Chain dynamics and nanoparticle motion in attractive polymer nanocomposites subjected to large deformations

Senses, Erkan; Tyagi, Madhusudan; Natarajan, Bharath; Narayanan, Suresh; Faraone, Antonio

doi:10.1039/C7SM01009E

Title: Chain dynamics and nanoparticle motion in attractive polymer nanocomposites subjected to large deformations

Abstract

The effect of large deformation on the chain dynamics in attractive polymer nanocomposites was investigated using neutron scattering techniques. Quasielastic neutron backscattering measurements reveal a substantial reduction of polymer mobility in the presence of attractive, well-dispersed nanoparticles. Additionally, large deformations are observed to cause a further slowing down of the Rouse rates at high particle loadings, where the interparticle spacings are slightly smaller than the chain dimensions, i.e. in the strongly confined state. No noticeable change, however, was observed for a lightly confined system. The reptation tube diameter, measured by neutron spin echo, remained unchanged after shear, suggesting that the level of chain-chain entanglements is not significantly affected. The shearinduced changes in the interparticle bridging reflects on the slow nanoparticle motion measured by X-ray photon correlation spectroscopy. These results provide a first step for understanding how large shear can significantly affect the segmental motion in nanocomposites and open up new opportunities for designing mechanically responsive soft materials.

Authors:

^[1]; Tyagi, Madhusudan ^[1]; Natarajan, Bharath ^[2]; Narayanan, Suresh ^[3]; Faraone, Antonio ^[4]

National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). Center for Neutron Research; Univ. of Maryland, College Park, MD (United States)
National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
Argonne National Lab. (ANL), Argonne, IL (United States)
National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). Center for Neutron Research

Publication Date:: Thu Sep 28 00:00:00 EDT 2017

Research Org.:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Org.:: National Science Foundation (NSF); USDOE Office of Science (SC)

OSTI Identifier:: 1427470

Grant/Contract Number:: AC02-06CH11357

Resource Type:: Accepted Manuscript

Journal Name:: Soft Matter

Additional Journal Information:: Journal Volume: 13; Journal Issue: 43; Journal ID: ISSN 1744-683X

Publisher:: Royal Society of Chemistry

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Senses, Erkan, Tyagi, Madhusudan, Natarajan, Bharath, Narayanan, Suresh, and Faraone, Antonio. Chain dynamics and nanoparticle motion in attractive polymer nanocomposites subjected to large deformations.  United States: N. p., 2017. 
Web.  doi:10.1039/C7SM01009E.

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                    Senses, Erkan, Tyagi, Madhusudan, Natarajan, Bharath, Narayanan, Suresh, & Faraone, Antonio. Chain dynamics and nanoparticle motion in attractive polymer nanocomposites subjected to large deformations.  United States.  https://doi.org/10.1039/C7SM01009E

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                    Senses, Erkan, Tyagi, Madhusudan, Natarajan, Bharath, Narayanan, Suresh, and Faraone, Antonio. Thu .  
"Chain dynamics and nanoparticle motion in attractive polymer nanocomposites subjected to large deformations".  United States.  https://doi.org/10.1039/C7SM01009E.  https://www.osti.gov/servlets/purl/1427470.

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@article{osti_1427470,

  title        = {Chain dynamics and nanoparticle motion in attractive polymer nanocomposites subjected to large deformations},

  author       = {Senses, Erkan and Tyagi, Madhusudan and Natarajan, Bharath and Narayanan, Suresh and Faraone, Antonio},

  abstractNote = {The effect of large deformation on the chain dynamics in attractive polymer nanocomposites was investigated using neutron scattering techniques. Quasielastic neutron backscattering measurements reveal a substantial reduction of polymer mobility in the presence of attractive, well-dispersed nanoparticles. Additionally, large deformations are observed to cause a further slowing down of the Rouse rates at high particle loadings, where the interparticle spacings are slightly smaller than the chain dimensions, i.e. in the strongly confined state. No noticeable change, however, was observed for a lightly confined system. The reptation tube diameter, measured by neutron spin echo, remained unchanged after shear, suggesting that the level of chain-chain entanglements is not significantly affected. The shearinduced changes in the interparticle bridging reflects on the slow nanoparticle motion measured by X-ray photon correlation spectroscopy. These results provide a first step for understanding how large shear can significantly affect the segmental motion in nanocomposites and open up new opportunities for designing mechanically responsive soft materials.},

  doi          = {10.1039/C7SM01009E},

  journal      = {Soft Matter},

  number       = 43,

  volume       = 13,

  place        = {United States},

  year         = {Thu Sep 28 00:00:00 EDT 2017},

  month        = {Thu Sep 28 00:00:00 EDT 2017}

}

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Works referenced in this record:

50th Anniversary Perspective : Are Polymer Nanocomposites Practical for Applications?
journal, January 2017

Kumar, Sanat K.; Benicewicz, Brian C.; Vaia, Richard A.
Macromolecules, Vol. 50, Issue 3
DOI: 10.1021/acs.macromol.6b02330

Single Chain Dynamic Structure Factor of Linear Polymers in an All-Polymer Nano-Composite
journal, March 2016

Arbe, Arantxa; Pomposo, José A.; Asenjo-Sanz, Isabel
Macromolecules, Vol. 49, Issue 6
DOI: 10.1021/acs.macromol.5b02519

Physical adsorption of polyvinyl pyrrolidone on carbon nanotubes under shear studied with dissipative particle dynamics simulations
journal, April 2016

Vo, Minh D.; Papavassiliou, Dimitrios V.
Carbon, Vol. 100
DOI: 10.1016/j.carbon.2015.12.105

Conformation of Polymer Brushes under Shear: Chain Tilting and Stretching
journal, January 1996

Miao, Ling; Guo, Hong; Zuckermann, Martin J.
Macromolecules, Vol. 29, Issue 6
DOI: 10.1021/ma951071z

Segmental Dynamics of Polymer Melts with Spherical Nanoparticles
journal, July 2014

Gong, Shushan; Chen, Quan; Moll, Joseph F.
ACS Macro Letters, Vol. 3, Issue 8
DOI: 10.1021/mz500252f

Origin of Small-Angle Scattering from Contrast-Matched Nanoparticles: A Study of Chain and Filler Structure in Polymer Nanocomposites
journal, September 2015

Banc, Amélie; Genix, Anne-Caroline; Dupas, Christelle
Macromolecules, Vol. 48, Issue 18
DOI: 10.1021/acs.macromol.5b01424

Mechanical Reinforcement of Polymer Nanocomposites from Percolation of a Nanoparticle Network
journal, March 2015

Chen, Quan; Gong, Shushan; Moll, Joseph
ACS Macro Letters, Vol. 4, Issue 4
DOI: 10.1021/acsmacrolett.5b00002

Microscopic Chain Motion in Polymer Nanocomposites with Dynamically Asymmetric Interphases
journal, July 2016

Senses, Erkan; Faraone, Antonio; Akcora, Pinar
Scientific Reports, Vol. 6, Issue 1
DOI: 10.1038/srep29326

Nanostructures and Dynamics of Macromolecules Bound to Attractive Filler Surfaces
journal, July 2015

Jiang, Naisheng; Endoh, Maya K.; Koga, Tadanori
ACS Macro Letters, Vol. 4, Issue 8
DOI: 10.1021/acsmacrolett.5b00368

Statistics of polymer adsorption under shear flow
journal, March 2010

He, Gui-Li; Messina, René; Löwen, Hartmut
The Journal of Chemical Physics, Vol. 132, Issue 12
DOI: 10.1063/1.3361673

Microscopic Dynamics of Polyethylene Glycol Chains Interacting with Silica Nanoparticles
journal, April 2013

Glomann, T.; Schneider, G. J.; Allgaier, J.
Physical Review Letters, Vol. 110, Issue 17
DOI: 10.1103/PhysRevLett.110.178001

Nanoparticle Motion within Glassy Polymer Melts
journal, February 2009

Guo, Hongyu; Bourret, Gilles; Corbierre, Muriel K.
Physical Review Letters, Vol. 102, Issue 7
DOI: 10.1103/PhysRevLett.102.075702

Structure and dynamics of polymer nanocomposites studied by X-ray and neutron scattering techniques
journal, August 2015

Genix, Anne-Caroline; Oberdisse, Julian
Current Opinion in Colloid & Interface Science, Vol. 20, Issue 4
DOI: 10.1016/j.cocis.2015.10.002

Dispersing Grafted Nanoparticle Assemblies into Polymer Melts through Flow Fields
journal, November 2013

Moll, Joseph; Kumar, Sanat K.; Snijkers, Frank
ACS Macro Letters, Vol. 2, Issue 12
DOI: 10.1021/mz400447k

Influence of the Bound Polymer Layer on Nanoparticle Diffusion in Polymer Melts
journal, September 2016

Griffin, Philip J.; Bocharova, Vera; Middleton, L. Robert
ACS Macro Letters, Vol. 5, Issue 10
DOI: 10.1021/acsmacrolett.6b00649

Rheology of Confined Polymer Melts under Shear Flow: Weak Adsorption Limit
journal, May 1995

Subbotin, A.; Semenov, A.; Hadziioannou, G.
Macromolecules, Vol. 28, Issue 11
DOI: 10.1021/ma00115a022

Anomalous structural and dynamical phase transitions of soft colloidal binary mixtures
journal, January 2012

Kandar, A. K.; Basu, J. K.; Narayanan, S.
Soft Matter, Vol. 8, Issue 39
DOI: 10.1039/c2sm25774b

Bound Polymer Layer in Nanocomposites
journal, April 2013

Jouault, Nicolas; Moll, Joseph F.; Meng, Dong
ACS Macro Letters, Vol. 2, Issue 5
DOI: 10.1021/mz300646a

Mechanistic model for deformation of polymer nanocomposite melts under large amplitude shear
journal, January 2013

Senses, Erkan; Akcora, Pinar
Journal of Polymer Science Part B: Polymer Physics, Vol. 51, Issue 9
DOI: 10.1002/polb.23247

Polymer Chain Dynamics in a Random Environment: Heterogeneous Mobilities
journal, April 2007

Niedzwiedz, K.; Wischnewski, A.; Monkenbusch, M.
Physical Review Letters, Vol. 98, Issue 16
DOI: 10.1103/PhysRevLett.98.168301

An Interface-Driven Stiffening Mechanism in Polymer Nanocomposites
journal, February 2013

Senses, Erkan; Akcora, Pinar
Macromolecules, Vol. 46, Issue 5
DOI: 10.1021/ma302275f

Small Particle Driven Chain Disentanglements in Polymer Nanocomposites
journal, April 2017

Senses, Erkan; Ansar, Siyam M.; Kitchens, Christopher L.
Physical Review Letters, Vol. 118, Issue 14
DOI: 10.1103/PhysRevLett.118.147801

Structure and Entanglement Factors on Dynamics of Polymer-Grafted Nanoparticles
journal, April 2016

Liu, Siqi; Senses, Erkan; Jiao, Yang
ACS Macro Letters, Vol. 5, Issue 5
DOI: 10.1021/acsmacrolett.6b00089

DAVE: A Comprehensive Software Suite for the Reduction, Visualization, and Analysis of Low Energy Neutron Spectroscopic Data
journal, November 2009

Azuah, Richard Tumanjong; Kneller, Larry R.; Qiu, Yiming
Journal of Research of the National Institute of Standards and Technology, Vol. 114, Issue 6
DOI: 10.6028/jres.114.025

Multiscale Dynamics of Polymers in Particle-Rich Nanocomposites
journal, July 2016

Mangal, Rahul; Wen, Yu Ho; Choudhury, Snehashis
Macromolecules, Vol. 49, Issue 14
DOI: 10.1021/acs.macromol.6b00496

Conformations of Silica−Poly(ethylene−propylene) Nanocomposites
journal, December 2010

Nusser, Klaus; Neueder, Susanne; Schneider, Gerald J.
Macromolecules, Vol. 43, Issue 23
DOI: 10.1021/ma101898c

Rheology of Confined Polymer Melts under Shear Flow: Strong Adsorption Limit
journal, September 1995

Subbotin, A.; Semenov, A.; Manias, E.
Macromolecules, Vol. 28, Issue 5
DOI: 10.1021/ma00109a024

Neutron Spin Echo in Polymer Systems
book, January 2005

Richter, Dieter; Monkenbusch, Michael; Arbe, Arantxa
DOI: 10.1007/b106578

Network dynamics in nanofilled polymers
journal, April 2016

Baeza, Guilhem P.; Dessi, Claudia; Costanzo, Salvatore
Nature Communications, Vol. 7, Issue 1
DOI: 10.1038/ncomms11368

Modulating interfacial attraction of polymer-grafted nanoparticles in melts under shear
journal, January 2014

Senses, Erkan; Jiao, Yang; Akcora, Pinar
Soft Matter, Vol. 10, Issue 25
DOI: 10.1039/C4SM00460D

The high-flux backscattering spectrometer at the NIST Center for Neutron Research
journal, May 2003

Meyer, A.; Dimeo, R. M.; Gehring, P. M.
Review of Scientific Instruments, Vol. 74, Issue 5
DOI: 10.1063/1.1568557

Payne effect and shear elasticity of silica-filled polymers in concentrated solutions and in molten state
journal, April 2003

Cassagnau, Philippe
Polymer, Vol. 44, Issue 8
DOI: 10.1016/S0032-3861(03)00094-6

A Microscopic Model for the Reinforcement and the Nonlinear Behavior of Filled Elastomers and Thermoplastic Elastomers (Payne and Mullins Effects)
journal, November 2008

Merabia, Samy; Sotta, Paul; Long, Didier R.
Macromolecules, Vol. 41, Issue 21
DOI: 10.1021/ma8014728

Effect of Nanoconfinement on Polymer Dynamics: Surface Layers and Interphases
journal, March 2013

Krutyeva, M.; Wischnewski, A.; Monkenbusch, M.
Physical Review Letters, Vol. 110, Issue 10
DOI: 10.1103/PhysRevLett.110.108303

Reversible Thermal Stiffening in Polymer Nanocomposites
journal, June 2015

Senses, Erkan; Isherwood, Andrew; Akcora, Pinar
ACS Applied Materials & Interfaces, Vol. 7, Issue 27
DOI: 10.1021/acsami.5b02046

Unexpected Molecular Weight Effect in Polymer Nanocomposites
journal, January 2016

Cheng, Shiwang; Holt, Adam P.; Wang, Huiqun
Physical Review Letters, Vol. 116, Issue 3
DOI: 10.1103/PhysRevLett.116.038302

Reinforcement Mechanism of Nanofilled Polymer Melts As Elucidated by Nonlinear Viscoelastic Behavior
journal, September 2002

Sternstein, S. S.; Zhu, Ai-Jun
Macromolecules, Vol. 35, Issue 19
DOI: 10.1021/ma020482u

Tailoring the alignment of string-like nanoparticle assemblies in a functionalized polymer matrix via steady shear
journal, January 2017

Chen, Yulong; Liu, Jun; Liu, Li
RSC Advances, Vol. 7, Issue 15
DOI: 10.1039/C6RA28060A

Interfaces and interphases in multicomponent materials: past, present, future
journal, April 2005

Pukánszky, Béla
European Polymer Journal, Vol. 41, Issue 4
DOI: 10.1016/j.eurpolymj.2004.10.035

Reptation of a Polymer Chain in the Presence of Fixed Obstacles
journal, July 1971

de Gennes, P. G.
The Journal of Chemical Physics, Vol. 55, Issue 2
DOI: 10.1063/1.1675789

Chain Dynamics and Viscoelastic Properties of Poly(ethylene oxide)
journal, July 2008

Niedzwiedz, K.; Wischnewski, A.; Pyckhout-Hintzen, W.
Macromolecules, Vol. 41, Issue 13
DOI: 10.1021/ma800446n

Immobilized Polymer Layers on Spherical Nanoparticles
journal, April 2010

Harton, Shane E.; Kumar, Sanat K.; Yang, Hoichang
Macromolecules, Vol. 43, Issue 7
DOI: 10.1021/ma902484d

Modeling of Intermediate Structures and Chain Conformation in Silica–Latex Nanocomposites Observed by SANS During Annealing
journal, January 2012

Genix, Anne-Caroline; Tatou, Mouna; Imaz, Ainara
Macromolecules, Vol. 45, Issue 3
DOI: 10.1021/ma202308c

Study of the dynamics of poly(ethylene oxide) by combining molecular dynamic simulations and neutron scattering experiments
journal, March 2009

Brodeck, M.; Alvarez, F.; Arbe, A.
The Journal of Chemical Physics, Vol. 130, Issue 9
DOI: 10.1063/1.3077858

Entanglement-Controlled Subdiffusion of Nanoparticles within Concentrated Polymer Solutions
journal, August 2012

Guo, Hongyu; Bourret, Gilles; Lennox, R. Bruce
Physical Review Letters, Vol. 109, Issue 5
DOI: 10.1103/PhysRevLett.109.055901

Chain Conformations and Bound-Layer Correlations in Polymer Nanocomposites
journal, March 2007

Sen, Sudeepto; Xie, Yuping; Kumar, Sanat K.
Physical Review Letters, Vol. 98, Issue 12
DOI: 10.1103/PhysRevLett.98.128302

Dynamics at the Polymer/Nanoparticle Interface in Poly(2-vinylpyridine)/Silica Nanocomposites
journal, February 2014

Holt, Adam P.; Griffin, Philip J.; Bocharova, Vera
Macromolecules, Vol. 47, Issue 5
DOI: 10.1021/ma5000317

Network dynamics in nanofilled polymers
text, January 2016

K., Kumar, Sanat; Shushan, Gong,; P., Baeza, Guilhem
The University of North Carolina at Chapel Hill University Libraries
DOI: 10.17615/wpjw-0671

Modeling of Intermediate Structures and Chain Conformation in Silica-Latex Nanocomposites Observed by SANS During Annealing
text, January 2012

Genix, Anne-Caroline; Tatou, Mouna; Imaz, Ainara
arXiv
DOI: 10.48550/arxiv.1202.6466

Mechanistic Model for Deformation of Polymer Nanocomposite Melts under Large Amplitude Shear
text, January 2012

Senses, Erkan; Akcora, Pinar
arXiv
DOI: 10.48550/arxiv.1212.3252

The High-Flux Backscattering Spectrometer at the NIST Center for Neutron Research
text, January 2002

Meyer, A.; Dimeo, R. M.; Gehring, P. M.
arXiv
DOI: 10.48550/arxiv.cond-mat/0209153

Works referencing / citing this record:

Study of segmental dynamics and ion transport in polymer–ceramic composite electrolytes by quasi-elastic neutron scattering
journal, January 2019

Chen, X. Chelsea; Sacci, Robert L.; Osti, Naresh C.
Molecular Systems Design & Engineering, Vol. 4, Issue 2
DOI: 10.1039/c8me00113h

Anisotropic and heterogeneous dynamics in stretched elastomer nanocomposites
journal, January 2019

Ehrburger-Dolle, Françoise; Morfin, Isabelle; Bley, Françoise
Soft Matter, Vol. 15, Issue 18
DOI: 10.1039/c8sm02289e

Polymer dynamics under confinement
journal, January 2019

Richter, Dieter; Kruteva, Margarita
Soft Matter, Vol. 15, Issue 37
DOI: 10.1039/c9sm01141b

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Title: Chain dynamics and nanoparticle motion in attractive polymer nanocomposites subjected to large deformations

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Mechanistic model for deformation of polymer nanocomposite melts under large amplitude shear
journal, January 2013

Polymer Chain Dynamics in a Random Environment: Heterogeneous Mobilities
journal, April 2007

An Interface-Driven Stiffening Mechanism in Polymer Nanocomposites
journal, February 2013

Small Particle Driven Chain Disentanglements in Polymer Nanocomposites
journal, April 2017

Structure and Entanglement Factors on Dynamics of Polymer-Grafted Nanoparticles
journal, April 2016

DAVE: A Comprehensive Software Suite for the Reduction, Visualization, and Analysis of Low Energy Neutron Spectroscopic Data
journal, November 2009

Multiscale Dynamics of Polymers in Particle-Rich Nanocomposites
journal, July 2016

Conformations of Silica−Poly(ethylene−propylene) Nanocomposites
journal, December 2010

Rheology of Confined Polymer Melts under Shear Flow: Strong Adsorption Limit
journal, September 1995

Neutron Spin Echo in Polymer Systems
book, January 2005

Network dynamics in nanofilled polymers
journal, April 2016

Modulating interfacial attraction of polymer-grafted nanoparticles in melts under shear
journal, January 2014

The high-flux backscattering spectrometer at the NIST Center for Neutron Research
journal, May 2003

Payne effect and shear elasticity of silica-filled polymers in concentrated solutions and in molten state
journal, April 2003

A Microscopic Model for the Reinforcement and the Nonlinear Behavior of Filled Elastomers and Thermoplastic Elastomers (Payne and Mullins Effects)
journal, November 2008

Effect of Nanoconfinement on Polymer Dynamics: Surface Layers and Interphases
journal, March 2013

Reversible Thermal Stiffening in Polymer Nanocomposites
journal, June 2015

Unexpected Molecular Weight Effect in Polymer Nanocomposites
journal, January 2016

Reinforcement Mechanism of Nanofilled Polymer Melts As Elucidated by Nonlinear Viscoelastic Behavior
journal, September 2002

Tailoring the alignment of string-like nanoparticle assemblies in a functionalized polymer matrix via steady shear
journal, January 2017

Interfaces and interphases in multicomponent materials: past, present, future
journal, April 2005

Reptation of a Polymer Chain in the Presence of Fixed Obstacles
journal, July 1971

Chain Dynamics and Viscoelastic Properties of Poly(ethylene oxide)
journal, July 2008

Immobilized Polymer Layers on Spherical Nanoparticles
journal, April 2010

Modeling of Intermediate Structures and Chain Conformation in Silica–Latex Nanocomposites Observed by SANS During Annealing
journal, January 2012

Study of the dynamics of poly(ethylene oxide) by combining molecular dynamic simulations and neutron scattering experiments
journal, March 2009

Entanglement-Controlled Subdiffusion of Nanoparticles within Concentrated Polymer Solutions
journal, August 2012

Chain Conformations and Bound-Layer Correlations in Polymer Nanocomposites
journal, March 2007

Dynamics at the Polymer/Nanoparticle Interface in Poly(2-vinylpyridine)/Silica Nanocomposites
journal, February 2014

Network dynamics in nanofilled polymers
text, January 2016

Modeling of Intermediate Structures and Chain Conformation in Silica-Latex Nanocomposites Observed by SANS During Annealing
text, January 2012

Mechanistic Model for Deformation of Polymer Nanocomposite Melts under Large Amplitude Shear
text, January 2012

The High-Flux Backscattering Spectrometer at the NIST Center for Neutron Research
text, January 2002

Study of segmental dynamics and ion transport in polymer–ceramic composite electrolytes by quasi-elastic neutron scattering
journal, January 2019

Anisotropic and heterogeneous dynamics in stretched elastomer nanocomposites
journal, January 2019

Polymer dynamics under confinement
journal, January 2019