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  Elastic stresses reverse Ostwald ripening

Rosowski, K. A., Vidal-Henriquez, E., Zwicker, D., Style, R. W., & Dufresne, E. R. (2020). Elastic stresses reverse Ostwald ripening. Soft Matter, 16, 5892-5897. doi:10.1039/D0SM00628A.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-99BF-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-BB92-2
Genre: Journal Article

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 Creators:
Rosowski, Kathryn A., Author
Vidal-Henriquez, Estefania1, Author              
Zwicker, David1, Author              
Style, Robert W., Author
Dufresne, Eric R., Author
Affiliations:
1Max Planck Research Group Theory of Biological Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2516693              

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 Abstract: When liquid droplets nucleate and grow in a polymer network, compressive stresses can significantly increase their internal pressure, reaching values that far exceed the Laplace pressure. When droplets have grown in a polymer network with a stiffness gradient, droplets in relatively stiff regions of the network tend to dissolve, favoring growth of droplets in softer regions. Here, we show that this elastic ripening can be strong enough to reverse the direction of Ostwald ripening: large droplets can shrink to feed the growth of smaller ones. To numerically model these experiments, we generalize the theory of elastic ripening to account for gradients in solubility alongside gradients in mechanical stiffness.

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Language(s): eng - English
 Dates: 2020-06-042020
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1039/D0SM00628A
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Title: Soft Matter
Source Genre: Journal
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Pages: - Volume / Issue: 16 Sequence Number: - Start / End Page: 5892 - 5897 Identifier: ISSN: 1744-683X
ISSN: 1744-6848