Handle URI:
http://hdl.handle.net/10754/598541
Title:
Hyperdiffusive Dynamics in Newtonian Nanoparticle Fluids
Authors:
Srivastava, Samanvaya; Agarwal, Praveen; Mangal, Rahul; Koch, Donald L.; Narayanan, Suresh; Archer, Lynden A.
Abstract:
© 2015 American Chemical Society. Hyperdiffusive relaxations in soft glassy materials are typically associated with out-of-equilibrium states, and nonequilibrium physics and aging are often invoked in explaining their origins. Here, we report on hyperdiffusive motion in model soft materials comprised of single-component polymer-tethered nanoparticles, which exhibit a readily accessible Newtonian flow regime. In these materials, polymer-mediated interactions lead to strong nanoparticle correlations, hyperdiffusive relaxations, and unusual variations of properties with temperature. We propose that hyperdiffusive relaxations in such materials can arise naturally from nonequilibrium or non-Brownian volume fluctuations forced by equilibrium thermal rearrangements of the particle pair orientations corresponding to equilibrated shear modes.
Citation:
Srivastava S, Agarwal P, Mangal R, Koch DL, Narayanan S, et al. (2015) Hyperdiffusive Dynamics in Newtonian Nanoparticle Fluids. ACS Macro Letters 4: 1149–1153. Available: http://dx.doi.org/10.1021/acsmacrolett.5b00319.
Publisher:
American Chemical Society (ACS)
Journal:
ACS Macro Letters
KAUST Grant Number:
KUS-C1018-02
Issue Date:
20-Oct-2015
DOI:
10.1021/acsmacrolett.5b00319
Type:
Article
ISSN:
2161-1653; 2161-1653
Sponsors:
This work was supported by the National Science Foundation Award No. DMR-1006323 and by Award No. KUS-C1018-02, made by King Abdullah University of Science and Technology (KAUST). Use of the Advanced Photon Source, operated by Argonne National Laboratory, was supported by the U.S. DOE under Contract No. DE-AC02-06CH11357.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorSrivastava, Samanvayaen
dc.contributor.authorAgarwal, Praveenen
dc.contributor.authorMangal, Rahulen
dc.contributor.authorKoch, Donald L.en
dc.contributor.authorNarayanan, Sureshen
dc.contributor.authorArcher, Lynden A.en
dc.date.accessioned2016-02-25T13:31:51Zen
dc.date.available2016-02-25T13:31:51Zen
dc.date.issued2015-10-20en
dc.identifier.citationSrivastava S, Agarwal P, Mangal R, Koch DL, Narayanan S, et al. (2015) Hyperdiffusive Dynamics in Newtonian Nanoparticle Fluids. ACS Macro Letters 4: 1149–1153. Available: http://dx.doi.org/10.1021/acsmacrolett.5b00319.en
dc.identifier.issn2161-1653en
dc.identifier.issn2161-1653en
dc.identifier.doi10.1021/acsmacrolett.5b00319en
dc.identifier.urihttp://hdl.handle.net/10754/598541en
dc.description.abstract© 2015 American Chemical Society. Hyperdiffusive relaxations in soft glassy materials are typically associated with out-of-equilibrium states, and nonequilibrium physics and aging are often invoked in explaining their origins. Here, we report on hyperdiffusive motion in model soft materials comprised of single-component polymer-tethered nanoparticles, which exhibit a readily accessible Newtonian flow regime. In these materials, polymer-mediated interactions lead to strong nanoparticle correlations, hyperdiffusive relaxations, and unusual variations of properties with temperature. We propose that hyperdiffusive relaxations in such materials can arise naturally from nonequilibrium or non-Brownian volume fluctuations forced by equilibrium thermal rearrangements of the particle pair orientations corresponding to equilibrated shear modes.en
dc.description.sponsorshipThis work was supported by the National Science Foundation Award No. DMR-1006323 and by Award No. KUS-C1018-02, made by King Abdullah University of Science and Technology (KAUST). Use of the Advanced Photon Source, operated by Argonne National Laboratory, was supported by the U.S. DOE under Contract No. DE-AC02-06CH11357.en
dc.publisherAmerican Chemical Society (ACS)en
dc.titleHyperdiffusive Dynamics in Newtonian Nanoparticle Fluidsen
dc.typeArticleen
dc.identifier.journalACS Macro Lettersen
dc.contributor.institutionCornell University, Ithaca, United Statesen
dc.contributor.institutionArgonne National Laboratory, Argonne, United Statesen
kaust.grant.numberKUS-C1018-02en
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