mw).

引用

页码：569 / 573

页数：4

共 25 条

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[10] Smirnov L P(undefined)undefined undefined undefined undefined-undefined

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