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Sasaki K, Takatsuka M, Shinyashiki N, Ngai KL. Relating the dynamics of hydrated poly(vinyl pyrrolidone) to the dynamics of highly asymmetric mixtures and polymer blends. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115907] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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2
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Musino D, Oberdisse J, Sztucki M, Alegria A, Genix AC. Partition of Coating Agents between Nanoparticle Interfaces and the Polymer in Nanocomposites. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01506] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dafne Musino
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095 Montpellier, France
| | - Julian Oberdisse
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095 Montpellier, France
| | - Michael Sztucki
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS 40220, 38043 Grenoble Cedex 9, France
| | - Angel Alegria
- Departamento de Fisica de Materiales (UPV/EHU) and Materials Physics Center (CSIC-UPV/EHU), Paseo Manuel Lardizábal 5, 20018 San Sebastian, Spain
| | - Anne-Caroline Genix
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095 Montpellier, France
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3
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Pipertzis A, Papamokos G, Mühlinghaus M, Mezger M, Scherf U, Floudas G. What Determines the Glass Temperature and dc-Conductivity in Imidazolium-Polymerized Ionic Liquids with a Polythiophene Backbone? Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00226] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Achilleas Pipertzis
- Department of Physics, University of Ioannina, P.O. Box 1186, 451 10 Ioannina, Greece
| | - George Papamokos
- Department of Physics, University of Ioannina, P.O. Box 1186, 451 10 Ioannina, Greece
| | | | - Markus Mezger
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Ullrich Scherf
- Bergische Universität Wuppertal, 42119 Wuppertal, Germany
| | - George Floudas
- Department of Physics, University of Ioannina, P.O. Box 1186, 451 10 Ioannina, Greece
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
- Institute of Materials Science and Computing, University Research Center of Ioannina (URCI), 45110 Ioannina, Greece
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4
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Körber T, Minikejew R, Pötzschner B, Bock D, Rössler EA. Dynamically asymmetric binary glass formers studied by dielectric and NMR spectroscopy. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2019; 42:143. [PMID: 31773406 DOI: 10.1140/epje/i2019-11909-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 10/16/2019] [Indexed: 06/10/2023]
Abstract
We investigate the component dynamics in asymmetric binary glass formers. Focusing on the dielectric spectra of the high-Tg components m-tricresyl phosphate and quinaldine mixed with toluene as low-Tg component, the broadend spectra cannot be described by Kohlrausch or Cole-Davidson (CD) functions. Instead, we apply a generalized CD function which allows to control the width of the susceptibility independently of its high-frequency flank. The spectra show a common broadening and failure of the frequency-temperature superposition with increasing toluene concentration. This is confirmed by stimulated echo experiments showing an increased stretching of the probed orientational correlation function. In analogy to the definition of Tg, we consider "isodynamic points". For each component, a different but linear concentration dependence of 1/Tiso is revealed, indicating different time scales. Qualitativly, we do not find significant differences for the present mixtures with Tg-contrasts of 63-89K compared to those with larger Tg-contrast ( [Formula: see text] K): Whereas the high-Tg component shows relaxation features similar to those of neat glass formers, yet, with "atypical" weak relaxation broadening, the faster low-Tg component displays pronounced dynamic heterogeneities. This is supported by scrutinizing NMR relaxation data of several mixtures investigated previously as a function of concentration. A universal evolution of the dynamics of the high-Tg as well as the low-Tg component is suggested for mixtures with high [Formula: see text]Tg .
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Affiliation(s)
- Th Körber
- Universität Bayreuth, Anorganische Chemie III and Nordbayerisches NMR-Zentrum, D-95440, Bayreuth, Germany
| | - R Minikejew
- Universität Bayreuth, Anorganische Chemie III and Nordbayerisches NMR-Zentrum, D-95440, Bayreuth, Germany
| | - B Pötzschner
- Universität Bayreuth, Anorganische Chemie III and Nordbayerisches NMR-Zentrum, D-95440, Bayreuth, Germany
| | - D Bock
- Universität Bayreuth, Anorganische Chemie III and Nordbayerisches NMR-Zentrum, D-95440, Bayreuth, Germany
| | - E A Rössler
- Universität Bayreuth, Anorganische Chemie III and Nordbayerisches NMR-Zentrum, D-95440, Bayreuth, Germany.
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5
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Schwartz GA, Ortega L, Meyer M, Isitman NA, Sill C, Westermann S, Cerveny S. Extended Adam–Gibbs Approach To Describe the Segmental Dynamics of Cross-Linked Miscible Rubber Blends. Macromolecules 2018. [DOI: 10.1021/acs.macromol.7b02432] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gustavo A. Schwartz
- Centro de Física
de Materiales (CSIC-UPV/EHU), P. M. de Lardizabal 5, 20018 San Sebastián, Spain
- Donostia International
Physics Center, P. M. de Lardizabal 4, 20018 San Sebastián, Spain
| | - Lucía Ortega
- Centro de Física
de Materiales (CSIC-UPV/EHU), P. M. de Lardizabal 5, 20018 San Sebastián, Spain
- Donostia International
Physics Center, P. M. de Lardizabal 4, 20018 San Sebastián, Spain
| | - Mathias Meyer
- Goodyear Innovation
Center, Goodyear S.A., Colmar-Berg L-7750, Luxembourg
| | - Nihat Ali Isitman
- Goodyear Innovation
Center, Goodyear S.A., Colmar-Berg L-7750, Luxembourg
| | - Clemens Sill
- Goodyear Innovation
Center, Goodyear S.A., Colmar-Berg L-7750, Luxembourg
| | - Stephan Westermann
- Goodyear Innovation
Center, Goodyear S.A., Colmar-Berg L-7750, Luxembourg
| | - Silvina Cerveny
- Centro de Física
de Materiales (CSIC-UPV/EHU), P. M. de Lardizabal 5, 20018 San Sebastián, Spain
- Donostia International
Physics Center, P. M. de Lardizabal 4, 20018 San Sebastián, Spain
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6
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Valenti S, Capaccioli S, Ngai KL. Contrasting two different interpretations of the dynamics in binary glass forming mixtures. J Chem Phys 2018; 148:054504. [DOI: 10.1063/1.5012088] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- S. Valenti
- Dipartimento di Fisica, Università di Pisa, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy
| | - S. Capaccioli
- Dipartimento di Fisica, Università di Pisa, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy
- CNR-IPCF, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy
| | - K. L. Ngai
- CNR-IPCF, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy
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8
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Choi UH, Liang S, Chen Q, Runt J, Colby RH. Segmental Dynamics and Dielectric Constant of Polysiloxane Polar Copolymers as Plasticizers for Polymer Electrolytes. ACS APPLIED MATERIALS & INTERFACES 2016; 8:3215-3225. [PMID: 26735584 DOI: 10.1021/acsami.5b10797] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Dielectric relaxation spectroscopy was used to investigate the segmental dynamics of a series of siloxane-based polar copolymers combining pendant cyclic carbonates and short poly(ethylene oxide) (PEO) chains. The homopolymer with cyclic carbonate as the only side chain exhibits higher glass transition temperature T(g) and dielectric constant ε(s) than the one with only PEO side chains. For their copolymers the observed T(g) (agreeing well with the predicted values from the Fox equation) and ε(s) decrease with increasing PEO side chain content. These polar polymers exhibit a glassy β relaxation with Arrhenius character, attributed to local chain motions of side groups attached to the main chain, and a segmental α relaxation, associated with the glass transition with a Vogel temperature dependence. As PEO side chain content increases, narrowing of the local glassy β relaxation was observed in the copolymers. The segmental α dynamics were observed to be faster, with an increase in breadth and decrease in strength with increasing PEO side chain content. Owing to the trade-off between T(g) and ε(s), copolymers of intermediate composition result in the highest ionic conductivity when these copolymers are used to plasticize Li single-ion conducting ionomers.
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Affiliation(s)
- U Hyeok Choi
- Materials Science and Engineering, Pennsylvania State University , University Park, Pennsylvania 16802, United States
- Functional Composites Department, Korea Institute of Materials Science , Changwon 642-831, Korea
| | - Siwei Liang
- Materials Science and Engineering, Pennsylvania State University , University Park, Pennsylvania 16802, United States
- Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory , One Cyclotron Road, Berkeley, California 94720, United States
| | - Quan Chen
- Materials Science and Engineering, Pennsylvania State University , University Park, Pennsylvania 16802, United States
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
| | - James Runt
- Materials Science and Engineering, Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Ralph H Colby
- Materials Science and Engineering, Pennsylvania State University , University Park, Pennsylvania 16802, United States
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9
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Choudhary S, Sengwa RJ. Structural and dielectric studies of amorphous and semicrystalline polymers blend-based nanocomposite electrolytes. J Appl Polym Sci 2014. [DOI: 10.1002/app.41311] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shobhna Choudhary
- Department of Physics, Dielectric Research Laboratory; Jai Narain Vyas University; Jodhpur 342 005 India
| | - Ram Jeewan Sengwa
- Department of Physics, Dielectric Research Laboratory; Jai Narain Vyas University; Jodhpur 342 005 India
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10
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Bhowmik D, Pomposo JA, Juranyi F, García Sakai V, Zamponi M, Arbe A, Colmenero J. Investigation of a Nanocomposite of 75 wt % Poly(methyl methacrylate) Nanoparticles with 25 wt % Poly(ethylene oxide) Linear Chains: A Quasielatic Neutron Scattering, Calorimetric, and WAXS Study. Macromolecules 2014. [DOI: 10.1021/ma500215f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- D. Bhowmik
- Donostia International Physics
Center, Paseo Manuel de Lardizabal
4, 20018 San Sebastián, Spain
| | - J. A. Pomposo
- Centro de Física de Materiales (CSIC−UPV/EHU)
− Materials Physics Center (MPC), Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
- Departamento
de Física de Materiales, UPV/EHU, Apartado 1072, 20080 San Sebastián, Spain
- IKERBASQUE
- Basque Foundation for Science, Alameda
Urquijo 36, 48011 Bilbao, Spain
| | - F. Juranyi
- Laboratory for Neutron
Scattering, Paul Scherrer Institut, CH-5232 Villigen, Switzerland
| | - V. García Sakai
- ISIS Facility, Rutherford Appleton Laboratory, Harwell Science & Innovation Campus, Chilton, Didcot OX11 0QX, United Kingdom
| | - M. Zamponi
- Jülich
Centre for Neutron Science, Forschungszentrum Jülich GmbH, outstation at Heinz
Maier-Leibnitz Zentrum, Lichtenbergstr. 1, 85747 Garching, Germany
| | - A. Arbe
- Centro de Física de Materiales (CSIC−UPV/EHU)
− Materials Physics Center (MPC), Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
| | - J. Colmenero
- Donostia International Physics
Center, Paseo Manuel de Lardizabal
4, 20018 San Sebastián, Spain
- Centro de Física de Materiales (CSIC−UPV/EHU)
− Materials Physics Center (MPC), Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
- Departamento
de Física de Materiales, UPV/EHU, Apartado 1072, 20080 San Sebastián, Spain
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11
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Harmandaris VA, Kremer K, Floudas G. Dynamic heterogeneity in fully miscible blends of polystyrene with oligostyrene. PHYSICAL REVIEW LETTERS 2013; 110:165701. [PMID: 23679622 DOI: 10.1103/physrevlett.110.165701] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Indexed: 05/09/2023]
Abstract
Binary blends of polystyrene with oligostyrene are perfectly miscible (χ=0) yet dynamically heterogeneous. This is evidenced by independent probing of the dipole relaxation perpendicular to the backbone by dielectric spectroscopy and molecular dynamics. The self-concentration model with a single intramolecular length scale qualitatively describes the slower segmental dynamics. A quantitative comparison based on MD, however, requires a composition-dependent length scale. The pertinent dynamic length scale that best describes the slow segmental dynamics in miscible blends relates to both intra- and intermolecular contributions.
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Affiliation(s)
- Vagelis A Harmandaris
- Department of Applied Mathematics, University of Crete, and IACM FORTH GR-71110 Heraklion, Greece.
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12
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Ngai KL, Capaccioli S. Unified explanation of the anomalous dynamic properties of highly asymmetric polymer blends. J Chem Phys 2013; 138:054903. [DOI: 10.1063/1.4789585] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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13
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Zardalidis G, Floudas G. Pressure Effects on the Dynamic Heterogeneity of Miscible Poly(vinyl acetate)/Poly(ethylene oxide) Blends. Macromolecules 2012. [DOI: 10.1021/ma301086a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- George Zardalidis
- Department of Physics, University of Ioannina, P.O. Box 1186, GR-45110 Ioannina,
Greece, and Foundation for Research and Technology-Hellas (FORTH), Biomedical Research Institute (BRI), Ioannina, Greece
| | - George Floudas
- Department of Physics, University of Ioannina, P.O. Box 1186, GR-45110 Ioannina,
Greece, and Foundation for Research and Technology-Hellas (FORTH), Biomedical Research Institute (BRI), Ioannina, Greece
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14
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Effect of molecular weight distribution on polymer diffusion during film formation of two-component high-/low-molecular weight latex particles. POLYMER 2012. [DOI: 10.1016/j.polymer.2011.12.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Still T, Retsch M, Jonas U, Sainidou R, Rembert P, Mpoukouvalas K, Fytas G. Vibrational Eigenfrequencies and Mechanical Properties of Mesoscopic Copolymer Latex Particles. Macromolecules 2010. [DOI: 10.1021/ma1001589] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tim Still
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Markus Retsch
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Ulrich Jonas
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- Department of Materials Science and Technology, University of Crete and FORTH, 71110 Heraklion, Greece
| | - Rebecca Sainidou
- Laboratoire Ondes et Milieux Complexes LOMC FRE CNRS 3102, Université du Havre, Pl. R. Schuman, 76610 Le Havre, France
| | - Pascal Rembert
- Laboratoire Ondes et Milieux Complexes LOMC FRE CNRS 3102, Université du Havre, Pl. R. Schuman, 76610 Le Havre, France
| | | | - George Fytas
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- Department of Materials Science and Technology, University of Crete and FORTH, 71110 Heraklion, Greece
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16
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Gitsas A, Floudas G, Butt HJ, Pakula T, Matyjaszewski K. Effects of Nanoscale Confinement and Pressure on the Dynamics of pODMA-b-ptBA-b-pODMA Triblock Copolymers. Macromolecules 2010. [DOI: 10.1021/ma902639g] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- A. Gitsas
- University of Ioannina, Department of Physics, P.O. Box 1186, 451 10, Greece and Biomedical Research Institute (BRI-FORTH), Ioannina, Greece
| | - G. Floudas
- University of Ioannina, Department of Physics, P.O. Box 1186, 451 10, Greece and Biomedical Research Institute (BRI-FORTH), Ioannina, Greece
| | - H.-J. Butt
- Max-Planck Institut für Polymerforschung, 55128 Mainz, Germany
| | - T. Pakula
- Max-Planck Institut für Polymerforschung, 55128 Mainz, Germany
| | - K. Matyjaszewski
- Center for Macromolecules Engineering, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213
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17
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Fragiadakis D, Runt J. Microstructure and Dynamics of Semicrystalline Poly(ethylene oxide)−Poly(vinyl acetate) Blends. Macromolecules 2009. [DOI: 10.1021/ma9020938] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Daniel Fragiadakis
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - James Runt
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
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Schwartz GA, Paluch M, Alegría A, Colmenero J. High pressure dynamics of polymer/plasticizer mixtures. J Chem Phys 2009; 131:044906. [PMID: 19655918 DOI: 10.1063/1.3187938] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Plasticizers are usually added to polymers to give them the desired flexibility and processability by changing the dynamical properties of the polymer chains. It is therefore important to give a quantitative description about how the dynamic behavior of a given polymer is modified by the incorporation of a second component. We analyze in this work, by means of dielectric spectroscopy, the dynamics of poly(vinyl acetate)/diethyl phthalate mixtures, at different concentrations, over a broad range of frequency, pressure, and temperature. The dynamics of these particular mixtures show only one main relaxation process contrarily to what is observed in athermal miscible polymer mixtures. From the dielectric spectra the maximum relaxation time as a function of pressure and temperature was obtained and analyzed. We studied the pressure dependence of the glass transition temperature as well as the fragility of both the neat components and the mixtures at different concentrations (on the rich polymer range). Finally, the experimental data were rationalized within the framework of an Adam-Gibbs (AG) based approach recently developed [G. A. Schwartz et al., J. Chem. Phys. 127, 154907 (2007)]. The model, originally developed for athermal blends, is here modified to take into account the non-negligible interaction between polymer and plasticizer. We found that the temperature-pressure dependence of the alpha-relaxation time is very well described by this AG extended model.
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Affiliation(s)
- Gustavo Ariel Schwartz
- Centro de Física de Materiales (CSIC-UPV/EHU)-Materials Physics Center MPC, Edificio Korta, 20018 San Sebastián, Spain.
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Gitsas A, Floudas G. Pressure Dependence of the Glass Transition in Atactic and Isotactic Polypropylene. Macromolecules 2008. [DOI: 10.1021/ma8014992] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- A. Gitsas
- Department of Physics, University of Ioannina, Post Office Box 1186, GR-45110 Ioannina, Greece, and Foundation for Research and Technology-Hellas (FORTH), Biomedical Research Institute (BRI), GR-71110 Heraklion, Crete, Greece
| | - G. Floudas
- Department of Physics, University of Ioannina, Post Office Box 1186, GR-45110 Ioannina, Greece, and Foundation for Research and Technology-Hellas (FORTH), Biomedical Research Institute (BRI), GR-71110 Heraklion, Crete, Greece
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Liu J, Wu S, Cao D, Zhang L. Effects of pressure on structure and dynamics of model elastomers: A molecular dynamics study. J Chem Phys 2008; 129:154905. [DOI: 10.1063/1.2996009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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