Structural Dynamics of Strongly Segregated Block Copolymer Electrolytes

Oparaji, Onyekachi; Narayanan, Suresh; Sandy, Alec; Ramakrishnan, Subramanian; Hallinan, Daniel

doi:10.1021/acs.macromol.7b01803

Title: Structural Dynamics of Strongly Segregated Block Copolymer Electrolytes

Abstract

Polymer electrolytes are promising materials for high energy density rechargeable batteries. However, they have low ion transport rates and gradually lose electrode adhesion during cycling. These effects are dependent on polymer structure and dynamics. This motivates an investigation of diblock copolymer electrolyte dynamics. Structural and stress relaxations have been measured with X-ray photon correlation spectroscopy (XPCS) and rheology, respectively, as a function of salt concentration and temperature. The polymer electrolyte studied in this work is a mixture of poly(styrene-b-ethylene oxide), SEO, and lithium bistrifluoromethanesulfonimide (LiTFSI). Results from XPCS experiments showed hyperdiffusive motion for various lithium salt concentrations and at varying temperatures, which is indicative of soft glassy materials. This behavior is attributed to cooperative dynamics. The decay time was a weak, nonmonotonic function of salt concentration and decreased with increasing temperature, in an Arrhenius fashion. In contrast, the shear modulus decreased with increasing salt concentration and increasing temperature. The entanglement relaxation from rheological measurements followed Vogel-Fulcher-Tammann behavior. The structural decay time was slower than the entanglement relaxation time at temperatures above the glass transition temperature, but they were approximately equal at T_g regardless of salt concentration. This may indicate a fundamental connection between cooperative structural motion and polymer chain motionmore » in this material.« less

Authors:

^[1]; Narayanan, Suresh ^[2]; Sandy, Alec ^[2]; Ramakrishnan, Subramanian ^[1];

^[1]

Florida A&M Univ. and Florida State Univ., Tallahassee, FL (United States). FAMU-FSU College of Engineering; Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab)
Argonne National Lab. (ANL), Argonne, IL (United States)

Publication Date:: Fri Mar 23 00:00:00 EDT 2018

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

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1461494

Grant/Contract Number:: AC02-06CH11357

Resource Type:: Accepted Manuscript

Journal Name:: Macromolecules

Additional Journal Information:: Journal Volume: 51; Journal Issue: 7; Journal ID: ISSN 0024-9297

Publisher:: American Chemical Society

Country of Publication:: United States

Language:: English

Subject:: 25 ENERGY STORAGE; 36 MATERIALS SCIENCE

Citation Formats


                    Oparaji, Onyekachi, Narayanan, Suresh, Sandy, Alec, Ramakrishnan, Subramanian, and Hallinan, Daniel. Structural Dynamics of Strongly Segregated Block Copolymer Electrolytes.  United States: N. p., 2018. 
Web.  doi:10.1021/acs.macromol.7b01803.

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                    Oparaji, Onyekachi, Narayanan, Suresh, Sandy, Alec, Ramakrishnan, Subramanian, & Hallinan, Daniel. Structural Dynamics of Strongly Segregated Block Copolymer Electrolytes.  United States.  https://doi.org/10.1021/acs.macromol.7b01803

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                    Oparaji, Onyekachi, Narayanan, Suresh, Sandy, Alec, Ramakrishnan, Subramanian, and Hallinan, Daniel. Fri .  
"Structural Dynamics of Strongly Segregated Block Copolymer Electrolytes".  United States.  https://doi.org/10.1021/acs.macromol.7b01803.  https://www.osti.gov/servlets/purl/1461494.

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@article{osti_1461494,

  title        = {Structural Dynamics of Strongly Segregated Block Copolymer Electrolytes},

  author       = {Oparaji, Onyekachi and Narayanan, Suresh and Sandy, Alec and Ramakrishnan, Subramanian and Hallinan, Daniel},

  abstractNote = {Polymer electrolytes are promising materials for high energy density rechargeable batteries. However, they have low ion transport rates and gradually lose electrode adhesion during cycling. These effects are dependent on polymer structure and dynamics. This motivates an investigation of diblock copolymer electrolyte dynamics. Structural and stress relaxations have been measured with X-ray photon correlation spectroscopy (XPCS) and rheology, respectively, as a function of salt concentration and temperature. The polymer electrolyte studied in this work is a mixture of poly(styrene-b-ethylene oxide), SEO, and lithium bistrifluoromethanesulfonimide (LiTFSI). Results from XPCS experiments showed hyperdiffusive motion for various lithium salt concentrations and at varying temperatures, which is indicative of soft glassy materials. This behavior is attributed to cooperative dynamics. The decay time was a weak, nonmonotonic function of salt concentration and decreased with increasing temperature, in an Arrhenius fashion. In contrast, the shear modulus decreased with increasing salt concentration and increasing temperature. The entanglement relaxation from rheological measurements followed Vogel-Fulcher-Tammann behavior. The structural decay time was slower than the entanglement relaxation time at temperatures above the glass transition temperature, but they were approximately equal at Tg regardless of salt concentration. This may indicate a fundamental connection between cooperative structural motion and polymer chain motion in this material.},

  doi          = {10.1021/acs.macromol.7b01803},

  journal      = {Macromolecules},

  number       = 7,

  volume       = 51,

  place        = {United States},

  year         = {Fri Mar 23 00:00:00 EDT 2018},

  month        = {Fri Mar 23 00:00:00 EDT 2018}

}

Copy to clipboard

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https://doi.org/10.1021/acs.jpcc.2c06941

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Dynamics and relaxation of charge carriers in poly(methylmethacrylate)-lithium salt based polymer electrolytes plasticized with ethylene carbonate

Journal Article Pal, P. ; Ghosh, A., E-mail: sspag@iacs.res.in - Journal of Applied Physics

In this paper, we have studied the dynamics and relaxation of charge carriers in poly(methylmethacrylate)-lithium salt based polymer electrolytes plasticized with ethylene carbonate. Structural and thermal properties have been examined using X-ray diffraction and differential scanning calorimetry, respectively. We have analyzed the complex conductivity spectra by using power law model coupled with the contribution of electrode polarization at low frequencies and high temperatures. The temperature dependence of the ionic conductivity and crossover frequency exhibits Vogel-Tammann-Fulcher type behavior indicating a strong coupling between the ionic and the polymer chain segmental motions. The scaling of the ac conductivity indicates that relaxation dynamicsmore »« less
https://doi.org/10.1063/1.4959985
Universal Relationship between Conductivity and Solvation-Site Connectivity in Ether-Based Polymer Electrolytes

Journal Article Pesko, Danielle M. ; Webb, Michael A. ; Jung, Yukyung ; ... - Macromolecules

In this paper, we perform a joint experimental and computational study of ion transport properties in a systematic set of linear polyethers synthesized via acyclic diene metathesis (ADMET) polymerization. We measure ionic conductivity, σ, and glass transition temperature, T_g, in mixtures of polymer and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) salt. While T_g is known to be an important factor in the ionic conductivity of polymer electrolytes, recent work indicates that the number and proximity of lithium ion solvation sites in the polymer also play an important role, but this effect has yet to be systematically investigated. Here, adding aliphatic linkers to amore »« less
Cited by 53
https://doi.org/10.1021/acs.macromol.6b00851

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Solid-State, Single-Ion Conducting, Polymer Blend Electrolytes with Enhanced Li⁺ Conduction, Electrochemical Stability, and Limiting Current Density

Journal Article Yang, Mengying ; Epps, Thomas H. - Chemistry of Materials

The development of solid-state polymer electrolytes with high lithium conductivity is crucial to improve lithium-ion battery performance and ameliorate the safety challenges associated with current solvent-based electrolytes. Unfortunately, sluggish polymer segmental dynamics are known to constrain conductivity enhancements in solid-state polymer electrolyte systems, limiting overall performance. In this work, a glassy single-ion-conducting polymer, poly[lithium sulfonyl(trifluoromethane sulfonyl)imide methacrylate] (PLiMTFSI), was blended with a flexible polymer, poly(oligo-oxyethylene methyl ether methacrylate) (POEM), and the impact of PLiMTFSI molecular weight and ion concentration on the thermal and ion-conducting behavior of blend electrolytes was investigated. High ionic conductivities approaching 1 × 10^-2 S/cm at 150more »« less
https://doi.org/10.1021/acs.chemmater.3c02389

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Title: Structural Dynamics of Strongly Segregated Block Copolymer Electrolytes

Abstract

Citation Formats

Nonaqueous Liquid Electrolytes for Lithium-Based Rechargeable Batteries journal, October 2004

Polymer Electrolytes journal, July 2013

Lithium Metal Stability in Batteries with Block Copolymer Electrolytes journal, January 2013

Moving to a Solid-State Configuration: A Valid Approach to Making Lithium-Sulfur Batteries Viable for Practical Applications journal, September 2010

Design of superionic polymer electrolytes journal, February 2015

Salt-Concentration Dependence of the Glass Transition Temperature in PEO–NaI and PEO–LiTFSI Polymer Electrolytes journal, October 2013

α-Relaxation in PEO−LiTFSI Polymer Electrolytes journal, January 2002

The Temperature Dependence of Relaxation Mechanisms in Amorphous Polymers and Other Glass-forming Liquids journal, July 1955

Ionic conductivity, glass transition, and local free volume in poly(ethylene oxide) electrolytes: Single and mixed ion conductors journal, May 2003

On the Temperature Dependence of Cooperative Relaxation Properties in Glass‐Forming Liquids journal, July 1965

Analysis of the Glass Transition Behavior of Polymer−Salt Complexes: An Extended Configurational Entropy Model journal, June 2003

Effect of Grain Size on the Ionic Conductivity of a Block Copolymer Electrolyte journal, July 2014

Nanoparticle-Driven Assembly of Highly Conducting Hybrid Block Copolymer Electrolytes journal, January 2015

Retardation of Grain Growth and Grain Boundary Pinning in Athermal Block Copolymer Blend Systems journal, February 2014

Influence of Defect Density on the Rheology of Ordered Block Copolymers journal, January 1996

Smectic Membranes in Motion: Approaching the Fast Limits of X-Ray Photon Correlation Spectroscopy journal, February 2002

Observation of speckle by diffraction with coherent X-rays journal, August 1991

Diffusing-wave spectroscopy: dynamic light scattering in the multiple scattering limit journal, January 1990

Photon Correlation Spectroscopy of Colloidal Palladium Using a Coherent X-Ray Beam journal, December 1996

Condensed Exponential Correlation Functions in Multicomponent Polymer Blends Measured by X-ray Photon Correlation Spectroscopy journal, December 2006

Relationship between Structural and Stress Relaxation in a Block-Copolymer Melt journal, June 2006

Relaxation processes in a lower disorder order transition diblock copolymer journal, February 2015

The Static and Dynamic Structure Factor of a Diblock Copolymer Melt via Small-Angle X-ray Scattering and X-ray Photon Correlation Spectroscopy journal, October 2013

Segmental motion in poly(styrene‐ b ‐1,4‐isoprene) block copolymers in the disordered state journal, November 1992

Dynamic Signatures of Microphase Separation in a Block Copolymer Melt Determined by X-ray Photon Correlation Spectroscopy and Rheology journal, February 2010

Dynamic Structure Factor of Diblock Copolymers in the Ordering Regime journal, October 1997

Salt Doping in PEO-Containing Block Copolymers: Counterion and Concentration Effects journal, April 2009

Phase Behavior of a Block Copolymer/Salt Mixture through the Order-to-Disorder Transition journal, April 2014

Structure and Ionic Conductivity of Polystyrene- block -poly(ethylene oxide) Electrolytes in the High Salt Concentration Limit journal, February 2016

Anionic polymerization: High vacuum techniques journal, January 2000

Crystallite dissolution in PEO-based polymers induced by water sorption journal, September 2016

X-ray Photon Correlation Spectroscopy Studies of Surfaces and Thin Films journal, September 2014

Microrheology of polymeric solutions using x-ray photon correlation spectroscopy journal, June 2005

Dynamic light scattering from bulk poly(n-hexylmethacrylate) near and above the glass transition journal, October 1992

Effect of quench depth on grain structure in quiescently ordered block copolymers journal, June 2001

Effect of block copolymer morphology on crystallization and water transport journal, June 2017

Phase behavior and Li + Ion conductivity of styrene‐ethylene oxide multiblock copolymer electrolytes journal, February 2016

Thermodynamic Properties of Block Copolymer Electrolytes Containing Imidazolium and Lithium Salts journal, October 2010

Phase Behavior of a Block Copolymer in Solvents of Varying Selectivity journal, August 2000

Transient Solidlike Behavior near the Cylinder/Disorder Transition in Block Copolymer Solutions journal, August 2006

Theory of melt polyelectrolyte blends and block copolymers: Phase behavior, surface tension, and microphase periodicity journal, January 2015

Thermodynamics of Block Copolymers with and without Salt journal, December 2013

Unifying Weak- and Strong-Segregation Block Copolymer Theories journal, January 1996

Gaussian- to stretched-coil transition in block copolymer melts journal, August 1990

Block Copolymer Theory. III. Statistical Mechanics of the Microdomain Structure journal, July 1975

Structure–Conductivity Relationships of Block Copolymer Membranes Based on Hydrated Protic Polymerized Ionic Liquids: Effect of Domain Spacing journal, March 2016

Nanoparticle Motion within Glassy Polymer Melts journal, February 2009

Dynamics of Cadmium Sulfide Nanoparticles within Polystyrene Melts journal, September 2014

Aging processes and scale dependence in soft glassy colloidal suspensions journal, March 2003

Aging and rheology in soft materials journal, March 2000

Rheological constitutive equation for a model of soft glassy materials journal, July 1998

Rheology of Soft Glassy Materials journal, March 1997

“Gel-like” Mechanical Reinforcement in Polymer Nanocomposite Melts journal, January 2010

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

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

Anomalous dynamical light scattering in soft glassy gels journal, November 2001

Dynamical crossover between hyperdiffusion and subdiffusion of polymer-grafted nanoparticles in a polymer matrix journal, September 2013

Comparative study of poly(ethylene oxide) electrolytes made with LiN(CF3SO2)2, LiCF3SO3 and LiClO4: Thermal properties and conductivity behaviour journal, January 1992

The influence of phase segregation on properties of semicrystalline PEO:LiTFSI electrolytes journal, September 2008

Effect of Molecular Weight on the Mechanical and Electrical Properties of Block Copolymer Electrolytes journal, June 2007

Closed-form solution for horizontal and vertical shiftings of viscoelastic material functions in frequency domain journal, March 2016

Rheology of ordered and disordered symmetric poly(ethylenepropylene)-poly(ethylethylene) diblock copolymers journal, April 1990

Rheology and Shear-Induced Alignment of Lamellar Diblock and Triblock Copolymers journal, November 1995

Rheology of lamellar polystyrene-block-polyisoprene diblock copolymers journal, September 1998

Isochronal temperature–pressure superpositioning of the α-relaxation in type-A glass formers journal, January 2003

Dielectric and Viscoelastic Investigation of Segmental Dynamics of Polystyrene above Glass Transition Temperature: Cooperative Sequence Length and Relaxation Mode Distribution journal, June 2011

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

Rapid Poly(ethylene oxide) Segmental Dynamics in Blends with Poly(methyl methacrylate) journal, March 2003

Viscoelastic behavior of cubic phases in block copolymer melts journal, January 1999

A Separation Method of Responses from Large Scale Motions and Chain Relaxations for Viscoelastic Properties of Symmetric Poly(styrene-b-2-vinylpyridine)s in the Ordered State journal, January 2013

Crystallization Kinetics of Glyme−LiX and PEO−LiX Polymer Electrolytes journal, July 2007

Thermal behavior of new polymer electrolytes journal, February 1995

Mechanisms of Chain Diffusion in Lamellar Block Copolymers journal, July 1995

Role of Grain Boundary Defects During Grain Coarsening of Lamellar Block Copolymers journal, December 2012

Rapid Transitions between Defect Configurations in a Block Copolymer Melt journal, July 2006

Time-resolved atomic force microscopy imaging studies of asymmetric PS-b-PMMA ultrathin films: Dislocation and disclination transformations, defect mobility, and evolution of nanoscale morphology journal, January 2001

Structural Relaxation of Dense Suspensions of Soft Giant Micelles journal, November 1999

Nonaqueous Liquid Electrolytes for Lithium-Based Rechargeable Batteries
journal, October 2004

Polymer Electrolytes
journal, July 2013

Lithium Metal Stability in Batteries with Block Copolymer Electrolytes
journal, January 2013

Moving to a Solid-State Configuration: A Valid Approach to Making Lithium-Sulfur Batteries Viable for Practical Applications
journal, September 2010

Design of superionic polymer electrolytes
journal, February 2015

Salt-Concentration Dependence of the Glass Transition Temperature in PEO–NaI and PEO–LiTFSI Polymer Electrolytes
journal, October 2013

α-Relaxation in PEO−LiTFSI Polymer Electrolytes
journal, January 2002

The Temperature Dependence of Relaxation Mechanisms in Amorphous Polymers and Other Glass-forming Liquids
journal, July 1955

Ionic conductivity, glass transition, and local free volume in poly(ethylene oxide) electrolytes: Single and mixed ion conductors
journal, May 2003

On the Temperature Dependence of Cooperative Relaxation Properties in Glass‐Forming Liquids
journal, July 1965

Analysis of the Glass Transition Behavior of Polymer−Salt Complexes: An Extended Configurational Entropy Model
journal, June 2003

Effect of Grain Size on the Ionic Conductivity of a Block Copolymer Electrolyte
journal, July 2014

Nanoparticle-Driven Assembly of Highly Conducting Hybrid Block Copolymer Electrolytes
journal, January 2015

Retardation of Grain Growth and Grain Boundary Pinning in Athermal Block Copolymer Blend Systems
journal, February 2014

Influence of Defect Density on the Rheology of Ordered Block Copolymers
journal, January 1996

Smectic Membranes in Motion: Approaching the Fast Limits of X-Ray Photon Correlation Spectroscopy
journal, February 2002

Observation of speckle by diffraction with coherent X-rays
journal, August 1991

Diffusing-wave spectroscopy: dynamic light scattering in the multiple scattering limit
journal, January 1990

Photon Correlation Spectroscopy of Colloidal Palladium Using a Coherent X-Ray Beam
journal, December 1996

Condensed Exponential Correlation Functions in Multicomponent Polymer Blends Measured by X-ray Photon Correlation Spectroscopy
journal, December 2006

Relationship between Structural and Stress Relaxation in a Block-Copolymer Melt
journal, June 2006

Relaxation processes in a lower disorder order transition diblock copolymer
journal, February 2015

The Static and Dynamic Structure Factor of a Diblock Copolymer Melt via Small-Angle X-ray Scattering and X-ray Photon Correlation Spectroscopy
journal, October 2013

Segmental motion in poly(styrene‐ b ‐1,4‐isoprene) block copolymers in the disordered state
journal, November 1992

Dynamic Signatures of Microphase Separation in a Block Copolymer Melt Determined by X-ray Photon Correlation Spectroscopy and Rheology
journal, February 2010

Dynamic Structure Factor of Diblock Copolymers in the Ordering Regime
journal, October 1997

Salt Doping in PEO-Containing Block Copolymers: Counterion and Concentration Effects
journal, April 2009

Phase Behavior of a Block Copolymer/Salt Mixture through the Order-to-Disorder Transition
journal, April 2014

Structure and Ionic Conductivity of Polystyrene- block -poly(ethylene oxide) Electrolytes in the High Salt Concentration Limit
journal, February 2016

Anionic polymerization: High vacuum techniques
journal, January 2000

Crystallite dissolution in PEO-based polymers induced by water sorption
journal, September 2016

X-ray Photon Correlation Spectroscopy Studies of Surfaces and Thin Films
journal, September 2014

Microrheology of polymeric solutions using x-ray photon correlation spectroscopy
journal, June 2005

Dynamic light scattering from bulk poly(n-hexylmethacrylate) near and above the glass transition
journal, October 1992

Effect of quench depth on grain structure in quiescently ordered block copolymers
journal, June 2001

Effect of block copolymer morphology on crystallization and water transport
journal, June 2017

Phase behavior and Li ⁺ Ion conductivity of styrene‐ethylene oxide multiblock copolymer electrolytes
journal, February 2016

Thermodynamic Properties of Block Copolymer Electrolytes Containing Imidazolium and Lithium Salts
journal, October 2010

Phase Behavior of a Block Copolymer in Solvents of Varying Selectivity
journal, August 2000

Transient Solidlike Behavior near the Cylinder/Disorder Transition in Block Copolymer Solutions
journal, August 2006

Theory of melt polyelectrolyte blends and block copolymers: Phase behavior, surface tension, and microphase periodicity
journal, January 2015

Thermodynamics of Block Copolymers with and without Salt
journal, December 2013

Unifying Weak- and Strong-Segregation Block Copolymer Theories
journal, January 1996

Gaussian- to stretched-coil transition in block copolymer melts
journal, August 1990

Block Copolymer Theory. III. Statistical Mechanics of the Microdomain Structure
journal, July 1975

Structure–Conductivity Relationships of Block Copolymer Membranes Based on Hydrated Protic Polymerized Ionic Liquids: Effect of Domain Spacing
journal, March 2016

Nanoparticle Motion within Glassy Polymer Melts
journal, February 2009

Dynamics of Cadmium Sulfide Nanoparticles within Polystyrene Melts
journal, September 2014

Aging processes and scale dependence in soft glassy colloidal suspensions
journal, March 2003

Aging and rheology in soft materials
journal, March 2000

Rheological constitutive equation for a model of soft glassy materials
journal, July 1998

Rheology of Soft Glassy Materials
journal, March 1997

“Gel-like” Mechanical Reinforcement in Polymer Nanocomposite Melts
journal, January 2010

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

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

Anomalous dynamical light scattering in soft glassy gels
journal, November 2001

Dynamical crossover between hyperdiffusion and subdiffusion of polymer-grafted nanoparticles in a polymer matrix
journal, September 2013

Comparative study of poly(ethylene oxide) electrolytes made with LiN(CF3SO2)2, LiCF3SO3 and LiClO4: Thermal properties and conductivity behaviour
journal, January 1992

The influence of phase segregation on properties of semicrystalline PEO:LiTFSI electrolytes
journal, September 2008

Effect of Molecular Weight on the Mechanical and Electrical Properties of Block Copolymer Electrolytes
journal, June 2007

Closed-form solution for horizontal and vertical shiftings of viscoelastic material functions in frequency domain
journal, March 2016

Rheology of ordered and disordered symmetric poly(ethylenepropylene)-poly(ethylethylene) diblock copolymers
journal, April 1990

Rheology and Shear-Induced Alignment of Lamellar Diblock and Triblock Copolymers
journal, November 1995

Rheology of lamellar polystyrene-block-polyisoprene diblock copolymers
journal, September 1998

Isochronal temperature–pressure superpositioning of the α-relaxation in type-A glass formers
journal, January 2003

Dielectric and Viscoelastic Investigation of Segmental Dynamics of Polystyrene above Glass Transition Temperature: Cooperative Sequence Length and Relaxation Mode Distribution
journal, June 2011

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

Rapid Poly(ethylene oxide) Segmental Dynamics in Blends with Poly(methyl methacrylate)
journal, March 2003

Viscoelastic behavior of cubic phases in block copolymer melts
journal, January 1999

A Separation Method of Responses from Large Scale Motions and Chain Relaxations for Viscoelastic Properties of Symmetric Poly(styrene-b-2-vinylpyridine)s in the Ordered State
journal, January 2013

Crystallization Kinetics of Glyme−LiX and PEO−LiX Polymer Electrolytes
journal, July 2007

Thermal behavior of new polymer electrolytes
journal, February 1995

Mechanisms of Chain Diffusion in Lamellar Block Copolymers
journal, July 1995

Role of Grain Boundary Defects During Grain Coarsening of Lamellar Block Copolymers
journal, December 2012

Rapid Transitions between Defect Configurations in a Block Copolymer Melt
journal, July 2006

Time-resolved atomic force microscopy imaging studies of asymmetric PS-b-PMMA ultrathin films: Dislocation and disclination transformations, defect mobility, and evolution of nanoscale morphology
journal, January 2001

Structural Relaxation of Dense Suspensions of Soft Giant Micelles
journal, November 1999

Electrochemical Kinetics of Lithium Plating and Stripping in Solid Polymer Electrolytes: Pulsed Voltammetry
journal, January 2019

Block copolymers for supercapacitors, dielectric capacitors and batteries
journal, March 2019

A new framework for X-ray photon correlation spectroscopy analysis from polycrystalline materials
journal, December 2018