Format:
Online-Ressource
ISSN:
1521-3919
Content:
Abstract: Physico‐mechanical properties of polymers in solid state, in particular conditions of their structural transformations, are substantially defined by existence and mobility of elementary nonlinear excitations. The localized oscillatory excitations (breathers), which have been revealed earlier in crystalline polyethylene alongside with topological solitons, turn out to be significant for thermodynamic studies as well as for investigation of energy transfer. We consider analytically the breathers in more complex crystalline polytetrafluoroethylene. It is shown that introduction of adequate variables allows to construct the continuum model describing spatially localized excitations with several internal degrees of freedom. Characteristic parameters of breathers and conditions of their mobility are defined.
In:
volume:21
In:
number:8
In:
year:2012
In:
pages:516-528
In:
extent:13
In:
Macromolecular theory and simulations, Weinheim : Wiley-VCH, 1992-, 21, Heft 8 (2012), 516-528 (gesamt 13), 1521-3919
Language:
English
DOI:
10.1002/mats.201100115
URN:
urn:nbn:de:101:1-2023022212293199213069
URL:
https://doi.org/10.1002/mats.201100115
URL:
https://nbn-resolving.org/urn:nbn:de:101:1-2023022212293199213069
URL:
https://d-nb.info/1281652326/34
URL:
https://doi.org/10.1002/mats.201100115
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