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Ordering simulation of high thermal conductivity epoxy resins

Ordering simulation of high thermal conductivity epoxy resins In this work, we performed molecular dynamics simulations of liquid-crystalline epoxy resins using the simulation system OCTA in combination with J-OCTA. One molecule was modeled as a diamine, the ends of which are connected to derivatives of diepoxy mesogens. The number of molecules in the system was eight for the present simulation. The molecular ends were drawn by an external force in order to generate a well-aligned initial structure. We relaxed the system after removing the external force and calculated statistical average. The results exhibited an even–odd effect of density and alignment order for the number of methylene units in the mesogenic structure. The obtained alignment order of the epoxy molecules showed a strong correlation with the experimentally obtained thermal conductivity. Finally, we proposed a protocol for using the present simulation to screen for epoxy molecules of higher thermal conductivity. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Polymer Journal Springer Journals

Ordering simulation of high thermal conductivity epoxy resins

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References (19)

Publisher
Springer Journals
Copyright
Copyright © 2013 by The Society of Polymer Science, Japan
Subject
Chemistry; Chemistry/Food Science, general; Polymer Sciences; Biomaterials; Surfaces and Interfaces, Thin Films; Bioorganic Chemistry
ISSN
0032-3896
eISSN
1349-0540
DOI
10.1038/pj.2012.163
Publisher site
See Article on Publisher Site

Abstract

In this work, we performed molecular dynamics simulations of liquid-crystalline epoxy resins using the simulation system OCTA in combination with J-OCTA. One molecule was modeled as a diamine, the ends of which are connected to derivatives of diepoxy mesogens. The number of molecules in the system was eight for the present simulation. The molecular ends were drawn by an external force in order to generate a well-aligned initial structure. We relaxed the system after removing the external force and calculated statistical average. The results exhibited an even–odd effect of density and alignment order for the number of methylene units in the mesogenic structure. The obtained alignment order of the epoxy molecules showed a strong correlation with the experimentally obtained thermal conductivity. Finally, we proposed a protocol for using the present simulation to screen for epoxy molecules of higher thermal conductivity.

Journal

Polymer JournalSpringer Journals

Published: Oct 3, 2012

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