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Shahidi N, Chazirakis A, Harmandaris V, Doxastakis M. Coarse-graining of polyisoprene melts using inverse Monte Carlo and local density potentials. J Chem Phys 2020; 152:124902. [PMID: 32241142 DOI: 10.1063/1.5143245] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Bottom-up coarse-graining of polymers is commonly performed by matching structural order parameters such as distribution of bond lengths, bending and dihedral angles, and pair distribution functions. In this study, we introduce the distribution of nearest-neighbors as an additional order parameter in the concept of local density potentials. We describe how the inverse-Monte Carlo method provides a framework for forcefield development that is capable of overcoming challenges associated with the parameterization of interaction terms in polymer systems. The technique is applied on polyisoprene melts as a prototype system. We demonstrate that while different forcefields can be developed that perform equally in terms of matching target distributions, the inclusion of nearest-neighbors provides a straightforward route to match both thermodynamic and conformational properties. We find that several temperature state points can also be addressed, provided that the forcefield is refined accordingly. Finally, we examine both the single-particle and the collective dynamics of the coarse-grain models, demonstrating that all forcefields present a similar acceleration relative to the atomistic systems.
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Affiliation(s)
- Nobahar Shahidi
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - Antonis Chazirakis
- Department of Mathematics and Applied Mathematics, University of Crete, Heraklion GR-71110, Greece
| | - Vagelis Harmandaris
- Department of Mathematics and Applied Mathematics, University of Crete, Heraklion GR-71110, Greece
| | - Manolis Doxastakis
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA
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Chrissopoulou K, Anastasiadis SH. Effects of nanoscopic-confinement on polymer dynamics. SOFT MATTER 2015; 11:3746-3766. [PMID: 25869864 DOI: 10.1039/c5sm00554j] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The static and dynamic behavior of polymers in confinement close to interfaces can be very different from that in the bulk. Among the various geometries, intercalated nanocomposites, in which polymer films of ∼1 nm thickness reside between the parallel inorganic surfaces of layered silicates in a well-ordered multilayer, offer a unique avenue for the investigation of the effects of nanoconfinement on polymer structure and dynamics by utilizing conventional analytical techniques and macroscopic specimens. In this article, we provide a review of research activities mainly in our laboratory on polymer dynamics under severe confinement utilizing different polymer systems: polar and non-polar polymers were mixed with hydrophilic or organophilic silicates, respectively, whereas hyperbranched polymers were studied in an attempt to probe the effect of polymer-surface interactions by altering the number and the kinds of functional groups in the periphery of the branched polymers. The polymer dynamics was probed by quasielastic neutron scattering and dielectric relaxation spectroscopy and was compared with that of the polymers in the bulk. In all cases, very local sub-Tg processes related to the motion of side and/or end groups as well as the segmental α-relaxation were identified with distinct differences recorded between the bulk and the confined systems. Confinement was found not to affect the very local motion in the case of the linear chains whereas it made it easier for hyperbranched polymers due to modifications of the hydrogen bond network. The segmental relaxation in confinement becomes faster than that in the bulk, exhibits Arrhenius temperature dependence and is observed even below the bulk Tg due to reduced cooperativity in the confined systems.
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Affiliation(s)
- Kiriaki Chrissopoulou
- Institute of Electronic Structure and Laser, Foundation for Research and Technology - Hellas, P. O. Box 1527, 711 10 Heraklion Crete, Greece.
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Pandey YN, Brayton A, Burkhart C, Papakonstantopoulos GJ, Doxastakis M. Multiscale modeling of polyisoprene on graphite. J Chem Phys 2014; 140:054908. [DOI: 10.1063/1.4863918] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
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Fotiadou S, Karageorgaki C, Chrissopoulou K, Karatasos K, Tanis I, Tragoudaras D, Frick B, Anastasiadis SH. Structure and Dynamics of Hyperbranched Polymer/Layered Silicate Nanocomposites. Macromolecules 2013. [DOI: 10.1021/ma302405q] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S. Fotiadou
- Institute of Electronic Structure
and Laser, Foundation for Research and Technology—Hellas, P.O. Box 1527, 711 10 Heraklion, Crete, Greece
- Department of Chemical Engineering, Aristotle University of Thessaloniki, 541 24 Thessaloniki,
Greece
| | - C. Karageorgaki
- Institute of Electronic Structure
and Laser, Foundation for Research and Technology—Hellas, P.O. Box 1527, 711 10 Heraklion, Crete, Greece
- Department of Chemical Engineering, Aristotle University of Thessaloniki, 541 24 Thessaloniki,
Greece
| | - K. Chrissopoulou
- Institute of Electronic Structure
and Laser, Foundation for Research and Technology—Hellas, P.O. Box 1527, 711 10 Heraklion, Crete, Greece
| | - K. Karatasos
- Department of Chemical Engineering, Aristotle University of Thessaloniki, 541 24 Thessaloniki,
Greece
| | - I. Tanis
- Department of Chemical Engineering, Aristotle University of Thessaloniki, 541 24 Thessaloniki,
Greece
| | - D. Tragoudaras
- Department of Chemical Engineering, Aristotle University of Thessaloniki, 541 24 Thessaloniki,
Greece
| | - B. Frick
- Institut Laue Langevin (ILL), 6 rue Jules Horowitz, F38042 Grenoble, France
| | - S. H. Anastasiadis
- Institute of Electronic Structure
and Laser, Foundation for Research and Technology—Hellas, P.O. Box 1527, 711 10 Heraklion, Crete, Greece
- Department of Chemistry, University of Crete, P.O. Box 2208, 710 03 Heraklion
Crete, Greece
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5
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Chen Q, Matsumiya Y, Masubuchi Y, Watanabe H, Inoue T. Dynamics of Polyisoprene-Poly(p-tert-butylstyrene) Diblock Copolymer in Disordered State. Macromolecules 2011. [DOI: 10.1021/ma102595f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Quan Chen
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, 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
| | - Tadashi Inoue
- Department of Macromolecular Science, Faculty of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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Watanabe H, Chen Q, Kawasaki Y, Matsumiya Y, Inoue T, Urakawa O. Entanglement Dynamics in Miscible Polyisoprene/Poly(p-tert-butylstyrene) Blends. Macromolecules 2011. [DOI: 10.1021/ma102596b] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hiroshi Watanabe
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Quan Chen
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yohji Kawasaki
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yumi Matsumiya
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Tadashi Inoue
- Department of Macromolecular Science, Faculty of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Osamu Urakawa
- Department of Macromolecular Science, Faculty of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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Fotiadou S, Chrissopoulou K, Frick B, Anastasiadis SH. Structure and dynamics of polymer chains in hydrophilic nanocomposites. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/polb.21974] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Cherdhirankorn T, Harmandaris V, Juhari A, Voudouris P, Fytas G, Kremer K, Koynov K. Fluorescence Correlation Spectroscopy Study of Molecular Probe Diffusion in Polymer Melts. Macromolecules 2009. [DOI: 10.1021/ma900605z] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - V. Harmandaris
- Max-Planck-Institute of Polymer Research, D-55128 Mainz, Germany
- Department of Applied Mathematics, University of Crete, 71110 Heraklion, Greece
| | - A. Juhari
- Max-Planck-Institute of Polymer Research, D-55128 Mainz, Germany
| | - P. Voudouris
- Departments of Chemistry and Materials Science and Technology, University of Crete and FORTH, 71110 Heraklion, Greece
| | - G. Fytas
- Max-Planck-Institute of Polymer Research, D-55128 Mainz, Germany
- Departments of Chemistry and Materials Science and Technology, University of Crete and FORTH, 71110 Heraklion, Greece
| | - K. Kremer
- Max-Planck-Institute of Polymer Research, D-55128 Mainz, Germany
| | - K. Koynov
- Max-Planck-Institute of Polymer Research, D-55128 Mainz, Germany
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Sacristan J, Chen C, Maranas JK. Role of Effective Composition on Dynamics of PEO−PMMA Blends. Macromolecules 2008. [DOI: 10.1021/ma8003373] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Javier Sacristan
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Chunxia Chen
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Janna K. Maranas
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
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Chrissopoulou K, Anastasiadis SH, Giannelis EP, Frick B. Quasielastic neutron scattering of poly(methyl phenyl siloxane) in the bulk and under severe confinement. J Chem Phys 2007; 127:144910. [DOI: 10.1063/1.2775449] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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11
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Tyagi M, Arbe A, Alegría A, Colmenero J, Frick B. Dynamic Confinement Effects in Polymer Blends. A Quasielastic Neutron Scattering Study of the Slow Component in the Blend Poly(vinyl acetate)/Poly(ethylene oxide). Macromolecules 2007. [DOI: 10.1021/ma070539i] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M. Tyagi
- Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain, Centro de Física de Materiales (CSIC−UPV/EHU), Apartado 1072, 20080 San Sebastián, Spain, Departamento de Física de Materiales UPV/EHU, Apartado 1072, 20080 San Sebastián, Spain, and Institut Laue−Langevin, BP 156, 38042 Grenoble Cedex 9, France
| | - A. Arbe
- Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain, Centro de Física de Materiales (CSIC−UPV/EHU), Apartado 1072, 20080 San Sebastián, Spain, Departamento de Física de Materiales UPV/EHU, Apartado 1072, 20080 San Sebastián, Spain, and Institut Laue−Langevin, BP 156, 38042 Grenoble Cedex 9, France
| | - A. Alegría
- Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain, Centro de Física de Materiales (CSIC−UPV/EHU), Apartado 1072, 20080 San Sebastián, Spain, Departamento de Física de Materiales UPV/EHU, Apartado 1072, 20080 San Sebastián, Spain, and Institut Laue−Langevin, BP 156, 38042 Grenoble Cedex 9, France
| | - J. Colmenero
- Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain, Centro de Física de Materiales (CSIC−UPV/EHU), Apartado 1072, 20080 San Sebastián, Spain, Departamento de Física de Materiales UPV/EHU, Apartado 1072, 20080 San Sebastián, Spain, and Institut Laue−Langevin, BP 156, 38042 Grenoble Cedex 9, France
| | - B. Frick
- Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain, Centro de Física de Materiales (CSIC−UPV/EHU), Apartado 1072, 20080 San Sebastián, Spain, Departamento de Física de Materiales UPV/EHU, Apartado 1072, 20080 San Sebastián, Spain, and Institut Laue−Langevin, BP 156, 38042 Grenoble Cedex 9, France
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Genix AC, Arbe A, Alvarez F, Colmenero J, Willner L, Richter D. Dynamics of poly(ethylene oxide) in a blend with poly(methyl methacrylate): a quasielastic neutron scattering and molecular dynamics simulations study. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2005; 72:031808. [PMID: 16241474 DOI: 10.1103/physreve.72.031808] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2005] [Revised: 06/20/2005] [Indexed: 05/05/2023]
Abstract
In this paper, we have addressed the question of the dynamic miscibility in a blend characterized by very different glass-transition temperatures, Tg, for the components: poly(ethylene oxide) and poly(methyl methacrylate) (PEO/PMMA). The combination of quasielastic neutron scattering with isotopic labeling and fully atomistic molecular dynamics simulations has allowed us to selectively investigate the dynamics of the two components in the picosecond-10 nanoseconds scale at temperatures close and above the Tg of the blend. The main focus was on the PEO component, i.e., that of the lowest Tg, but first we have characterized the dynamics of the other component in the blend and of the pure PEO homopolymer as reference. In the region investigated, the dynamics of PMMA in the blend is strongly affected by the alpha-methyl rotation; an additional process detected in the experimental window 65 K above the blend-Tg can be identified as the merged alphabeta process of this component that shows strong deviations from Gaussian behavior. On the other hand, pure PEO displays entropy driven dynamics up to very large momentum transfers. Such kind of motion seems to freeze when the PEO chains are in the blend. There, we have directly observed a very heterogeneous and moreover confined dynamics for the PEO component. The presence of the hardly moving PMMA matrix leads to the creation of little pockets of mobility where PEO can move. The characteristic size of such confined islands of mobility might be estimated to be of approximately 1 nm. These findings are corroborated by the simulation study, which has been an essential support and guide in our data analysis procedure.
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Affiliation(s)
- A-C Genix
- Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain
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He Y, Lutz TR, Ediger MD, Pitsikalis M, Hadjichristidis N, von Meerwall ED. Miscible Polyisoprene/Polystyrene Blends: Distinct Segmental Dynamics but Homogeneous Terminal Dynamics. Macromolecules 2005. [DOI: 10.1021/ma0505225] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | | | - Ernst D. von Meerwall
- Department of Physics and Maurice Morton Institute of Polymer Science, University of Akron, Akron, Ohio 44325
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Sakai VG, Chen C, Maranas JK, Chowdhuri Z. Effect of Blending with Poly(ethylene oxide) on the Dynamics of Poly(methyl methacrylate): A Quasi-Elastic Neutron Scattering Approach. Macromolecules 2004. [DOI: 10.1021/ma0497355] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Victoria García Sakai
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Chunxia Chen
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Janna K. Maranas
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Zema Chowdhuri
- NIST Center for Neutron Research, Gaithersburg, Maryland 20899, and Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742
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Hirose Y, Urakawa O, Adachi K. Dynamics in disordered block copolymers and miscible blends composed of poly(vinyl ethylene) and polyisoprene. ACTA ACUST UNITED AC 2004. [DOI: 10.1002/polb.20190] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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17
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Jaffer KM, Wickham RA, Shi AC. Noncentrosymmetric Lamellar Phase in ABCD Tetrablock Copolymers. Macromolecules 2004. [DOI: 10.1021/ma049784h] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Karim M. Jaffer
- Department of Physics and Astronomy, McMaster University, Hamilton, ON L8S 4M1, Canada, and Department of Physics, St. Francis Xavier University, Antigonish, NS B2G 2W5, Canada
| | - Robert A. Wickham
- Department of Physics and Astronomy, McMaster University, Hamilton, ON L8S 4M1, Canada, and Department of Physics, St. Francis Xavier University, Antigonish, NS B2G 2W5, Canada
| | - An-Chang Shi
- Department of Physics and Astronomy, McMaster University, Hamilton, ON L8S 4M1, Canada, and Department of Physics, St. Francis Xavier University, Antigonish, NS B2G 2W5, Canada
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Kant R, Kumar SK, Colby RH. What Length Scales Control the Dynamics of Miscible Polymer Blends? Macromolecules 2003. [DOI: 10.1021/ma0347215] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rama Kant
- Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180
| | - Sanat K. Kumar
- Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180
| | - Ralph H. Colby
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802
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He Y, Lutz TR, Ediger MD, Lodge TP. Prediction of Segmental and Global Dynamics in Disordered Styrene−Isoprene Tetrablock Copolymers. Macromolecules 2003. [DOI: 10.1021/ma0303519] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yiyong He
- Department of Chemistry, University of WisconsinMadison, Madison, Wisconsin 53706
| | - T. R. Lutz
- Department of Chemistry, University of WisconsinMadison, Madison, Wisconsin 53706
| | - M. D. Ediger
- Department of Chemistry, University of WisconsinMadison, Madison, Wisconsin 53706
| | - Timothy P. Lodge
- Department of Chemistry and Department of Chemical Engineering & Materials Science, University of Minnesota, Minneapolis, Minnesota 55455-0431
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Doxastakis M, Theodorou DN, Fytas G, Kremer F, Faller R, Müller-Plathe F, Hadjichristidis N. Chain and local dynamics of polyisoprene as probed by experiments and computer simulations. J Chem Phys 2003. [DOI: 10.1063/1.1603720] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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He Y, Lutz TR, Ediger MD. NMR Investigation of Segmental Dynamics in Disordered Styrene−Isoprene Tetrablock Copolymers. Macromolecules 2003. [DOI: 10.1021/ma030350g] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yiyong He
- Department of Chemistry, University of WisconsinMadison, Madison, Wisconsin 53706
| | - T. R. Lutz
- Department of Chemistry, University of WisconsinMadison, Madison, Wisconsin 53706
| | - M. D. Ediger
- Department of Chemistry, University of WisconsinMadison, Madison, Wisconsin 53706
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