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).
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页码：569 / 573
页数：4
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  • [12] Tanner J E(undefined)undefined undefined undefined undefined-undefined
  • [13] Kulagina T P(undefined)undefined undefined undefined undefined-undefined
  • [14] Karnaukh G E(undefined)undefined undefined undefined undefined-undefined
  • [15] Kuzina A N(undefined)undefined undefined undefined undefined-undefined
  • [16] Smirnov L P(undefined)undefined undefined undefined undefined-undefined
  • [17] Kulagina T P(undefined)undefined undefined undefined undefined-undefined
  • [18] Varakina V A(undefined)undefined undefined undefined undefined-undefined
  • [19] Kuzina A N(undefined)undefined undefined undefined undefined-undefined
  • [20] Kimmich R(undefined)undefined undefined undefined undefined-undefined
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