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A Simple Field-Theoretic Simulation Method for Compressible Block Copolymer Systems

Cho, Junhan and Wang, Zhen-Gang (2006) A Simple Field-Theoretic Simulation Method for Compressible Block Copolymer Systems. Macromolecules, 39 (13). pp. 4576-4584. ISSN 0024-9297. doi:10.1021/ma052565r.

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A simple field-theoretic simulation method based on a compressible random-phase approximation (RPA) theory has been suggested to understand the self-assembly behavior and its pressure responses of compressible block copolymer systems. Finite compressibility is incorporated in the free energy functional for the dissipative dynamics through effective RPA interactions that account for the excluded volume and the attractive nonbonded interactions. It was shown that basic equation-of-state parameters completely characterizing given block components readily yield stable and metastable morphologies without any presumed symmetry over a wide range of temperature−pressure−composition space for copolymer melts in unconfined or confined geometry. It was demonstrated that the simulation tool is capable of predicting in a unified way block copolymer phase behavior, not only exhibiting nanoscale ordering either upon cooling or reversely upon heating, but also revealing barotropicity and baroplasticity.

Item Type:Article
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Wang, Zhen-Gang0000-0002-3361-6114
Additional Information:© 2006 American Chemical Society. Received 1 December 2005. Published online 27 May 2006. Published in print 1 June 2006. This work was supported by the Korea Research Foundation Grant (KRF-2005-013-D00020). J.C. acknowledges Dr. Y. Bohbot-Raviv for sharing the code for incompressible block copolymer systems.
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Korea Research FountdationKRF-2005-013-D00020
Issue or Number:13
Record Number:CaltechAUTHORS:20170724-095313046
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Official Citation:A Simple Field-Theoretic Simulation Method for Compressible Block Copolymer Systems Junhan Cho and Zhen-Gang Wang Macromolecules 2006 39 (13), 4576-4584 DOI: 10.1021/ma052565r
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:79293
Deposited By: Ruth Sustaita
Deposited On:24 Jul 2017 18:37
Last Modified:15 Nov 2021 17:47

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