Repository logo
 
No Thumbnail Available
Publication

Dynamics of a network fluid within the liquid–gas coexistence region

Use this identifier to reference this record.
Name:Description:Size:Format: 
Dynamics_JMTavares_ADF.pdf3.16 MBAdobe PDF Download

Advisor(s)

Abstract(s)

Low-density networks of molecules or colloids are formed at low temperatures when the interparticle interactions are valence limited. Prototypical examples are networks of patchy particles, where the limited valence results from highly directional pairwise interactions. We combine extensive Langevin simulations and Wertheim's theory of association to study these networks. We find a scale-free (relaxation) dynamics within the liquid–gas coexistence region, which differs from that usually observed for isotropic particles. While for isotropic particles the relaxation dynamics is driven by surface tension (coarsening), when the valence is limited, the slow relaxation proceeds through the formation of an intermediate non-equilibrium gel via a geometrical percolation transition in the Random Percolation universality class. We show that the slow dynamics is universal, being also observed outside the coexistence region at low temperatures in the single phase region.

Description

Keywords

Liquid-gas Isotropic Relaxation

Citation

DIAS, C. S.; TAVARES, J. M.; ARAÚJO, N. A. M.; GAMA, M. M. Telo da – Dynamics of a network fluid within the liquid–gas coexistence region. Soft Matter. ISSN 1744-6848. Vol. 14, N.º 14 (2018), pp. 2744-2750

Research Projects

Organizational Units

Journal Issue

Publisher

Royal Society of Chemistry

CC License

Altmetrics