Impact of small changes in particle surface chemistry for unentangled polymer nanocomposites

Ranka, Moulik; Varkey, Nihal; Ramakrishnan, Subramanian; Zukoski, Charles F.

doi:10.1039/c4sm01598c

Title: Impact of small changes in particle surface chemistry for unentangled polymer nanocomposites

Abstract

Here, we report microstructural and rheological consequences of altering silica particle surface chemistry when the particles are suspended in unentangled polyethylene glycol with a molecular weight of 400. The particle surfaces are altered by reacting them with isobutyltrimethyoxysilane. Levels of silanization are chosen so that the particles remain dispersed in the polymer at all volume fractions studied. Our studies indicate that at the levels studied, silanization does not alter the hydrodynamic thickness of the absorbed polymer layer thickness. Rheological properties are not sensitive to levels of silanization up to particle volume fractions where the average particle separation h ~ 6R_g (4.8 nm). At these volume fractions, composite microstructure undergoes changes associated with jamming of soft particles (decorrelations in the first peak of the particle structure factor and the onset of a non-diffusive mechanism that dominates particle density fluctuations at short times.) In the region of volume fractions where h/R_g < 6, the zero-shear rate viscosity of the composites is extremely sensitive to level of silanization with a decrease in the zero-shear rate viscosity by four orders of magnitude observed for the highest levels of silanization studied in comparison to the bare particles.

Authors:

Ranka, Moulik ^[1]; Varkey, Nihal ^[1]; Ramakrishnan, Subramanian ^[2]; Zukoski, Charles F. ^[3]

Univ. of Illinois at Urbana-Champaign, IL (United States)
FAMU-FSU College of Engineering, Tallahassee, FL (United States)
Univ. at Buffalo, NY (United States)

Publication Date:: Wed Dec 17 00:00:00 EST 2014

Research Org.:: Univ. of Illinois at Urbana-Champaign, IL (United States); Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; DOE - BASIC ENERGY SCIENCESU.S. ARMY RESEARCH

OSTI Identifier:: 1875502

Alternate Identifier(s):: OSTI ID: 1170037

Grant/Contract Number:: FG02-07ER46471; AC02-06CH11357; W911NF-13-1-0132

Resource Type:: Accepted Manuscript

Journal Name:: Soft Matter

Additional Journal Information:: Journal Volume: 11; Journal Issue: 8; Journal ID: ISSN 1744-683X

Publisher:: Royal Society of Chemistry

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Ranka, Moulik, Varkey, Nihal, Ramakrishnan, Subramanian, and Zukoski, Charles F. Impact of small changes in particle surface chemistry for unentangled polymer nanocomposites.  United States: N. p., 2014. 
Web.  doi:10.1039/c4sm01598c.

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                    Ranka, Moulik, Varkey, Nihal, Ramakrishnan, Subramanian, & Zukoski, Charles F. Impact of small changes in particle surface chemistry for unentangled polymer nanocomposites.  United States.  https://doi.org/10.1039/c4sm01598c

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                    Ranka, Moulik, Varkey, Nihal, Ramakrishnan, Subramanian, and Zukoski, Charles F. Wed .  
"Impact of small changes in particle surface chemistry for unentangled polymer nanocomposites".  United States.  https://doi.org/10.1039/c4sm01598c.  https://www.osti.gov/servlets/purl/1875502.

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@article{osti_1875502,

  title        = {Impact of small changes in particle surface chemistry for unentangled polymer nanocomposites},

  author       = {Ranka, Moulik and Varkey, Nihal and Ramakrishnan, Subramanian and Zukoski, Charles F.},

  abstractNote = {Here, we report microstructural and rheological consequences of altering silica particle surface chemistry when the particles are suspended in unentangled polyethylene glycol with a molecular weight of 400. The particle surfaces are altered by reacting them with isobutyltrimethyoxysilane. Levels of silanization are chosen so that the particles remain dispersed in the polymer at all volume fractions studied. Our studies indicate that at the levels studied, silanization does not alter the hydrodynamic thickness of the absorbed polymer layer thickness. Rheological properties are not sensitive to levels of silanization up to particle volume fractions where the average particle separation h ~ 6Rg (4.8 nm). At these volume fractions, composite microstructure undergoes changes associated with jamming of soft particles (decorrelations in the first peak of the particle structure factor and the onset of a non-diffusive mechanism that dominates particle density fluctuations at short times.) In the region of volume fractions where h/Rg < 6, the zero-shear rate viscosity of the composites is extremely sensitive to level of silanization with a decrease in the zero-shear rate viscosity by four orders of magnitude observed for the highest levels of silanization studied in comparison to the bare particles.},

  doi          = {10.1039/c4sm01598c},

  journal      = {Soft Matter},

  number       = 8,

  volume       = 11,

  place        = {United States},

  year         = {Wed Dec 17 00:00:00 EST 2014},

  month        = {Wed Dec 17 00:00:00 EST 2014}

}

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Works referencing / citing this record:

Rheological behavior of fumed silica filled polyethylene oxide
journal, February 2019

Zhang, Qingxu; Xu, Huilong; Song, Yihu
Journal of Polymer Science Part B: Polymer Physics, Vol. 57, Issue 7
DOI: 10.1002/polb.24794

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Title: Impact of small changes in particle surface chemistry for unentangled polymer nanocomposites

Abstract

Citation Formats

Controlled growth of monodisperse silica spheres in the micron size range journal, January 1968

Deswelling kinetics of PNIPA gels journal, January 2010

Viscoelastic Dynamics of Confined Polymer Melts journal, November 1992

Nanocomposite Science and Technology book, August 2003

Structure and Transport Anomalies in Soft Colloids journal, April 2013

Many body effects on the phase separation and structure of dense polymer-particle melts journal, June 2008

Connecting the Wetting and Rheological Behaviors of Poly(dimethylsiloxane)-Grafted Silica Spheres in Poly(dimethylsiloxane) Melts journal, November 2006

Nature of the divergence in low shear viscosity of colloidal hard-sphere dispersions journal, April 2002

Rheology and Microstructure of Polymer Nanocomposite Melts: Variation of Polymer Segment−Surface Interaction journal, June 2010

Rheology and Microstructure of an Unentangled Polymer Nanocomposite Melt journal, December 2008

Nanoparticle Motion within Glassy Polymer Melts journal, February 2009

Pressure and temperature dependence of the self diffusion coefficient of water and oxygen-18 water journal, January 1980

Microscopic Dynamics of Recovery in Sheared Depletion Gels journal, June 2006

Beyond simple exponential correlation functions and equilibrium dynamics in x-ray photon correlation spectroscopy journal, May 2010

Effect of Polymer-Filler and Filler-Filler Interactions on Dynamic Properties of Filled Vulcanizates journal, July 1998

Anomalous phase behavior of a soft-repulsive potential with a strictly monotonic force journal, September 2009

Preparation of monodisperse silica particles: Control of size and mass fraction journal, August 1988

Concentration fluctuations in a binary glass former investigated by x-ray photon correlation spectroscopy journal, June 2010

Concentration Fluctuations, Local Order, and the Collective Structure of Polymer Nanocomposites journal, November 2009

Role of Polymer Segment–Particle Surface Interactions in Controlling Nanoparticle Dispersions in Concentrated Polymer Solutions journal, September 2011

Relationship between structural order and the anomalies of liquid water journal, January 2001

The influence of potential softness on the transport coefficients of simple fluids journal, June 2005

Dynamics of a colloid-stabilized cream journal, January 2009

Dynamics of Nanoparticles in a Supercooled Liquid journal, February 2008

Ultraslow Dynamics and Stress Relaxation in the Aging of a Soft Glassy System journal, November 2001

Mapping between long-time molecular and Brownian dynamics journal, January 2011

Nanorheology of Confined Polymer Melts. 1. Linear Shear Response at Strongly Adsorbing Surfaces journal, October 1994

Glassy dynamics and aging in a dense ferrofluid journal, September 2006

Polymer Dynamics in PEG-Silica Nanocomposites: Effects of Polymer Molecular Weight, Temperature and Solvent Dilution journal, May 2012

Gel formation and aging in weakly attractive nanocolloid suspensions at intermediate concentrations journal, October 2011

Universal non-diffusive slow dynamics in aging soft matter journal, September 2002

Formation of Uniform Aminosilane Thin Layers: An Imine Formation To Measure Relative Surface Density of the Amine Group journal, January 1996

Contact Aggregation, Bridging, and Steric Stabilization in Dense Polymer−Particle Mixtures journal, October 2005

Multiscale Structure, Interfacial Cohesion, Adsorbed Layers, and Thermodynamics in Dense Polymer-Nanoparticle Mixtures journal, November 2011

Nanocomposites with Polymer Grafted Nanoparticles journal, April 2013

Rheology and Microstructure of Entangled Polymer Nanocomposite Melts journal, November 2009

Two-Dimensional Heterogeneous Dynamics at the Surface of a Colloidal Suspension journal, April 2009

Unveiling the complex glassy dynamics of square shoulder systems: Simulations and theory journal, April 2013

Rheology of high density glass of binary colloidal mixtures in unentangled polymer melts journal, January 2013

Communication: Generalizing Rosenfeld's excess-entropy scaling to predict long-time diffusivity in dense fluids of Brownian particles: From hard to ultrasoft interactions journal, February 2011

Super- and sub-Einstein intrinsic viscosities of spherical nanoparticles in concentrated low molecular weight polymer solutions journal, January 2012

Theory of Phase Separation in Polymer Nanocomposites journal, July 2006

Slow, nondiffusive dynamics in concentrated nanoemulsions journal, April 2007

Nanoparticle Polymer Composites: Where Two Small Worlds Meet journal, November 2006

Configurational entropy and diffusivity of supercooled water journal, July 2000

Role of Particle Size and Polymer Length in Rheology of Colloid–Polymer Composites journal, December 2012

Rheological behavior of fumed silica filled polyethylene oxide journal, February 2019

Controlled growth of monodisperse silica spheres in the micron size range
journal, January 1968

Deswelling kinetics of PNIPA gels
journal, January 2010

Viscoelastic Dynamics of Confined Polymer Melts
journal, November 1992

Nanocomposite Science and Technology
book, August 2003

Structure and Transport Anomalies in Soft Colloids
journal, April 2013

Many body effects on the phase separation and structure of dense polymer-particle melts
journal, June 2008

Connecting the Wetting and Rheological Behaviors of Poly(dimethylsiloxane)-Grafted Silica Spheres in Poly(dimethylsiloxane) Melts
journal, November 2006

Nature of the divergence in low shear viscosity of colloidal hard-sphere dispersions
journal, April 2002

Rheology and Microstructure of Polymer Nanocomposite Melts: Variation of Polymer Segment−Surface Interaction
journal, June 2010

Rheology and Microstructure of an Unentangled Polymer Nanocomposite Melt
journal, December 2008

Nanoparticle Motion within Glassy Polymer Melts
journal, February 2009

Pressure and temperature dependence of the self diffusion coefficient of water and oxygen-18 water
journal, January 1980

Microscopic Dynamics of Recovery in Sheared Depletion Gels
journal, June 2006

Beyond simple exponential correlation functions and equilibrium dynamics in x-ray photon correlation spectroscopy
journal, May 2010

Effect of Polymer-Filler and Filler-Filler Interactions on Dynamic Properties of Filled Vulcanizates
journal, July 1998

Anomalous phase behavior of a soft-repulsive potential with a strictly monotonic force
journal, September 2009

Preparation of monodisperse silica particles: Control of size and mass fraction
journal, August 1988

Concentration fluctuations in a binary glass former investigated by x-ray photon correlation spectroscopy
journal, June 2010

Concentration Fluctuations, Local Order, and the Collective Structure of Polymer Nanocomposites
journal, November 2009

Role of Polymer Segment–Particle Surface Interactions in Controlling Nanoparticle Dispersions in Concentrated Polymer Solutions
journal, September 2011

Relationship between structural order and the anomalies of liquid water
journal, January 2001

The influence of potential softness on the transport coefficients of simple fluids
journal, June 2005

Dynamics of a colloid-stabilized cream
journal, January 2009

Dynamics of Nanoparticles in a Supercooled Liquid
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Ultraslow Dynamics and Stress Relaxation in the Aging of a Soft Glassy System
journal, November 2001

Mapping between long-time molecular and Brownian dynamics
journal, January 2011

Nanorheology of Confined Polymer Melts. 1. Linear Shear Response at Strongly Adsorbing Surfaces
journal, October 1994

Glassy dynamics and aging in a dense ferrofluid
journal, September 2006

Polymer Dynamics in PEG-Silica Nanocomposites: Effects of Polymer Molecular Weight, Temperature and Solvent Dilution
journal, May 2012

Gel formation and aging in weakly attractive nanocolloid suspensions at intermediate concentrations
journal, October 2011

Universal non-diffusive slow dynamics in aging soft matter
journal, September 2002

Formation of Uniform Aminosilane Thin Layers: An Imine Formation To Measure Relative Surface Density of the Amine Group
journal, January 1996

Contact Aggregation, Bridging, and Steric Stabilization in Dense Polymer−Particle Mixtures
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Multiscale Structure, Interfacial Cohesion, Adsorbed Layers, and Thermodynamics in Dense Polymer-Nanoparticle Mixtures
journal, November 2011

Nanocomposites with Polymer Grafted Nanoparticles
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Rheology and Microstructure of Entangled Polymer Nanocomposite Melts
journal, November 2009

Two-Dimensional Heterogeneous Dynamics at the Surface of a Colloidal Suspension
journal, April 2009

Unveiling the complex glassy dynamics of square shoulder systems: Simulations and theory
journal, April 2013

Rheology of high density glass of binary colloidal mixtures in unentangled polymer melts
journal, January 2013

Communication: Generalizing Rosenfeld's excess-entropy scaling to predict long-time diffusivity in dense fluids of Brownian particles: From hard to ultrasoft interactions
journal, February 2011

Super- and sub-Einstein intrinsic viscosities of spherical nanoparticles in concentrated low molecular weight polymer solutions
journal, January 2012

Theory of Phase Separation in Polymer Nanocomposites
journal, July 2006

Slow, nondiffusive dynamics in concentrated nanoemulsions
journal, April 2007

Nanoparticle Polymer Composites: Where Two Small Worlds Meet
journal, November 2006

Configurational entropy and diffusivity of supercooled water
journal, July 2000

Role of Particle Size and Polymer Length in Rheology of Colloid–Polymer Composites
journal, December 2012

Rheological behavior of fumed silica filled polyethylene oxide
journal, February 2019