Hyperdiffusive dynamics in Newtonian nanoparticle fluids [Hyperdiffusive dynamics in equilibrated nanoparticle fluids]
Abstract
Hyperdiffusive relaxations in soft glassy materials are typically associated with out-of-equilibrium states, and non-equilibrium physics and aging are often invoked in explaining their origins. Here, we report on hyperdiffusive motion in a model, equilibrium soft material comprised of single-component polymer-tethered-nanoparticles. In these materials, polymer mediated interactions lead to strong nanoparticle correlations, hyperdiffusive relaxations, and unusual variations of properties with temperature. Our experimental observations complement the current hypothesis that hyperdiffusive relaxations in soft materials require the material to exist in out–of–equilibrium states capable of driving structural rearrangements. Lastly, we propose alternatively that hyperdiffusive relaxations in our materials can arise naturally from volume fluctuations brought about by equilibrium thermal forces.
- Authors:
-
- Cornell Univ., Ithaca, NY (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- National Science Foundation (NSF); USDOE Office of Science (SC)
- OSTI Identifier:
- 1342385
- Grant/Contract Number:
- AC02-06CH11357
- Resource Type:
- Accepted Manuscript
- Journal Name:
- ACS Macro Letters
- Additional Journal Information:
- Journal Volume: 4; Journal Issue: 10; Journal ID: ISSN 2161-1653
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Srivastava, Samanvaya, Agarwal, Praveen, Mangal, Rahul, Koch, Donald L., Narayanan, Suresh, and Archer, Lynden A. Hyperdiffusive dynamics in Newtonian nanoparticle fluids [Hyperdiffusive dynamics in equilibrated nanoparticle fluids]. United States: N. p., 2015.
Web. doi:10.1021/acsmacrolett.5b00319.
Srivastava, Samanvaya, Agarwal, Praveen, Mangal, Rahul, Koch, Donald L., Narayanan, Suresh, & Archer, Lynden A. Hyperdiffusive dynamics in Newtonian nanoparticle fluids [Hyperdiffusive dynamics in equilibrated nanoparticle fluids]. United States. https://doi.org/10.1021/acsmacrolett.5b00319
Srivastava, Samanvaya, Agarwal, Praveen, Mangal, Rahul, Koch, Donald L., Narayanan, Suresh, and Archer, Lynden A. Thu .
"Hyperdiffusive dynamics in Newtonian nanoparticle fluids [Hyperdiffusive dynamics in equilibrated nanoparticle fluids]". United States. https://doi.org/10.1021/acsmacrolett.5b00319. https://www.osti.gov/servlets/purl/1342385.
@article{osti_1342385,
title = {Hyperdiffusive dynamics in Newtonian nanoparticle fluids [Hyperdiffusive dynamics in equilibrated nanoparticle fluids]},
author = {Srivastava, Samanvaya and Agarwal, Praveen and Mangal, Rahul and Koch, Donald L. and Narayanan, Suresh and Archer, Lynden A.},
abstractNote = {Hyperdiffusive relaxations in soft glassy materials are typically associated with out-of-equilibrium states, and non-equilibrium physics and aging are often invoked in explaining their origins. Here, we report on hyperdiffusive motion in a model, equilibrium soft material comprised of single-component polymer-tethered-nanoparticles. In these materials, polymer mediated interactions lead to strong nanoparticle correlations, hyperdiffusive relaxations, and unusual variations of properties with temperature. Our experimental observations complement the current hypothesis that hyperdiffusive relaxations in soft materials require the material to exist in out–of–equilibrium states capable of driving structural rearrangements. Lastly, we propose alternatively that hyperdiffusive relaxations in our materials can arise naturally from volume fluctuations brought about by equilibrium thermal forces.},
doi = {10.1021/acsmacrolett.5b00319},
journal = {ACS Macro Letters},
number = 10,
volume = 4,
place = {United States},
year = {Thu Sep 24 00:00:00 EDT 2015},
month = {Thu Sep 24 00:00:00 EDT 2015}
}
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Works referencing / citing this record:
Particle localization and hyperuniformity of polymer-grafted nanoparticle materials: Particle localization and hyperuniformity of polymer-grafted nanoparticle materials
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Nanoparticle–polymer interfacial layer properties tune fragility and dynamic heterogeneity of athermal polymer nanocomposite films
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Nanoparticle–polymer interfacial layer properties tune fragility and dynamic heterogeneity of athermal polymer nanocomposite films
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