1
|
Schmid F. Understanding and Modeling Polymers: The Challenge of Multiple Scales. ACS POLYMERS AU 2022. [DOI: 10.1021/acspolymersau.2c00049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Friederike Schmid
- Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudingerweg 9, 55128Mainz, Germany
| |
Collapse
|
2
|
Weldeghiorghis T, Singh M, Schaefer J. Molecular basis of secondary relaxation in stiff-chain glassy polymers. J Chem Phys 2022; 157:044901. [PMID: 35922345 DOI: 10.1063/5.0087132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Recent progress in establishing local order in polycarbonate-like glasses using rotational echo double resonance and centerband-only detection of exchange solid-state nuclear magnetic resonance (NMR) has stimulated a renewed attempt to connect molecular motion within glassy polymers and the mechanical properties of the glass. We have in fact established a correlation between molecular motion characterized by NMR and the mechanical secondary relaxation (tan δ) for nine polycarbonate-like glasses. All of the NMR and mechanical data are for T ≪ Tg. The resulting structural insights suggest that the chains of these polymers are simultaneously both Flory random coils and Vol'kenstein bundles. The cooperative motions of groups of bundles can be described qualitatively by a variety of constrained-kinetics models of the glass. All of the models share a common trait for large-amplitude motion: an exponential increase in the time required for an inter-bundle dilation event with a linear increase in bundle group size. This dependence and a locally ordered Vol'kenstein bundle lead to an understanding of the surprising 60° (K) shift of tan δ to higher temperature for ring-fluoro-polycarbonate relative to that of polycarbonate by the apparently minor substitution of a fluorine for a hydrogen on every fourth ring.
Collapse
Affiliation(s)
| | - Manmilan Singh
- Department of Chemistry, Washington University, St. Louis, Missouri 63130, USA
| | - Jacob Schaefer
- Department of Chemistry, Washington University, St. Louis, Missouri 63130, USA
| |
Collapse
|
3
|
Arbe A, Alvarez F, Colmenero J. Insight into the Structure and Dynamics of Polymers by Neutron Scattering Combined with Atomistic Molecular Dynamics Simulations. Polymers (Basel) 2020; 12:E3067. [PMID: 33371357 PMCID: PMC7767341 DOI: 10.3390/polym12123067] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/04/2020] [Accepted: 12/11/2020] [Indexed: 11/23/2022] Open
Abstract
Combining neutron scattering and fully atomistic molecular dynamics simulations allows unraveling structural and dynamical features of polymer melts at different length scales, mainly in the intermolecular and monomeric range. Here we present the methodology developed by us and the results of its application during the last years in a variety of polymers. This methodology is based on two pillars: (i) both techniques cover approximately the same length and time scales and (ii) the classical van Hove formalism allows easily calculating the magnitudes measured by neutron scattering from the simulated atomic trajectories. By direct comparison with experimental results, the simulated cell is validated. Thereafter, the information of the simulations can be exploited, calculating magnitudes that are experimentally inaccessible or extending the parameters range beyond the experimental capabilities. We show how detailed microscopic insight on structural features and dynamical processes of various kinds has been gained in polymeric systems with different degrees of complexity, and how intriguing questions as the collective behavior at intermediate length scales have been faced.
Collapse
Affiliation(s)
- Arantxa Arbe
- Centro de Física de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain; (A.A.); (F.A.)
| | - Fernando Alvarez
- Centro de Física de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain; (A.A.); (F.A.)
- Departamento de Polímeros y Materiales Avanzados, Física, Química y Tecnología (UPV/EHU), Apartado 1072, E-20080 San Sebastián, Spain
| | - Juan Colmenero
- Centro de Física de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain; (A.A.); (F.A.)
- Departamento de Polímeros y Materiales Avanzados, Física, Química y Tecnología (UPV/EHU), Apartado 1072, E-20080 San Sebastián, Spain
- Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, E-20018 San Sebastián, Spain
| |
Collapse
|
4
|
Pal T, Vogel M. Role of Dynamic Heterogeneities in Ionic Liquids: Insights from All-Atom and Coarse-Grained Molecular Dynamics Simulation Studies. Chemphyschem 2017. [DOI: 10.1002/cphc.201700504] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tamisra Pal
- Institut für Festkörperphysik; Technische Universität Darmstadt; Hochschulstraße 6 64289 Darmstadt Germany
| | - Michael Vogel
- Institut für Festkörperphysik; Technische Universität Darmstadt; Hochschulstraße 6 64289 Darmstadt Germany
| |
Collapse
|
5
|
Zhang G, Stillinger FH, Torquato S. The Perfect Glass Paradigm: Disordered Hyperuniform Glasses Down to Absolute Zero. Sci Rep 2016; 6:36963. [PMID: 27892452 PMCID: PMC5125002 DOI: 10.1038/srep36963] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 10/24/2016] [Indexed: 01/06/2023] Open
Abstract
Rapid cooling of liquids below a certain temperature range can result in a transition to glassy states. The traditional understanding of glasses includes their thermodynamic metastability with respect to crystals. However, here we present specific examples of interactions that eliminate the possibilities of crystalline and quasicrystalline phases, while creating mechanically stable amorphous glasses down to absolute zero temperature. We show that this can be accomplished by introducing a new ideal state of matter called a "perfect glass". A perfect glass represents a soft-interaction analog of the maximally random jammed (MRJ) packings of hard particles. These latter states can be regarded as the epitome of a glass since they are out of equilibrium, maximally disordered, hyperuniform, mechanically rigid with infinite bulk and shear moduli, and can never crystallize due to configuration-space trapping. Our model perfect glass utilizes two-, three-, and four-body soft interactions while simultaneously retaining the salient attributes of the MRJ state. These models constitute a theoretical proof of concept for perfect glasses and broaden our fundamental understanding of glass physics. A novel feature of equilibrium systems of identical particles interacting with the perfect-glass potential at positive temperature is that they have a non-relativistic speed of sound that is infinite.
Collapse
Affiliation(s)
- G. Zhang
- Department of Chemistry, Princeton University, Princeton, 08540, USA
| | - F. H. Stillinger
- Department of Chemistry, Princeton University, Princeton, 08540, USA
| | - S. Torquato
- Department of Chemistry, Department of Physics, Princeton Institute for the Science and Technology of Materials, and Program in Applied and Computational Mathematics, Princeton University, Princeton, 08540, USA
| |
Collapse
|
6
|
Measurement of multi-scale deformation of polycarbonate using X-ray scattering with in-situ loading and digital image correlation. POLYMER 2016. [DOI: 10.1016/j.polymer.2015.11.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
7
|
Bereau T, Kremer K. Automated parametrization of the coarse-grained Martini force field for small organic molecules. J Chem Theory Comput 2015; 11:2783-91. [PMID: 26575571 DOI: 10.1021/acs.jctc.5b00056] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The systematic exploration of chemical compound space holds many promises toward structure-function relationships and material design. In the context of computer simulations, progress is hampered by both the sheer number of compounds and the efforts associated with parametrizing a force field for every new molecule. A coarse-grained (CG) representation provides not only a reduced phase space but also a smaller number of compounds, due to the redundancy of CG representations mapping to the same structure. Though many CG models require the explicit force-field parametrization of a molecule with all others, others assume transferability by means of mixing rules, such as the Martini force field. To alleviate the burden associated with tedious parametrizations for each new compound, the present work aims at automating the mapping and parametrization of common small organic molecules for Martini. We test the method by analyzing the water/octanol partitioning of more than 650 neutral molecules, the hydration free energy of 354 others, and the free energies of hydration and solvation in octanol of another 69 compounds. Last, we compare with all-atom simulations the thermodynamics of insertion of four individual solute molecules in a phospholipid membrane. The protocol demonstrates the feasibility of an automated parametrization scheme for Martini and provides prospects for high-throughput simulation methodologies.
Collapse
Affiliation(s)
- Tristan Bereau
- Max Planck Institute for Polymer Research , Ackermannweg 10, 55128 Mainz, Germany
| | - Kurt Kremer
- Max Planck Institute for Polymer Research , Ackermannweg 10, 55128 Mainz, Germany
| |
Collapse
|
8
|
Chakraborty S, Choudhury CK, Roy S. Morphology and Dynamics of Carbon Nanotube in Polycarbonate Carbon Nanotube Composite from Dissipative Particle Dynamics Simulation. Macromolecules 2013. [DOI: 10.1021/ma302425s] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Souvik Chakraborty
- Physical Chemistry Division, National Chemical Laboratory, Pune 411008, India
| | | | - Sudip Roy
- Physical Chemistry Division, National Chemical Laboratory, Pune 411008, India
| |
Collapse
|
9
|
|
10
|
Busselez R, Arbe A, Cerveny S, Capponi S, Colmenero J, Frick B. Component dynamics in polyvinylpyrrolidone concentrated aqueous solutions. J Chem Phys 2012; 137:084902. [DOI: 10.1063/1.4746020] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
11
|
Gerstl C, Brodeck M, Schneider GJ, Su Y, Allgaier J, Arbe A, Colmenero J, Richter D. Short and Intermediate Range Order in Poly(alkylene oxide)s. A Neutron Diffraction and Molecular Dynamics Simulation Study. Macromolecules 2012. [DOI: 10.1021/ma301197y] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- C. Gerstl
- Jülich Center for Neutron
Science and Institut for Complex Systems, Forschungszentrum Jülich GmbH, D−52425 Jülich, Germany
- Jülich Center for Neutron Science, Outstation at FRM II, 85747 Garching,
Germany
| | - M. Brodeck
- Jülich Center for Neutron
Science and Institut for Complex Systems, Forschungszentrum Jülich GmbH, D−52425 Jülich, Germany
| | - G. J. Schneider
- Jülich Center for Neutron Science, Outstation at FRM II, 85747 Garching,
Germany
| | - Y. Su
- Jülich Center for Neutron Science, Outstation at FRM II, 85747 Garching,
Germany
| | - J. Allgaier
- Jülich Center for Neutron
Science and Institut for Complex Systems, Forschungszentrum Jülich GmbH, D−52425 Jülich, Germany
| | - A. Arbe
- Centro de Física de Materiales (CSIC-UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain
| | - J. Colmenero
- Centro de Física de Materiales (CSIC-UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain
- Departamento de Física de Materiales (UPV/EHU), Apartado 1072,
20080 San Sebastián, Spain
- Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018
San Sebastián, Spain
| | - D. Richter
- Jülich Center for Neutron
Science and Institut for Complex Systems, Forschungszentrum Jülich GmbH, D−52425 Jülich, Germany
- Jülich Center for Neutron Science, Outstation at FRM II, 85747 Garching,
Germany
| |
Collapse
|
12
|
Chakraborty S, Roy S. Structural, Dynamical, and Thermodynamical Properties of Carbon Nanotube Polycarbonate Composites: A Molecular Dynamics Study. J Phys Chem B 2012; 116:3083-91. [DOI: 10.1021/jp212220m] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Souvik Chakraborty
- Physical Chemistry Division, National Chemical Laboratory, Pune 411008, India
| | - Sudip Roy
- Physical Chemistry Division, National Chemical Laboratory, Pune 411008, India
| |
Collapse
|
13
|
Sulatha MS, Natarajan U. Effect of chemical substituents on the structure of glassy diphenyl polycarbonates. J Phys Chem B 2011; 115:1579-89. [PMID: 21275412 DOI: 10.1021/jp105954z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Polycarbonates offer a wide variety of physical property behavior that is difficult to predict due to complexities at the molecular scale. Here, the physical structure of amorphous glassy polycarbonates having aliphatic and cycloaliphatic chemical groups is explored through atomistic simulations. The influence of chemical structure on solubility parameter, torsion distributions, radial distribution function, scattering structure factor, orientation distributions of phenylene rings and carbonate groups, and free volume distributions, leading to interchain packing effects, are shown. The effect of the cyclohexyl ring at the isopropylidene carbon as compared to the effect of the methyl groups positioned on the phenylene rings results in a larger reduction in the solubility parameter (δ). The interchain distance estimated for polycarbonates in this work is in the range of 5-5.8 Å. The o-methyl groups on the phenylene rings, as compared to a cyclohexyl ring, lead to higher interchain distances. The highest interchain distance is observed with a trimethylcyclohexylidene group at the isopropylidene carbon. Atomistic simulations reveal two different types of packing arrangement of nearest-neighbor chains in the glassy state, one type of which agrees with the NMR experimental data. The fundamental insights provided here can be utilized for design of chemical structures for tailored macroscopic properties.
Collapse
Affiliation(s)
- M S Sulatha
- Macromolecular Modeling and Simulation Laboratory, Polymer Chemistry Division, National Chemical Laboratory (NCL), Pune 411 008, India
| | | |
Collapse
|
14
|
Stueber D, Yu TY, Hess B, Kremer K, O'Connor RD, Schaefer J. Chain packing in polycarbonate glasses. J Chem Phys 2010; 132:104901. [PMID: 20232984 DOI: 10.1063/1.3330412] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Chain packing in homogeneous blends of carbonate (13)C-labeled bisphenol A polycarbonate with either (i) CF(3)-labeled bisphenol A polycarbonate or (ii) ring-F-labeled bisphenol A polycarbonate has been characterized using (13)C{(19)F} rotational-echo double-resonance (REDOR) nuclear magnetic resonance. In both blends, the (13)C observed spin was at high concentration, and the (19)F dephasing or probe spin was at low concentration. In this situation, an analysis in terms of a distribution of isolated heteronuclear pairs of spins is valid. Nearest-neighbor separation of (13)C and (19)F labels was determined by accurately mapping the initial dipolar evolution using a shifted-pulse version of REDOR. Based on the results of this experiment, the average distance from a ring-fluorine to the nearest (13)C=O is more than 1.2 A greater than the corresponding CF(3)-(13)C=O distance. Next-nearest and more-distant-neighbor separations of labels were measured in a 416-rotor-cycle constant-time version of REDOR for both blends. Statistically significant local order was established for the nearest-neighbor labels in the methyl-labeled blend. These interchain packing results are in qualitative agreement with predictions based on coarse-grained simulations of a specially adapted model for bisphenol A polycarbonate. The model itself has been previously used to determine static and dynamic properties of polycarbonate with results in good agreement with those from rheological and neutron scattering experiments.
Collapse
Affiliation(s)
- Dirk Stueber
- Department of Chemistry, Washington University, St. Louis, Missouri 63130, USA
| | | | | | | | | | | |
Collapse
|
15
|
Brodeck M, Alvarez F, Arbe A, Juranyi F, Unruh T, Holderer O, Colmenero J, Richter D. Study of the dynamics of poly(ethylene oxide) by combining molecular dynamic simulations and neutron scattering experiments. J Chem Phys 2009; 130:094908. [DOI: 10.1063/1.3077858] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
16
|
Tyagi M, Arbe A, Alvarez F, Colmenero J, González MA. Short-range order and collective dynamics of poly(vinyl acetate): A combined study by neutron scattering and molecular dynamics simulations. J Chem Phys 2008; 129:224903. [DOI: 10.1063/1.3028210] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
17
|
Arrese-Igor S, Mitxelena O, Arbe A, Alegría A, Colmenero J, Frick B. Effect of stretching on the sub-Tg phenylene-ring dynamics of polycarbonate by neutron scattering. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2008; 78:021801. [PMID: 18850857 DOI: 10.1103/physreve.78.021801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 04/08/2008] [Indexed: 05/26/2023]
Abstract
We have investigated the effect of cold drawing on the motion of phenylene rings in bisphenol-A polycarbonate by neutron scattering. The intensity scattered by isotropic and stretched polycarbonate is different, the quasielastic broadening being larger for the isotropic sample. This difference can be well accounted for by considering that preferentially oriented rings in the stretched polymer have their motion sterically hindered. The extent of the effect of stretching on the phenylene-ring motion obtained from this neutron-scattering investigation is in good agreement with that obtained when studying the effect of cold drawing on the gamma relaxation by dielectric spectroscopy.
Collapse
Affiliation(s)
- Silvia Arrese-Igor
- Centro de Física de Materiales (CSIC-UPV/EHU), Apartado 1072, 20080 San Sebastián, Spain
| | | | | | | | | | | |
Collapse
|
18
|
Praprotnik M, Site LD, Kremer K. Multiscale Simulation of Soft Matter: From Scale Bridging to Adaptive Resolution. Annu Rev Phys Chem 2008; 59:545-71. [DOI: 10.1146/annurev.physchem.59.032607.093707] [Citation(s) in RCA: 377] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Matej Praprotnik
- Max-Planck-Institut für Polymerforschung, D-55128 Mainz, Germany; , ,
| | - Luigi Delle Site
- Max-Planck-Institut für Polymerforschung, D-55128 Mainz, Germany; , ,
| | - Kurt Kremer
- Max-Planck-Institut für Polymerforschung, D-55128 Mainz, Germany; , ,
| |
Collapse
|
19
|
Neyertz S, Brown D. Molecular Dynamics Simulations of Oxygen Transport through a Fully Atomistic Polyimide Membrane. Macromolecules 2008. [DOI: 10.1021/ma7026676] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sylvie Neyertz
- LMOPS-UMR CNRS 5041, University of Savoie, Bât IUT, 73376 Le Bourget du Lac Cedex, France
| | - David Brown
- LMOPS-UMR CNRS 5041, University of Savoie, Bât IUT, 73376 Le Bourget du Lac Cedex, France
| |
Collapse
|
20
|
Chan ER, Striolo A, McCabe C, Cummings PT, Glotzer SC. Coarse-grained force field for simulating polymer-tethered silsesquioxane self-assembly in solution. J Chem Phys 2007; 127:114102. [PMID: 17887823 DOI: 10.1063/1.2753493] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A coarse-grained model has been developed for simulating the self-assembly of nonyl-tethered polyhedral oligomeric silsesquioxane (POSS) nanoparticles in solution. A mapping scheme for groups of atoms in the atomistic molecule onto beads in the coarse-grained model was established. The coarse-grained force field consists of solvent-mediated effective interaction potentials that were derived via a structural-based coarse-graining numerical iteration scheme. The force field was obtained from initial guesses that were refined through two different iteration algorithms. The coarse-graining scheme was validated by comparing the aggregation of POSS molecules observed in simulations of the coarse-grained model to that observed in all-atom simulations containing explicit solvent. At 300 K the effective coarse-grained potentials obtained from different initial guesses are comparable to each other. At 400 K the differences between the force fields obtained from different initial guesses, although small, are noticeable. The use of a different iteration algorithm employing identical initial guesses resulted in the same overall effective potentials for bare cube corner bead sites. In both the coarse-grained and all-atom simulations, small aggregates of POSS molecules were observed with similar local packings of the silsesquioxane cages and tether conformations. The coarse-grained model afforded a savings in computing time of roughly two orders of magnitude. Further comparisons were made between the coarse-grained monotethered POSS model developed here and a minimal model developed in earlier work. The results suggest that the interactions between POSS cages are long ranged and are captured by the coarse-grained model developed here. The minimal model is suitable for capturing the local intermolecular packing of POSS cubes at short separation distances.
Collapse
Affiliation(s)
- Elaine R Chan
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136, USA.
| | | | | | | | | |
Collapse
|
21
|
Mpoukouvalas K, Gomopoulos N, Floudas G, Herrmann C, Hanewald A, Best A. Effect of pressure on the segmental dynamics of bisphenol-A-polycarbonate. POLYMER 2006. [DOI: 10.1016/j.polymer.2006.05.068] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
22
|
Genix AC, Arbe A, Alvarez F, Colmenero J, Schweika W, Richter D. Local Structure of Syndiotactic Poly(methyl methacrylate). A Combined Study by Neutron Diffraction with Polarization Analysis and Atomistic Molecular Dynamics Simulations. Macromolecules 2006. [DOI: 10.1021/ma060370t] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A.-C. Genix
- Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain; Unidad 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 für Festkörperforschung, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
| | - A. Arbe
- Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain; Unidad 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 für Festkörperforschung, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
| | - F. Alvarez
- Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain; Unidad 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 für Festkörperforschung, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
| | - J. Colmenero
- Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain; Unidad 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 für Festkörperforschung, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
| | - W. Schweika
- Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain; Unidad 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 für Festkörperforschung, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
| | - D. Richter
- Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain; Unidad 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 für Festkörperforschung, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
| |
Collapse
|
23
|
Hess B, León S, van der Vegt N, Kremer K. Long time atomistic polymer trajectories from coarse grained simulations: bisphenol-A polycarbonate. SOFT MATTER 2006; 2:409-414. [PMID: 32680255 DOI: 10.1039/b602076c] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Based on coarse grained simulations of a specially adapted model for bisphenol-A polycarbonate (BPA-PC) we generate by inverse mapping, the reintroduction of chemical details, well equilibrated all-atom conformations and time trajectories of dense polymeric melts for up to 7.8 µs. This is several orders of magnitude more than any direct all-atom simulations have reached so far. These polymer melts contain up to 68600 atoms in = 100 chains of molecular weight = 5217. By comparison with short all-atom simulations we show that these trajectories are physically meaningful, providing us with a powerful tool to compare long time simulations to experiments, which probe specific local dynamics on long time scales, such as NMR relaxation.
Collapse
Affiliation(s)
- Berk Hess
- Max-Planck-Institute for Polymer Research, P.O. Box 3148, D-55021, Mainz, Germany.
| | - Salvador León
- Max-Planck-Institute for Polymer Research, P.O. Box 3148, D-55021, Mainz, Germany. and Universidad Politécnica de Madrid, Departmento de Ingeniería Química, José Gutiérrez Abascal 2, E-28006, Madrid, Spain
| | - Nico van der Vegt
- Max-Planck-Institute for Polymer Research, P.O. Box 3148, D-55021, Mainz, Germany.
| | - Kurt Kremer
- Max-Planck-Institute for Polymer Research, P.O. Box 3148, D-55021, Mainz, Germany.
| |
Collapse
|
24
|
Alegría A, Mitxelena O, Colmenero J. On the Molecular Motions Originating from the Dielectric γ-Relaxation of Bisphenol-A Polycarbonate. Macromolecules 2006. [DOI: 10.1021/ma0520545] [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)
- Angel Alegría
- Departamento de Física de Materiales UPV/EHU and Unidad de Física de Materiales CSIC−UPV/EHU, Facultad de Química, Apartado 1072, 20080 San Sebastián, Spain, and Fundación Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain
| | - Olatz Mitxelena
- Departamento de Física de Materiales UPV/EHU and Unidad de Física de Materiales CSIC−UPV/EHU, Facultad de Química, Apartado 1072, 20080 San Sebastián, Spain, and Fundación Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain
| | - Juan Colmenero
- Departamento de Física de Materiales UPV/EHU and Unidad de Física de Materiales CSIC−UPV/EHU, Facultad de Química, Apartado 1072, 20080 San Sebastián, Spain, and Fundación Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain
| |
Collapse
|
25
|
Ghosh J, Wong BY, Sun Q, Pon FR, Faller R. Simulations of glasses: multiscale modeling and density of states Monte-Carlo simulations. MOLECULAR SIMULATION 2006. [DOI: 10.1080/08927020600592985] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
26
|
Floudas G, Mpoukouvalas K, Papadopoulos P. The role of temperature and density on the glass-transition dynamics of glass formers. J Chem Phys 2006; 124:74905. [PMID: 16497080 DOI: 10.1063/1.2170074] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A correlation between the monomeric volume and the dynamic quantity E*(V)/H*, used to provide a quantitative measure of the role of temperature and density on the dynamics, is demonstrated for a series of polymers and glass-forming liquids. We show that monomeric volume and local packing play a key role in controlling the value of this ratio and thus the dynamics associated with the glass temperature.
Collapse
Affiliation(s)
- G Floudas
- Department of Physics, University of Ioannina, Greece.
| | | | | |
Collapse
|
27
|
Sun Q, Faller R. Crossover from Unentangled to Entangled Dynamics in a Systematically Coarse-Grained Polystyrene Melt. Macromolecules 2005. [DOI: 10.1021/ma0514774] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Qi Sun
- Department of Chemical & Materials Science, University of California Davis, Davis, California 95616
| | - Roland Faller
- Department of Chemical & Materials Science, University of California Davis, Davis, California 95616
| |
Collapse
|
28
|
Narros A, Arbe A, Alvarez F, Colmenero J, Zorn R, Schweika W, Richter D. Partial Structure Factors in 1,4-Polybutadiene. A Combined Neutron Scattering and Molecular Dynamics Simulations Study. Macromolecules 2005. [DOI: 10.1021/ma051466a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A. Narros
- Departamento de Física de Materiales, UPV/EHU, Apartado 1072, 20080 San Sebastián, Spain; Unidad Física de Materiales (CSIC−UPV/EHU), Apartado 1072, 20080 San Sebastian, Spain; Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastian, Spain; and Institut für Festkörperforschung, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
| | - A. Arbe
- Departamento de Física de Materiales, UPV/EHU, Apartado 1072, 20080 San Sebastián, Spain; Unidad Física de Materiales (CSIC−UPV/EHU), Apartado 1072, 20080 San Sebastian, Spain; Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastian, Spain; and Institut für Festkörperforschung, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
| | - F. Alvarez
- Departamento de Física de Materiales, UPV/EHU, Apartado 1072, 20080 San Sebastián, Spain; Unidad Física de Materiales (CSIC−UPV/EHU), Apartado 1072, 20080 San Sebastian, Spain; Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastian, Spain; and Institut für Festkörperforschung, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
| | - J. Colmenero
- Departamento de Física de Materiales, UPV/EHU, Apartado 1072, 20080 San Sebastián, Spain; Unidad Física de Materiales (CSIC−UPV/EHU), Apartado 1072, 20080 San Sebastian, Spain; Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastian, Spain; and Institut für Festkörperforschung, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
| | - R. Zorn
- Departamento de Física de Materiales, UPV/EHU, Apartado 1072, 20080 San Sebastián, Spain; Unidad Física de Materiales (CSIC−UPV/EHU), Apartado 1072, 20080 San Sebastian, Spain; Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastian, Spain; and Institut für Festkörperforschung, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
| | - W. Schweika
- Departamento de Física de Materiales, UPV/EHU, Apartado 1072, 20080 San Sebastián, Spain; Unidad Física de Materiales (CSIC−UPV/EHU), Apartado 1072, 20080 San Sebastian, Spain; Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastian, Spain; and Institut für Festkörperforschung, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
| | - D. Richter
- Departamento de Física de Materiales, UPV/EHU, Apartado 1072, 20080 San Sebastián, Spain; Unidad Física de Materiales (CSIC−UPV/EHU), Apartado 1072, 20080 San Sebastian, Spain; Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastian, Spain; and Institut für Festkörperforschung, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
| |
Collapse
|
29
|
León S, van der Vegt N, Delle Site L, Kremer K. Bisphenol A Polycarbonate: Entanglement Analysis from Coarse-Grained MD Simulations. Macromolecules 2005. [DOI: 10.1021/ma050943m] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S. León
- Max-Planck-Institute for Polymer Research, P.O. Box 3148, D-55021 Mainz, Germany, and Departamento de Ingeniería Química, Universidad Politécnica de Madrid, José Gutiérrez Abascal 2, E-28006 Madrid, Spain
| | - N. van der Vegt
- Max-Planck-Institute for Polymer Research, P.O. Box 3148, D-55021 Mainz, Germany, and Departamento de Ingeniería Química, Universidad Politécnica de Madrid, José Gutiérrez Abascal 2, E-28006 Madrid, Spain
| | - L. Delle Site
- Max-Planck-Institute for Polymer Research, P.O. Box 3148, D-55021 Mainz, Germany, and Departamento de Ingeniería Química, Universidad Politécnica de Madrid, José Gutiérrez Abascal 2, E-28006 Madrid, Spain
| | - K. Kremer
- Max-Planck-Institute for Polymer Research, P.O. Box 3148, D-55021 Mainz, Germany, and Departamento de Ingeniería Química, Universidad Politécnica de Madrid, José Gutiérrez Abascal 2, E-28006 Madrid, Spain
| |
Collapse
|
30
|
|
31
|
|
32
|
Frick B, Alba-Simionesco C, Andersen KH, Willner L. Influence of density and temperature on the microscopic structure and the segmental relaxation of polybutadiene. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2003; 67:051801. [PMID: 12786169 DOI: 10.1103/physreve.67.051801] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2002] [Indexed: 05/24/2023]
Abstract
We investigate the influence of temperature and density on the local structure and the dynamics of polybutadiene by controlling both hydrostatic pressure and temperature in polarized neutron diffraction experiments on deuterated polybutadiene and in inelastic incoherent scattering experiments on protonated polybutadiene. We observe that the static structure factor S(Q) does not change along macroscopic isochores. This behavior is contrary to the relaxations observed on the nanosecond and picosecond time scales and viewed by the dynamic incoherent scattering law S(Q,omega), which differ strongly along the same thermodynamic path. We conclude that the static behavior, i.e., S(Q), is dominated by macroscopic density changes, similar to the vibrational excitations in the meV range. However, the relaxation dynamics is more sensitive to thermal energy changes. This is confirmed by the finding that lines of identical relaxation behavior (in time, shape, and Q dependence), isochrones on the 10(-9) sec time scale, clearly cross the constant density lines in the (P,T) plane. Concerning S(Q), we can reasonably relate the variation of the main-peak position to the average neighbor chain distance and deduce crude microscopic thermal expansion and compressibility coefficients. In the low-Q regime, the observed pressure and temperature variation of S(Q) exceeds the compressibility contribution and suggests the existence of additional scattering, which might originate from structural correlations arising at higher temperature and low pressure.
Collapse
Affiliation(s)
- B Frick
- Institut Laue-Langevin, 6, rue Horowitz, F-38042 Grenoble, France
| | | | | | | |
Collapse
|
33
|
Abrams CF, Kremer K. Combined Coarse-Grained and Atomistic Simulation of Liquid Bisphenol A−Polycarbonate: Liquid Packing and Intramolecular Structure. Macromolecules 2002. [DOI: 10.1021/ma0213495] [Citation(s) in RCA: 96] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Cameron F. Abrams
- Max-Planck-Institut für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany
| | - Kurt Kremer
- Max-Planck-Institut für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany
| |
Collapse
|
34
|
Alvarez F, Colmenero J, Zorn R, Willner L, Richter D. Partial Structure Factors of Polyisoprene: Neutron Scattering and Molecular Dynamics Simulation. Macromolecules 2002. [DOI: 10.1021/ma021397p] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- F. Alvarez
- Departamento de Física de Materiales, Universidad del País Vasco (UPV/EHU) y Unidad de Física de Materiales (CSIC−UPV/EHU), Apartado 1072, 20080 San Sebastián, Spain, Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain, and Institut für Festkörperforschung, Forschungszentrum Jülich, D-52425, Jülich, Germany
| | - J. Colmenero
- Departamento de Física de Materiales, Universidad del País Vasco (UPV/EHU) y Unidad de Física de Materiales (CSIC−UPV/EHU), Apartado 1072, 20080 San Sebastián, Spain, Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain, and Institut für Festkörperforschung, Forschungszentrum Jülich, D-52425, Jülich, Germany
| | - R. Zorn
- Departamento de Física de Materiales, Universidad del País Vasco (UPV/EHU) y Unidad de Física de Materiales (CSIC−UPV/EHU), Apartado 1072, 20080 San Sebastián, Spain, Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain, and Institut für Festkörperforschung, Forschungszentrum Jülich, D-52425, Jülich, Germany
| | - L. Willner
- Departamento de Física de Materiales, Universidad del País Vasco (UPV/EHU) y Unidad de Física de Materiales (CSIC−UPV/EHU), Apartado 1072, 20080 San Sebastián, Spain, Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain, and Institut für Festkörperforschung, Forschungszentrum Jülich, D-52425, Jülich, Germany
| | - D. Richter
- Departamento de Física de Materiales, Universidad del País Vasco (UPV/EHU) y Unidad de Física de Materiales (CSIC−UPV/EHU), Apartado 1072, 20080 San Sebastián, Spain, Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain, and Institut für Festkörperforschung, Forschungszentrum Jülich, D-52425, Jülich, Germany
| |
Collapse
|
35
|
|
36
|
Reith D, Müller B, Müller-Plathe F, Wiegand S. How does the chain extension of poly (acrylic acid) scale in aqueous solution? A combined study with light scattering and computer simulation. J Chem Phys 2002. [DOI: 10.1063/1.1471901] [Citation(s) in RCA: 101] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
37
|
Abrams CF, Kremer K. Effects of excluded volume and bond length on the dynamics of dense bead-spring polymer melts. J Chem Phys 2002. [DOI: 10.1063/1.1445107] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
38
|
|
39
|
Abrams CF, Kremer K. The effect of bond length on the structure of dense bead–spring polymer melts. J Chem Phys 2001. [DOI: 10.1063/1.1385791] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
40
|
Soles CL, Dimeo RM, Neumann DA, Kisliuk A, Sokolov AP, Liu J, Yee AF, Wu WL. Correlations of the Boson Peak with Positron Annihilation in Series of Polycarbonate Copolymers. Macromolecules 2001. [DOI: 10.1021/ma001913g] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Christopher L. Soles
- Polymers Division, NIST, Gaithersburg, Maryland 20899-8541; Center for Neutron Research, NIST, Gaithersburg, Maryland 20899-8652; Department of Polymer Science, University of Akron, Akron, Ohio 44325-5309; and Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136
| | - Robert M. Dimeo
- Polymers Division, NIST, Gaithersburg, Maryland 20899-8541; Center for Neutron Research, NIST, Gaithersburg, Maryland 20899-8652; Department of Polymer Science, University of Akron, Akron, Ohio 44325-5309; and Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136
| | - Dan A. Neumann
- Polymers Division, NIST, Gaithersburg, Maryland 20899-8541; Center for Neutron Research, NIST, Gaithersburg, Maryland 20899-8652; Department of Polymer Science, University of Akron, Akron, Ohio 44325-5309; and Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136
| | - Alexander Kisliuk
- Polymers Division, NIST, Gaithersburg, Maryland 20899-8541; Center for Neutron Research, NIST, Gaithersburg, Maryland 20899-8652; Department of Polymer Science, University of Akron, Akron, Ohio 44325-5309; and Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136
| | - Alexei P. Sokolov
- Polymers Division, NIST, Gaithersburg, Maryland 20899-8541; Center for Neutron Research, NIST, Gaithersburg, Maryland 20899-8652; Department of Polymer Science, University of Akron, Akron, Ohio 44325-5309; and Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136
| | - Jianwei Liu
- Polymers Division, NIST, Gaithersburg, Maryland 20899-8541; Center for Neutron Research, NIST, Gaithersburg, Maryland 20899-8652; Department of Polymer Science, University of Akron, Akron, Ohio 44325-5309; and Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136
| | - Albert F. Yee
- Polymers Division, NIST, Gaithersburg, Maryland 20899-8541; Center for Neutron Research, NIST, Gaithersburg, Maryland 20899-8652; Department of Polymer Science, University of Akron, Akron, Ohio 44325-5309; and Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136
| | - Wen-li Wu
- Polymers Division, NIST, Gaithersburg, Maryland 20899-8541; Center for Neutron Research, NIST, Gaithersburg, Maryland 20899-8652; Department of Polymer Science, University of Akron, Akron, Ohio 44325-5309; and Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136
| |
Collapse
|
41
|
Reith D, Meyer H, Müller-Plathe F. Mapping Atomistic to Coarse-Grained Polymer Models Using Automatic Simplex Optimization To Fit Structural Properties. Macromolecules 2001. [DOI: 10.1021/ma001499k] [Citation(s) in RCA: 183] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dirk Reith
- Max-Planck-Institut für Polymerforschung, D-55128 Mainz, Germany; and CNRS, Institut Charles Sadron, 6, rue Boussingault, F-67083 Strasbourg Cedex, France
| | - Hendrik Meyer
- Max-Planck-Institut für Polymerforschung, D-55128 Mainz, Germany; and CNRS, Institut Charles Sadron, 6, rue Boussingault, F-67083 Strasbourg Cedex, France
| | - Florian Müller-Plathe
- Max-Planck-Institut für Polymerforschung, D-55128 Mainz, Germany; and CNRS, Institut Charles Sadron, 6, rue Boussingault, F-67083 Strasbourg Cedex, France
| |
Collapse
|
42
|
Meyer H, Biermann O, Faller R, Reith D, Müller-Plathe F. Coarse graining of nonbonded inter-particle potentials using automatic simplex optimization to fit structural properties. J Chem Phys 2000. [DOI: 10.1063/1.1308542] [Citation(s) in RCA: 99] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
43
|
Hahn O, Mooney DA, Müller-Plathe F, Kremer K. A new mechanism for penetrant diffusion in amorphous polymers: Molecular dynamics simulations of phenol diffusion in bisphenol-A-polycarbonate. J Chem Phys 1999. [DOI: 10.1063/1.479904] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
44
|
Ballone P, Montanari B, Jones RO, Hahn O. Polycarbonate Simulations with a Density Functional Based Force Field. J Phys Chem A 1999. [DOI: 10.1021/jp9902598] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- P. Ballone
- Institut für Festkörperforschung, Forschungszentrum Jülich, D-52425 Jülich, Germany
| | - B. Montanari
- Institut für Festkörperforschung, Forschungszentrum Jülich, D-52425 Jülich, Germany
| | - R. O. Jones
- Institut für Festkörperforschung, Forschungszentrum Jülich, D-52425 Jülich, Germany
| | - O. Hahn
- Max-Planck-Institut für Polymerforschung, Postfach 3148, D-55021 Mainz, Germany
| |
Collapse
|