Xu, Xiaofei and Cristancho, Diego E. and Costeux, Stéphane and Wang, Zhen-Gang (2012) Jump Enhancement of Nucleation in Polymer and Carbon Dioxide Mixtures by Metastable Phase Transition. In: Engineering Sciences and Fundamentals. American Institute of Chemical Engineers , New York, NY, pp. 627-630. ISBN 978-0-8169-1073-1. https://resolver.caltech.edu/CaltechAUTHORS:20130603-102554449
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Abstract
We combine a newly developed density-functional theory with string method to calculate minimum free energy path of bubble nucleation in compressible poly(methyl methacrylate)-CO_2 mixtures. As increasing initial pressure in the vicinity of a metstable phase transition, the terminal nucleated state jumps from the branch of CO_2- rich-vapor phase to the branch of CO_2 -rich-liquid phase with a jump reduction for free energy barrier and radius of critical nucleus. This result suggests that the nucleation rate is enhanced as a jump discontinuous function of the initial pressure around the boundary of metastable phase transition.
Item Type: | Book Section | ||||||
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Additional Information: | © 2012 AIChE. The Dow Chemical Company is acknowledged for funding and for permission to publish the results. The computing facility on which the calculations were performed is supported by an NSF-MRI grant, Award No. CHE-1040558. | ||||||
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Classification Code: | PACS: 82.60.Nh; 64.60.Q; 47.57.Bc | ||||||
Record Number: | CaltechAUTHORS:20130603-102554449 | ||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20130603-102554449 | ||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
ID Code: | 38752 | ||||||
Collection: | CaltechAUTHORS | ||||||
Deposited By: | Tony Diaz | ||||||
Deposited On: | 03 Jun 2013 19:22 | ||||||
Last Modified: | 03 Oct 2019 05:00 |
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