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Cho NH, Shi J, Murphy RP, Riley JK, Rogers SA, Richards JJ. Extracting microscopic insight from transient dielectric measurements during large amplitude oscillatory shear. SOFT MATTER 2023. [PMID: 37681714 DOI: 10.1039/d3sm00786c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
Probing the transient microstructure of soft matter far from equilibrium is an ongoing challenge to understanding material processing. In this work, we investigate inverse worm-like micelles undergoing large amplitude oscillatory shear using time-resolved dielectric spectroscopy. By controlling the Weissenburg number, we compare the non-linear microstructure response of branched and unbranched worm-like micelles and isolate distinct elastic effects that manifest near flow reversal. We validate our dielectric measurements with small angle neutron scattering and employ sequence of physical processes to disentangle the elastic and viscous contributions of the stress.
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Affiliation(s)
- Noah H Cho
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL, USA.
| | - Jiachun Shi
- Department of Chemical and Biomolecular Engineering, University of Illinois of Urbana-Champaign, Urbana, Illinois, USA
| | - Ryan P Murphy
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD, USA
| | - John K Riley
- Performance Materials Coatings, The Dow Chemical Company, Collegeville, Pennsylvania, USA
| | - Simon A Rogers
- Department of Chemical and Biomolecular Engineering, University of Illinois of Urbana-Champaign, Urbana, Illinois, USA
| | - Jeffrey J Richards
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL, USA.
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Tu CH, Zhou J, Butt HJ, Floudas G. Adsorption Kinetics of cis-1,4-Polyisoprene in Nanopores by In Situ Nanodielectric Spectroscopy. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00821] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chien-Hua Tu
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Jiajia Zhou
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | | | - George Floudas
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
- Department of Physics, University of Ioannina, 45110 Ioannina, Greece
- Institute of Materials Science and Computing, University Research Center of Ioannina (URCI), 45110 Ioannina, Greece
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Tu CH, Zhou J, Doi M, Butt HJ, Floudas G. Interfacial Interactions During In Situ Polymer Imbibition in Nanopores. PHYSICAL REVIEW LETTERS 2020; 125:127802. [PMID: 33016756 DOI: 10.1103/physrevlett.125.127802] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 08/21/2020] [Indexed: 06/11/2023]
Abstract
Using in situ nanodielectric spectroscopy we demonstrate that the imbibition kinetics of cis-1,4-polyisoprene in native alumina nanopores proceeds in two time regimes both with higher effective viscosity than bulk. This finding is discussed by a microscopic picture that considers the competition from an increasing number of chains entering the pores and a decreasing number of fluctuating chain ends. The latter is a direct manifestation of increasing adsorption sites during flow. At the same time, the longest normal mode is somewhat longer than in bulk. This could reflect an increasing density of topological constraints of chains entering the pores with the longer loops formed by other chains.
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Affiliation(s)
- Chien-Hua Tu
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Jiajia Zhou
- School of Chemistry, Beihang University, Key Lab Bioinspired Smart Interfacial Science & Technology of Ministry of Education, Beijing 100191, China
- Center of Soft Matter Physics and Its Applications, Beihang University, Beijing 100191, China
| | - Masao Doi
- Center of Soft Matter Physics and Its Applications, Beihang University, Beijing 100191, China
| | | | - George Floudas
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
- Department of Physics, University of Ioannina, 45110 Ioannina, Greece
- University Research Center of Ioannina (URCI)-Institute of Materials Science and Computing, 45110 Ioannina, Greece
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Masubuchi Y, Doi Y, Uneyama T. Primitive chain network simulations for the interrupted shear response of entangled polymeric liquids. SOFT MATTER 2020; 16:6654-6661. [PMID: 32618991 DOI: 10.1039/d0sm00654h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The non-linear viscoelastic response under interrupted shear flows is one of the interesting characteristics of entangled polymers. In particular, the stress overshoot in the resumed shear has been discussed concerning the recovery of the entanglement network in some studies. In this study, we performed multichain slip-link simulations to observe the molecular structure of an entangled polymer melt. After confirming the reasonable reproducibility of our simulation with the literature data, we analyzed the molecular characteristics following the decoupling approximation. We reasonably found that the segment orientation dominates the stress overshoot even under the resumed shear with minor contributions from the segment stretch and entanglement density. We defined the mitigation function for the recovery of the stress overshoot as a function of the rest time and compared it with the relaxation of the molecular quantities after the initial shear. As a result, we have found that the mitigation of the stress overshoot coincides with the relaxation of entanglement density.
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Affiliation(s)
- Yuichi Masubuchi
- Center of Computational Science, Nagoya University, Nagoya 4648603, Japan. and Department of Materials Physics, Nagoya University, Nagoya 4648603, Japan
| | - Yuya Doi
- Department of Materials Physics, Nagoya University, Nagoya 4648603, Japan
| | - Takashi Uneyama
- Center of Computational Science, Nagoya University, Nagoya 4648603, Japan. and Department of Materials Physics, Nagoya University, Nagoya 4648603, Japan
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Affiliation(s)
- Giovanni Ianniruberto
- Department of Chemical, Materials, and Production Engineering, Federico II University, Piazzale Tecchio 80, 80125 Napoli, Italy
| | - Giuseppe Marrucci
- Department of Chemical, Materials, and Production Engineering, Federico II University, Piazzale Tecchio 80, 80125 Napoli, Italy
| | - Yuichi Masubuchi
- Department of Materials Physics, Nagoya University, Nagoya 4648603, Japan
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Richards JJ, Riley JK. Dielectric RheoSANS: a mutual electrical and rheological characterization technique using small-angle neutron scattering. Curr Opin Colloid Interface Sci 2019. [DOI: 10.1016/j.cocis.2019.05.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Riley JK, Richards JJ, Wagner NJ, Butler PD. Branching and alignment in reverse worm-like micelles studied with simultaneous dielectric spectroscopy and RheoSANS. SOFT MATTER 2018; 14:5344-5355. [PMID: 29808890 DOI: 10.1039/c8sm00770e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Topology and branching play an important but poorly understood role in controlling the mechanical and flow properties of worm-like micelles (WLMs). To address the challenge of characterizing branching during flow of WLMs, dielectric spectroscopy, rheology, and small-angle neutron scattering (dielectric RheoSANS) experiments are performed simultaneously to measure the concurrent evolution of conductivity, permittivity, stress, and segmental anisotropy of reverse WLMs under steady-shear flow. Reverse WLMs are microemulsions comprised of the phospholipid surfactant lecithin dispersed in oil with water solubilized in the micelle core. Their electrical properties are independently sensitive to the WLM topology and dynamics. To isolate the effects of branching, dielectric RheoSANS is performed on WLMs in n-decane, which show fast breakage times and exhibit a continuous branching transition for water-to-surfactant ratios above the corresponding maximum in zero-shear viscosity. The unbranched WLMs in n-decane exhibit only subtle decreases in their electrical properties under flow that are driven by chain alignment and structural anisotropy in the plane perpendicular to the electric field and incident neutron beam. These results are in qualitative agreement with additional measurements on a purely linear WLM system in cyclohexane despite differences in breakage kinetics and a stronger tendency for the latter to shear band. In contrast, the branched micelles in n-decane (higher water content) undergo non-monotonic changes in permittivity and more pronounced decreases in conductivity under flow. The combined steady-shear electrical and microstructural measurements are capable, for the first time, of resolving branch breaking at low shear rates prior to alignment-driven anisotropy at higher shear rates.
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Affiliation(s)
- John K Riley
- Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899-6100, USA.
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Masubuchi Y. Effects of degree of freedom below entanglement segment on relaxation of polymer configuration under fast shear in multi-chain slip-spring simulations. J Chem Phys 2015; 143:224905. [DOI: 10.1063/1.4937172] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Yuichi Masubuchi
- National Composite Center, Nagoya University, Furocho, Chikusaku, Nagoya 4648603, Japan
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Masubuchi Y, Watanabe H. Origin of Stress Overshoot under Start-up Shear in Primitive Chain Network Simulation. ACS Macro Lett 2014; 3:1183-1186. [PMID: 35610821 DOI: 10.1021/mz500627r] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Birefringence measurement demonstrates that the segment orientation of entangled polymers overshoots on start-up of fast shear [Pearson et al. J. Rheol. 1989 33, 517-535]. The stress-optical rule holds for those polymers, so that the overshoot of orientation results in the overshoot of shear stress. On the other hand, an opposite result was deduced from the recent molecular dynamics simulation for bead-spring chain [Lu et al. ACS Macro Lett. 2014 3, 569-573]: the evolution of segment orientation does not overshoot but the chain stretch induces the stress overshoot, even at the shear rate γ̇ smaller than the reciprocal Rouse time, 1/τR. In this study, we performed the primitive chain network simulation to find that our simulation reproduces the overshoot of both stress and orientation and the chain stretch exhibits a slight, monotonic increase but no overshoot. Our result is thus fully consistent with the experiment.
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Affiliation(s)
- Yuichi Masubuchi
- Institute
for Chemical Research, Kyoto University, Gokasyo, Uji, Kyoto 611-0011, Japan
| | - Hiroshi Watanabe
- Institute
for Chemical Research, Kyoto University, Gokasyo, Uji, Kyoto 611-0011, Japan
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Abstract
To optimize automation for polymer processing, attempts have been made to simulate the flow of entangled polymers. In industry, fluid dynamics simulations with phenomenological constitutive equations have been practically established. However, to account for molecular characteristics, a method to obtain the constitutive relationship from the molecular structure is required. Molecular dynamics simulations with atomic description are not practical for this purpose; accordingly, coarse-grained models with reduced degrees of freedom have been developed. Although the modeling of entanglement is still a challenge, mesoscopic models with a priori settings to reproduce entangled polymer dynamics, such as tube models, have achieved remarkable success. To use the mesoscopic models as staging posts between atomistic and fluid dynamics simulations, studies have been undertaken to establish links from the coarse-grained model to the atomistic and macroscopic simulations. Consequently, integrated simulations from materials chemistry to predict the macroscopic flow in polymer processing are forthcoming.
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Affiliation(s)
- Yuichi Masubuchi
- Institute for Chemical Research, Kyoto University, Gokasho Uji-City, Japan 611-0011
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Horio K, Uneyama T, Matsumiya Y, Masubuchi Y, Watanabe H. Rheo-Dielectric Responses of Entangled cis-Polyisoprene under Uniform Steady Shear and LAOS. Macromolecules 2013. [DOI: 10.1021/ma402100t] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kazushi Horio
- Institute
for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Takashi Uneyama
- School
of Natural System, College of Science and Engineering, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - Yumi Matsumiya
- Institute
for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yuichi Masubuchi
- Institute
for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Hiroshi Watanabe
- Institute
for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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Meins T, Dingenouts N, Kübel J, Wilhelm M. In Situ Rheodielectric, ex Situ 2D-SAXS, and Fourier Transform Rheology Investigations of the Shear-Induced Alignment of Poly(styrene-b-1,4-isoprene) Diblock Copolymer Melts. Macromolecules 2012. [DOI: 10.1021/ma300124b] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- T. Meins
- Institute for Chemical
Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstrasse
18, 76128 Karlsruhe, Germany
| | - N. Dingenouts
- Institute for Chemical
Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstrasse
18, 76128 Karlsruhe, Germany
| | - J. Kübel
- Institute for Chemical
Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstrasse
18, 76128 Karlsruhe, Germany
| | - M. Wilhelm
- Institute for Chemical
Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstrasse
18, 76128 Karlsruhe, Germany
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van Ruymbeke E, Masubuchi Y, Watanabe H. Effective Value of the Dynamic Dilution Exponent in Bidisperse Linear Polymers: From 1 to 4/3. Macromolecules 2012. [DOI: 10.1021/ma202167q] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- E. van Ruymbeke
- Bio and Soft
Matter, Institute on Condensed Matter and Nano-science, Université Catholique de Louvain, Louvain-la-Neuve,
Belgium
- Institute of Electronic Structure & Laser, FORTH, Heraklion, Crete, Greece
| | - Y. Masubuchi
- Institute for
Chemical Research, Kyoto University, Gokasyo,
Uji, Kyoto 611-0011, Japan
| | - H. Watanabe
- Institute for
Chemical Research, Kyoto University, Gokasyo,
Uji, Kyoto 611-0011, Japan
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Hyun K, Wilhelm M, Klein CO, Cho KS, Nam JG, Ahn KH, Lee SJ, Ewoldt RH, McKinley GH. A review of nonlinear oscillatory shear tests: Analysis and application of large amplitude oscillatory shear (LAOS). Prog Polym Sci 2011. [DOI: 10.1016/j.progpolymsci.2011.02.002] [Citation(s) in RCA: 907] [Impact Index Per Article: 69.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Uneyama T, Horio K, Watanabe H. Anisotropic mobility model for polymers under shear and its linear response functions. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2011; 83:061802. [PMID: 21797396 DOI: 10.1103/physreve.83.061802] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2011] [Revised: 03/22/2011] [Indexed: 05/31/2023]
Abstract
We propose a simple dynamic model of polymers under shear with an anisotropic mobility tensor. We calculate the shear viscosity, the rheo-dielectric response function, and the parallel relaxation modulus under shear flow deduced from our model. We utilize recently developed linear response theories for nonequilibrium systems to calculate linear response functions. Our results are qualitatively consistent with experimental results. We show that our anisotropic mobility model can reproduce essential dynamical nature of polymers under shear qualitatively. We compare our model with other models or theories such as the convective constraint release model or nonequilibrium linear response theories.
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Affiliation(s)
- Takashi Uneyama
- JST-CREST and Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, Japan.
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Masubuchi Y, Furuichi K, Horio K, Uneyama T, Watanabe H, Ianniruberto G, Greco F, Marrucci G. Primitive chain network simulations for entangled DNA solutions. J Chem Phys 2009; 131:114906. [DOI: 10.1063/1.3225994] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Watanabe H, Matsumiya Y, Takada J, Sasaki H, Matsushima Y, Kuriyama A, Inoue T, Ahn KH, Yu W, Krishnamoorti R. Viscoelastic and Dielectric Behavior of a Polyisoprene/Poly(4-tert-butyl styrene) Miscible Blend. Macromolecules 2007. [DOI: 10.1021/ma070696h] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | | | | | - Tadashi Inoue
- Department of Macromolecular Science, Faculty of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Kyung Hyun Ahn
- School of Chemical and Biological Engineering Seoul National University, Seoul 151-744, South Korea
| | - Wei Yu
- Department of Polymer Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Ramanan Krishnamoorti
- Department of Chemical Engineering, University of Houston, Houston, Texas 77204-4004
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Höfl S, Kremer F, Spiess H, Wilhelm M, Kahle S. Effect of large amplitude oscillatory shear (LAOS) on the dielectric response of 1,4-cis-polyisoprene. POLYMER 2006. [DOI: 10.1016/j.polymer.2006.03.116] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Matsumiya Y, Balsara NP, Kerr JB, Inoue T, Watanabe H. In Situ Dielectric Characterization of Poly(ethylene oxide) Melts Containing Lithium Perchlorate under Steady Shear Flow. Macromolecules 2003. [DOI: 10.1021/ma0304473] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yumi Matsumiya
- Department of Chemical Engineering, University of California, and Environmental Energies and Technologies Division and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, and Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Nitash P. Balsara
- Department of Chemical Engineering, University of California, and Environmental Energies and Technologies Division and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, and Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - John B. Kerr
- Department of Chemical Engineering, University of California, and Environmental Energies and Technologies Division and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, and Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Tadashi Inoue
- Department of Chemical Engineering, University of California, and Environmental Energies and Technologies Division and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, and Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Hiroshi Watanabe
- Department of Chemical Engineering, University of California, and Environmental Energies and Technologies Division and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, and Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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