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Winkler R, Beena Unni A, Tu W, Chat K, Adrjanowicz K. On the Segmental Dynamics and the Glass Transition Behavior of Poly(2-vinylpyridine) in One- and Two-Dimensional Nanometric Confinement. J Phys Chem B 2021; 125:5991-6003. [PMID: 34048244 PMCID: PMC8279553 DOI: 10.1021/acs.jpcb.1c01245] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 05/13/2021] [Indexed: 11/30/2022]
Abstract
Geometric nanoconfinement, in one and two dimensions, has a fundamental influence on the segmental dynamics of polymer glass-formers and can be markedly different from that observed in the bulk state. In this work, with the use of dielectric spectroscopy, we have investigated the glass transition behavior of poly(2-vinylpyridine) (P2VP) confined within alumina nanopores and prepared as a thin film supported on a silicon substrate. P2VP is known to exhibit strong, attractive interactions with confining surfaces due to the ability to form hydrogen bonds. Obtained results show no changes in the temperature evolution of the α-relaxation time in nanopores down to 20 nm size and 24 nm thin film. There is also no evidence of an out-of-equilibrium behavior observed for other glass-forming systems confined at the nanoscale. Nevertheless, in both cases, the confinement effect is seen as a substantial broadening of the α-relaxation time distribution. We discussed the results in terms of the importance of the interfacial energy between the polymer and various substrates, the sensitivity of the glass-transition temperature to density fluctuations, and the density scaling concept.
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Affiliation(s)
- Roksana Winkler
- Institute
of Physics, University of Silesia, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Silesian
Center for Education and Interdisciplinary Research (SMCEBI), 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - Aparna Beena Unni
- Institute
of Physics, University of Silesia, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Silesian
Center for Education and Interdisciplinary Research (SMCEBI), 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - Wenkang Tu
- Institute
of Physics, University of Silesia, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Silesian
Center for Education and Interdisciplinary Research (SMCEBI), 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - Katarzyna Chat
- Institute
of Physics, University of Silesia, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Silesian
Center for Education and Interdisciplinary Research (SMCEBI), 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - Karolina Adrjanowicz
- Institute
of Physics, University of Silesia, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Silesian
Center for Education and Interdisciplinary Research (SMCEBI), 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
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Tracking free volume changes in bisphenol-a based polycarbonate sheets after treatment with liquid acetone. JOURNAL OF POLYMER RESEARCH 2017. [DOI: 10.1007/s10965-017-1425-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Bendler JT, Boyles DA, Edmondson CA, Filipova T, Fontanella JJ, Westgate MA, Wintersgill MC. Dielectric Properties of Bisphenol A Polycarbonate and Its Tethered Nitrile Analogue. Macromolecules 2013. [DOI: 10.1021/ma4002269] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- John T. Bendler
- BSC, Inc., 3046 Player Drive, Rapid City,
South Dakota 57702, United States
| | - David A. Boyles
- Department of Chemistry, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, United
States
| | - Charles A. Edmondson
- Physics Department, U.S. Naval Academy, Annapolis, Maryland 21402, United
States
| | - Tsvetanka Filipova
- Department of Chemistry, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, United
States
| | - John J. Fontanella
- Physics Department, U.S. Naval Academy, Annapolis, Maryland 21402, United
States
| | - Mark A. Westgate
- Physics Department, U.S. Naval Academy, Annapolis, Maryland 21402, United
States
| | - M. C. Wintersgill
- Physics Department, U.S. Naval Academy, Annapolis, Maryland 21402, United
States
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Fontanella JJ, Boyles DA, Filipova TS, Awwad S, Edmondson CA, Bendler JT, Wintersgill MC, Lomax JF, Schroeder MJ. Dielectric studies of tetraaryl and triaryl polycarbonates and comparisons with bisphenol A-polycarbonate. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/polb.23010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Harmandaris VA, Floudas G, Kremer K. Temperature and Pressure Dependence of Polystyrene Dynamics through Molecular Dynamics Simulations and Experiments. Macromolecules 2010. [DOI: 10.1021/ma102179b] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Vagelis A. Harmandaris
- Department of Applied Mathematics, University of Crete, GR-71110 Heraklion, Greece
- IACM FORTH, GR-71110 Heraklion, Greece
- Max Planck Institute for Polymer Research, D-55128 Mainz, Germany
| | - George Floudas
- Department of Physics, University of Ioannina, GR-45110, Ioannina, Greece
- Foundation for Research and Technology-Biomedical Research Institute, Ioannina, Greece
| | - Kurt Kremer
- Max Planck Institute for Polymer Research, D-55128 Mainz, Germany
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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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Mpoukouvalas K, Floudas G, Williams G. Origin of the α, β, (βα), and “Slow” Dielectric Processes in Poly(ethyl methacrylate). Macromolecules 2009. [DOI: 10.1021/ma900644t] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- K. Mpoukouvalas
- University of Ioannina, Department of Physics, and Foundation for Research and Technology-Hellas (FORTH), Biomedical Research Institute (BRI), P.O. Box 1186, 451 10 Ioannina, Greece
| | - G. Floudas
- University of Ioannina, Department of Physics, and Foundation for Research and Technology-Hellas (FORTH), Biomedical Research Institute (BRI), P.O. Box 1186, 451 10 Ioannina, Greece
| | - G. Williams
- University of Wales Swansea, Singleton Park, Swansea SA2 8PP, U.K
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Floudas G, Spiess HW. Self-Assembly and Dynamics of Polypeptides. Macromol Rapid Commun 2009; 30:278-98. [DOI: 10.1002/marc.200800700] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2008] [Accepted: 11/26/2008] [Indexed: 11/09/2022]
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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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Mpoukouvalas K, Floudas G. Effect of Pressure on the Dynamic Heterogeneity in Miscible Blends of Poly(methyl methacrylate) with Poly(ethylene oxide). Macromolecules 2008. [DOI: 10.1021/ma702299n] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- K. Mpoukouvalas
- Department of Physics, University of Ioannina, P.O. Box 1186, 451 10 Ioannina, Greece, and Foundation for Research and Technology-Hellas (FORTH), Biomedical Research Institute (BRI)
| | - G. Floudas
- Department of Physics, University of Ioannina, P.O. Box 1186, 451 10 Ioannina, Greece, and Foundation for Research and Technology-Hellas (FORTH), Biomedical Research Institute (BRI)
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