Size distribution of folded chain crystal nuclei of polyethylene on active centers
Journal of Chemical Physics Volume 134 Issue 11
Page 114904-1-114904-5
published_at 2011-03-17
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Title ( eng ) |
Size distribution of folded chain crystal nuclei of polyethylene on active centers
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Creator |
Kozisek Zdenek
Okada Kiyoka
Demo Pavel
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Source Title |
Journal of Chemical Physics
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Volume | 134 |
Issue | 11 |
Start Page | 114904-1 |
End Page | 114904-5 |
Abstract |
Kinetic equations describing temporal evolution of the size distribution of crystalline nuclei of folded chain polyethylene on active centers are solved numerically. Basic characteristics of nucleation processes (the total number of supercritical nuclei and the size distribution of nuclei) are determined and compared with the experimental data. It is shown that even though the total number of supercritical nuclei coincides with the experimental data, the size distribution prediction fails. This is caused by the fact that the total number of nuclei (usually used in analysis of the experimental data), in contrast to the size distribution of nuclei, represents an integral quantity. Using the experimental data of the steady state size distribution of nuclei enables us to determine thermodynamic parameters (especially interfacial energies) of the studied system more precisely and consequently to correct kinetic parameters to get coincidence of kinetic model with the experimental data in both, the total number of supercritical nuclei and also the size distribution of nuclei.
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NDC |
Physics [ 420 ]
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Language |
eng
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Resource Type | journal article |
Publisher |
American Institute of Physics
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Date of Issued | 2011-03-17 |
Rights |
Copyright (c) 2011 American Institute of Physics.
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Publish Type | Version of Record |
Access Rights | open access |
Source Identifier |
[ISSN] 0021-9606
[DOI] 10.1063/1.3571457
[NCID] AA00694991
[DOI] http://dx.doi.org/10.1063/1.3571457
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