| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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The Effect of Orientation Relaxation on Polymer Melt Crystallization Studied by Monte Carlo Simulations |
| WANG Mao-Xiang |
| School of Science, Nanjing University of Science and Technology, Nanjing 210094 |
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| Cite this article: |
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WANG Mao-Xiang 2009 Chin. Phys. Lett. 26 076103 |
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Abstract We use dynamic Monte Carlo simulations to study the athermal relaxation of bulk extended chains and the isothermal crystallization in intermediately relaxed melts. It is found that the memory of chain orientations in the melt can significantly enhance the crystallization rates. The crystal orientation and lamellar thickness essentially depend on the orientational relaxation. Moreover, there is a transition of the nucleation mechanism during the isothermal crystallization from the intermediately relaxed melts. These results explain the mechanism of the self-nucleation by orientation and suggest that in flow-induced polymer crystallization, the orientational relaxation of chains decides the crystal orientation.
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| Keywords:
61.25.Hq
82.60.Nh
61.50.Ks
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Received: 04 March 2009
Published: 02 July 2009
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| PACS: |
61.25.Hq
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82.60.Nh
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(Thermodynamics of nucleation)
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61.50.Ks
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(Crystallographic aspects of phase transformations; pressure effects)
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