1
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Fraenza CC, Mattea C, Farrher GD, Ordikhani-Seyedlar A, Stapf S, Anoardo E. Rouse dynamics in PEO-PPO-PEO block-copolymers in aqueous solution as observed through fast field-cycling NMR relaxometry. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.07.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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2
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Corrales TP, Laroze D, Zardalidis G, Floudas G, Butt HJ, Kappl M. Dynamic Heterogeneity and Phase Separation Kinetics in Miscible Poly(vinyl acetate)/Poly(ethylene oxide) Blends by Local Dielectric Spectroscopy. Macromolecules 2013. [DOI: 10.1021/ma4007158] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - David Laroze
- Max Planck Institute for Polymer Research, D-55128 Mainz, Germany
- Instituto
de Alta Investigación, Universidad de Tarapacá, Casilla 7-D Arica, Chile
| | - George Zardalidis
- Department
of Physics, University of Ioannina, 45110 Ioannina, Greece
| | - George Floudas
- Max Planck Institute for Polymer Research, D-55128 Mainz, Germany
- Department
of Physics, University of Ioannina, 45110 Ioannina, Greece
| | - Hans-Jürgen Butt
- Max Planck Institute for Polymer Research, D-55128 Mainz, Germany
| | - Michael Kappl
- Max Planck Institute for Polymer Research, D-55128 Mainz, Germany
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3
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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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4
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Evans CM, Torkelson JM. Major Roles of Blend Partner Fragility and Dye Placement on Component Glass Transition Temperatures: Fluorescence Study of Near-Infinitely Dilute Species in Binary Blends. Macromolecules 2012. [DOI: 10.1021/ma3014614] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Christopher M. Evans
- Department
of Chemical and Biological Engineering and ‡Department of Materials Science
and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - John M. Torkelson
- Department
of Chemical and Biological Engineering and ‡Department of Materials Science
and Engineering, Northwestern University, Evanston, Illinois 60208, United States
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5
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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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6
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Zhao J, Ediger MD. Segmental Dynamics of Dilute Poly(ethylene oxide) in Low and High Molecular Weight Glass-Formers. Macromolecules 2011. [DOI: 10.1021/ma201889b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Junshu Zhao
- Department of Chemistry, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| | - M. D. Ediger
- Department of Chemistry, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
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7
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Evans CM, Sandoval RW, Torkelson JM. Glass Transition Temperature of a Component near Infinite Dilution in Binary Polymer Blends: Determination via Fluorescence Spectroscopy. Macromolecules 2011. [DOI: 10.1021/ma201259w] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Christopher M. Evans
- Department of Chemical and Biological Engineering and ‡Department of Materials Science, Northwestern University, Evanston, Illinois 60208, United States
| | - Robert W. Sandoval
- Department of Chemical and Biological Engineering and ‡Department of Materials Science, Northwestern University, Evanston, Illinois 60208, United States
| | - John M. Torkelson
- Department of Chemical and Biological Engineering and ‡Department of Materials Science, Northwestern University, Evanston, Illinois 60208, United States
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8
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Lipscomb CE, Mahanthappa MK. Microphase Separation Mode-Dependent Mechanical Response in Poly(vinyl ester)/PEO Triblock Copolymers. Macromolecules 2011. [DOI: 10.1021/ma200034u] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Corinne E. Lipscomb
- Department of Chemistry, University of Wisconsin—Madison, 1101 University Ave., Madison, Wisconsin 53706, United States
| | - Mahesh K. Mahanthappa
- Department of Chemistry, University of Wisconsin—Madison, 1101 University Ave., Madison, Wisconsin 53706, United States
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9
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Arrese-Igor S, Alegría A, Moreno AJ, Colmenero J. Effect of Blending on the Chain Dynamics of the “Low-Tg” Component in Nonentangled and Dynamically Asymmetric Polymer Blends. Macromolecules 2011. [DOI: 10.1021/ma2000064] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S. Arrese-Igor
- Centro de Física de Materiales (CSIC-UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
| | - A. Alegría
- Centro de Física de Materiales (CSIC-UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
- Departamento de Física de Materiales UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 San Sebastián, Spain
| | - A. J. Moreno
- Centro de Física de Materiales (CSIC-UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
| | - J. Colmenero
- Centro de Física de Materiales (CSIC-UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
- Departamento de Física de Materiales UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 San Sebastián, Spain
- Materials Physics Center (MPC), and Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain
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10
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Jeddi K, Qazvini NT, Hassan Jafari S, Ali Khonakdar H, Seyfi J, Reuter U. Investigating the effect of nanolayered silicates on blend segmental dynamics and minor component relaxation behavior in poly(ethylene oxide)/poly(methyl methacrylate) miscible blends. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/polb.22168] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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11
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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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12
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Dalle-Ferrier C, Simon S, Zheng W, Badrinarayanan P, Fennell T, Frick B, Zanotti JM, Alba-Simionesco C. Consequence of excess configurational entropy on fragility: the case of a polymer-oligomer blend. PHYSICAL REVIEW LETTERS 2009; 103:185702. [PMID: 19905814 DOI: 10.1103/physrevlett.103.185702] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2009] [Indexed: 05/28/2023]
Abstract
By taking advantage of the molecular weight dependence of the glass transition of polymers and their ability to form perfectly miscible blends, we propose a way to modify the fragility of a system, from fragile to strong, keeping the same glass properties, i.e., vibrational density of states, mean-square displacement, and local structure. Both slow and fast dynamics are investigated by calorimetry and neutron scattering in an athermal polystyrene-oligomer blend, and compared to those of a pure 17-mer polystyrene considered to be a reference, of the same Tg. Whereas the blend and the pure 17-mer have the same heat capacity in the glass and in the liquid, their fragilities differ strongly. Thus, the difference in fragility is related to an extra configurational entropy created by the mixing process and acting at a scale much larger than the interchain distance, without affecting the fast dynamics and the structure of the glass.
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Affiliation(s)
- C Dalle-Ferrier
- Laboratoire de Chimie Physique, UMR 8000, Bâtiment 349, Université, Paris-Sud, 91405 Orsay, France
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13
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Zhao J, Ediger MD, Sun Y, Yu L. Two DSC Glass Transitions in Miscible Blends of Polyisoprene/Poly(4-tert-butylstyrene). Macromolecules 2009. [DOI: 10.1021/ma9008516] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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