Communication: Is directed percolation in colloid-polymer mixtures linked to dynamic arrest?
- Publikationstyp:
- Zeitschriftenaufsatz
- Metadaten:
-
- Autoren
- David Richard
- C Patrick Royall
- Thomas Speck
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000437190300001&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1063/1.5037680
- eISSN
- 1089-7690
- Externe Identifier
- Clarivate Analytics Document Solution ID: GL5FT
- PubMed Identifier: 29960302
- ISSN
- 0021-9606
- Ausgabe der Veröffentlichung
- 24
- Zeitschrift
- JOURNAL OF CHEMICAL PHYSICS
- Artikelnummer
- ARTN 241101
- Datum der Veröffentlichung
- 2018
- Status
- Published
- Titel
- Communication: Is directed percolation in colloid-polymer mixtures linked to dynamic arrest?
- Sub types
- Article
- Ausgabe der Zeitschrift
- 148
Datenquelle: Web of Science (Lite)
- Andere Metadatenquellen:
-
- Abstract
- <jats:p>Using computer simulations, we study the dynamic arrest in a schematic model of colloid-polymer mixtures combining short-ranged attractions with long-ranged repulsions. The arrested gel is a dilute rigid network of colloidal particles bonded due to the strong attractions. Without repulsions, the gel forms at the spinodal through arrested phase separation. In the ergodic suspension at sufficiently high densities, colloidal clusters form temporary networks that percolate space. Recently [M. Kohl et al., Nat. Commun. 7, 11817 (2016)], it has been proposed that the transition of these networks to directed percolation (DP) coincides with the onset of the dynamic arrest, thus linking structure to dynamics. Here, we evaluate for various screening lengths the underlying gas-liquid binodal and the percolation transitions. We find that DP shifts the continuous percolation line to larger densities, but even beyond this line the suspension remains ergodic. Only when approaching the spinodal does dynamic arrest occur. Competing repulsions thus do not modify the qualitative scenario for non-equilibrium gelation, although the structure of the emerging percolating network shows some differences.</jats:p>
- Autoren
- David Richard
- C Patrick Royall
- Thomas Speck
- DOI
- 10.1063/1.5037680
- eISSN
- 1089-7690
- ISSN
- 0021-9606
- Ausgabe der Veröffentlichung
- 24
- Zeitschrift
- The Journal of Chemical Physics
- Sprache
- en
- Online publication date
- 2018
- Datum der Veröffentlichung
- 2018
- Status
- Published
- Herausgeber
- AIP Publishing
- Herausgeber URL
- http://dx.doi.org/10.1063/1.5037680
- Datum der Datenerfassung
- 2023
- Titel
- Communication: Is directed percolation in colloid-polymer mixtures linked to dynamic arrest?
- Ausgabe der Zeitschrift
- 148
Datenquelle: Crossref
- Abstract
- Using computer simulations, we study the dynamic arrest in a schematic model of colloid-polymer mixtures combining short-ranged attractions with long-ranged repulsions. The arrested gel is a dilute rigid network of colloidal particles bonded due to the strong attractions. Without repulsions, the gel forms at the spinodal through arrested phase separation. In the ergodic suspension at sufficiently high densities, colloidal clusters form temporary networks that percolate space. Recently [M. Kohl et al., Nat. Commun. 7, 11817 (2016)], it has been proposed that the transition of these networks to directed percolation (DP) coincides with the onset of the dynamic arrest, thus linking structure to dynamics. Here, we evaluate for various screening lengths the underlying gas-liquid binodal and the percolation transitions. We find that DP shifts the continuous percolation line to larger densities, but even beyond this line the suspension remains ergodic. Only when approaching the spinodal does dynamic arrest occur. Competing repulsions thus do not modify the qualitative scenario for non-equilibrium gelation, although the structure of the emerging percolating network shows some differences.
- Addresses
- Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudingerweg 7-9, 55128 Mainz, Germany.
- Autoren
- David Richard
- C Patrick Royall
- Thomas Speck
- DOI
- 10.1063/1.5037680
- eISSN
- 1089-7690
- Externe Identifier
- PubMed Identifier: 29960302
- Funding acknowledgements
- European Research Council: 617266
- Deutsche Forschungsgemeinschaft: TRR 146
- Open access
- false
- ISSN
- 0021-9606
- Ausgabe der Veröffentlichung
- 24
- Zeitschrift
- The Journal of chemical physics
- Sprache
- eng
- Medium
- Paginierung
- 241101
- Datum der Veröffentlichung
- 2018
- Status
- Published
- Datum der Datenerfassung
- 2018
- Titel
- Communication: Is directed percolation in colloid-polymer mixtures linked to dynamic arrest?
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 148
Datenquelle: Europe PubMed Central
- Abstract
- Using computer simulations, we study the dynamic arrest in a schematic model of colloid-polymer mixtures combining short-ranged attractions with long-ranged repulsions. The arrested gel is a dilute rigid network of colloidal particles bonded due to the strong attractions. Without repulsions, the gel forms at the spinodal through arrested phase separation. In the ergodic suspension at sufficiently high densities, colloidal clusters form temporary networks that percolate space. Recently [M. Kohl et al., Nat. Commun. 7, 11817 (2016)], it has been proposed that the transition of these networks to directed percolation (DP) coincides with the onset of the dynamic arrest, thus linking structure to dynamics. Here, we evaluate for various screening lengths the underlying gas-liquid binodal and the percolation transitions. We find that DP shifts the continuous percolation line to larger densities, but even beyond this line the suspension remains ergodic. Only when approaching the spinodal does dynamic arrest occur. Competing repulsions thus do not modify the qualitative scenario for non-equilibrium gelation, although the structure of the emerging percolating network shows some differences.
- Autoren
- David Richard
- C Patrick Royall
- Thomas Speck
- Autoren-URL
- https://www.ncbi.nlm.nih.gov/pubmed/29960302
- DOI
- 10.1063/1.5037680
- eISSN
- 1089-7690
- Ausgabe der Veröffentlichung
- 24
- Zeitschrift
- J Chem Phys
- Sprache
- eng
- Country
- United States
- Paginierung
- 241101
- Datum der Veröffentlichung
- 2018
- Status
- Published
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2018
- Titel
- Communication: Is directed percolation in colloid-polymer mixtures linked to dynamic arrest?
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 148
Datenquelle: PubMed
- Abstract
- Using computer simulations, we study the dynamic arrest in a schematic model of colloid-polymer mixtures combining short-ranged attractions with long-ranged repulsions. The arrested gel is a dilute rigid network of colloidal particles bonded due to the strong attractions. Without repulsions, the gel forms at the spinodal through arrested phase separation. In the ergodic suspension at sufficiently high densities, colloidal clusters form temporary networks that percolate space. Recently [Nat. Commun. 7, 11817 (2016)], it has been proposed that the transition of these networks to directed percolation coincides with the onset of the dynamic arrest, thus linking structure to dynamics. Here, we evaluate for various screening lengths the underlying gas-liquid binodal and the percolation transitions. We find that directed percolation shifts the continuous percolation line to larger densities, but even beyond this line the suspension remains ergodic. Only when approaching the spinodal does dynamic arrest occur. Competing repulsions thus do not modify the qualitative scenario for non-equilibrium gelation, although the structure of the emerging percolating network shows some differences.
- Autoren
- David Richard
- C Patrick Royall
- Thomas Speck
- Autoren-URL
- http://arxiv.org/abs/1806.09454v1
- Zeitschrift
- J. Chem. Phys.
- Schlüsselwörter
- cond-mat.soft
- cond-mat.soft
- Paginierung
- 241101
- Datum der Veröffentlichung
- 2018
- Herausgeber URL
- http://dx.doi.org/10.1063/1.5037680
- Datum der Datenerfassung
- 2018
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2018
- Titel
- Is directed percolation in colloid-polymer mixtures linked to dynamic arrest?
- Ausgabe der Zeitschrift
- 148
Files
1806.09454v1.pdf
Datenquelle: arXiv
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