1
|
Sharma S, Oberdisse J, Alauzun JG, Dieudonné-George P, Bizien T, Akkaya C, Hesemann P, Genix AC. Controlled formation of multi-scale porosity in ionosilica templated by ionic liquid. NANOSCALE 2024; 16:6053-6067. [PMID: 38421016 DOI: 10.1039/d3nr06213a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Mesoporous systems are ubiquitous in membrane science and applications due to their high internal surface area and tunable pore size. A new synthesis pathway of hydrolytic ionosilica films with mesopores formed by ionic liquid (IL) templating is proposed and compared with the traditional non-hydrolytic strategy. For both pathways, the multi-scale formation of pores has been studied as a function of IL content, combining the results of thermogravimetric analysis (TGA), nitrogen sorption, and small-angle X-ray scattering (SAXS). The combination of TGA and nitrogen sorption provides access to ionosilica and pore volume fractions, with contributions of meso- and macropores. We then elaborate an original and quantitative geometrical model to analyze the SAXS data based on small spheres (Rs = 1-2 nm) and cylinders (Lcyl = 10-20 nm) with radial polydispersity provided by the nitrogen sorption isotherms. As a result, we found that for a given incorporation of a templating IL, both synthesis pathways produce very similar pore geometries, but the better incorporation efficacy of the new hydrolytic films provides higher mesoporosity. Our combined study provides a coherent view of mesopore geometry, and thereby an optimization pathway of porous ionic membranes in terms of accessible mesoporosity contributing to the specific surface. Possible applications include electrolyte membranes with improved ionic properties, e.g., in fuel cells and batteries, as well as molecular storage.
Collapse
Affiliation(s)
- Shilpa Sharma
- ICGM, Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Julian Oberdisse
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, 34095 Montpellier, France.
| | - Johan G Alauzun
- ICGM, Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | | | - Thomas Bizien
- SOLEIL Synchrotron, L'Orme des Merisiers, Gif-Sur-Yvette, 91192 Saint-Aubin, France
| | - Cansu Akkaya
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, 34095 Montpellier, France.
| | - Peter Hesemann
- ICGM, Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Anne-Caroline Genix
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, 34095 Montpellier, France.
| |
Collapse
|
2
|
Genix AC, Bocharova V, Carroll B, Dieudonné-George P, Chauveau E, Sokolov AP, Oberdisse J. Influence of the Graft Length on Nanocomposite Structure and Interfacial Dynamics. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:748. [PMID: 36839117 PMCID: PMC9960434 DOI: 10.3390/nano13040748] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/10/2023] [Accepted: 02/13/2023] [Indexed: 06/17/2023]
Abstract
Both the dispersion state of nanoparticles (NPs) within polymer nanocomposites (PNCs) and the dynamical state of the polymer altered by the presence of the NP/polymer interfaces have a strong impact on the macroscopic properties of PNCs. In particular, mechanical properties are strongly affected by percolation of hard phases, which may be NP networks, dynamically modified polymer regions, or combinations of both. In this article, the impact on dispersion and dynamics of surface modification of the NPs by short monomethoxysilanes with eight carbons in the alkyl part (C8) is studied. As a function of grafting density and particle content, polymer dynamics is followed by broadband dielectric spectroscopy and analyzed by an interfacial layer model, whereas the particle dispersion is investigated by small-angle X-ray scattering and analyzed by reverse Monte Carlo simulations. NP dispersions are found to be destabilized only at the highest grafting. The interfacial layer formalism allows the clear identification of the volume fraction of interfacial polymer, with its characteristic time. The strongest dynamical slow-down in the polymer is found for unmodified NPs, while grafting weakens this effect progressively. The combination of all three techniques enables a unique measurement of the true thickness of the interfacial layer, which is ca. 5 nm. Finally, the comparison between longer (C18) and shorter (C8) grafts provides unprecedented insight into the efficacy and tunability of surface modification. It is shown that C8-grafting allows for a more progressive tuning, which goes beyond a pure mass effect.
Collapse
Affiliation(s)
- Anne-Caroline Genix
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095 Montpellier, France
| | - Vera Bocharova
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Bobby Carroll
- Department of Physics, University of Tennessee, Knoxville, TN 37996, USA
| | | | - Edouard Chauveau
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095 Montpellier, France
| | - Alexei P. Sokolov
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- Department of Physics, University of Tennessee, Knoxville, TN 37996, USA
- Department of Chemistry, University of Tennessee, Knoxville, TN 37996, USA
| | - Julian Oberdisse
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095 Montpellier, France
| |
Collapse
|
3
|
Genix AC, Bocharova V, Carroll B, Dieudonné-George P, Chauveau E, Sokolov AP, Oberdisse J. How Tuning Interfaces Impacts the Dynamics and Structure of Polymer Nanocomposites Simultaneously. ACS APPLIED MATERIALS & INTERFACES 2023; 15:7496-7510. [PMID: 36700938 DOI: 10.1021/acsami.2c18083] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Fundamental understanding of the macroscopic properties of polymer nanocomposites (PNCs) remains difficult due to the complex interplay of microscopic dynamics and structure, namely interfacial layer relaxations and three-dimensional nanoparticle (NP) arrangements. The effect of surface modification by alkyl methoxysilanes at different grafting densities has been studied in PNCs made of poly(2-vinylpyridine) and spherical 20 nm silica NPs. The segmental dynamics has been probed by broadband dielectric spectroscopy and the filler structure by small-angle X-ray scattering and reverse Monte Carlo simulations. By combining the particle configurations with the interfacial layer properties, it is shown how surface modification tunes the attractive polymer-particle interactions: bare NPs slow down the polymer interfacial layer dynamics over a thickness of ca. 5 nm, while grafting screens these interactions. Our analysis of interparticle spacings and segmental dynamics provides unprecedented insights into the effect of surface modification on the main characteristics of PNCs: particle interactions and polymer interfacial layers.
Collapse
Affiliation(s)
- Anne-Caroline Genix
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095Montpellier, France
| | - Vera Bocharova
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee37831, United States
| | - Bobby Carroll
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee37831, United States
| | | | - Edouard Chauveau
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095Montpellier, France
| | - Alexei P Sokolov
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee37831, United States
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee37996, United States
| | - Julian Oberdisse
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095Montpellier, France
| |
Collapse
|
4
|
Crater ER, Tutika R, Moore RB, Bartlett MD. X-ray scattering as an effective tool for characterizing liquid metal composite morphology. SOFT MATTER 2022; 18:7762-7772. [PMID: 36205260 DOI: 10.1039/d2sm00796g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Quantitative analysis of particle size and size distribution is crucial in establishing structure-property relationships of composite materials. An emerging soft composite architecture involves dispersing droplets of liquid metal throughout an elastomer, enabling synergistic properties of metals and soft polymers. The structure of these materials is typically characterized through real-space microscopy and image analysis; however, these techniques rely on magnified images that may not represent the global-averaged size and distribution of the droplets. In this study, we utilize ultra-small angle X-ray scattering (USAXS) as a reciprocal-space characterization technique that yields global-averaged dimensions of eutectic gallium indium (EGaIn) alloy soft composites. The Unified fit and Monte Carlo scattering methods are applied to determine the particle size and size distributions of the liquid metal droplets in the composites and are shown to be in excellent agreement with results from real-space image analysis. Additionally, all methods indicate that the droplets are getting larger as they are introduced into composites, suggesting that the droplets are agglomerating or possibly coalescing during dispersion. This work demonstrates the viability of X-ray scattering to elucidate structural information about liquid metal droplets for material development for applications in soft robotics, soft electronics, and multifunctional materials.
Collapse
Affiliation(s)
- Erin R Crater
- Department of Chemistry, Virginia Tech, Blacksburg, VA 24061, USA
- Macromolecules Innovation Institute (MII), Virginia Tech, Blacksburg, VA 24061, USA
| | - Ravi Tutika
- Department of Mechanical Engineering, Soft Materials and Structures Lab, Virginia Tech, Blacksburg, VA 24061, USA.
- Macromolecules Innovation Institute (MII), Virginia Tech, Blacksburg, VA 24061, USA
| | - Robert B Moore
- Department of Chemistry, Virginia Tech, Blacksburg, VA 24061, USA
- Macromolecules Innovation Institute (MII), Virginia Tech, Blacksburg, VA 24061, USA
| | - Michael D Bartlett
- Department of Mechanical Engineering, Soft Materials and Structures Lab, Virginia Tech, Blacksburg, VA 24061, USA.
- Macromolecules Innovation Institute (MII), Virginia Tech, Blacksburg, VA 24061, USA
| |
Collapse
|
5
|
Robbes AS, Jestin J, Meneau F, Dalmas F, Boué F, Cousin F. In Situ SAXS and SANS Monitoring of Both Nanofillers and Polymer Chain Microstructure under Uniaxial Stretching in a Nanocomposite with a Controlled Anisotropic Structure. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anne-Sophie Robbes
- Laboratoire Léon Brillouin, CEA Saclay, 91191 Gif-sur-Yvette Cedex France
- Synchrotron SOLEIL, L’Orme des Merisiers,
P.O. Box 48, Saint-Aubin, 91192 Gif sur Yvette, France
| | - Jacques Jestin
- Laboratoire Léon Brillouin, CEA Saclay, 91191 Gif-sur-Yvette Cedex France
| | - Florian Meneau
- Synchrotron SOLEIL, L’Orme des Merisiers,
P.O. Box 48, Saint-Aubin, 91192 Gif sur Yvette, France
| | - Florent Dalmas
- Institut de Chimie et des Matériaux Paris-Est, CNRS UMR 7182, 2-8 rue Henri Dunant, 94320 Thiais France
| | - François Boué
- Laboratoire Léon Brillouin, CEA Saclay, 91191 Gif-sur-Yvette Cedex France
| | - Fabrice Cousin
- Laboratoire Léon Brillouin, CEA Saclay, 91191 Gif-sur-Yvette Cedex France
| |
Collapse
|
6
|
A spatio-temporal in-situ investigation of the Payne effect in silica-filled rubbers in Large Amplitude Oscillatory Extension. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
7
|
OUP accepted manuscript. Microscopy (Oxf) 2022; 71:i148-i164. [DOI: 10.1093/jmicro/dfab057] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 11/22/2021] [Accepted: 12/14/2021] [Indexed: 11/13/2022] Open
|
8
|
Gommes CJ, Jaksch S, Frielinghaus H. Small-angle scattering for beginners. J Appl Crystallogr 2021; 54:1832-1843. [PMID: 34963770 PMCID: PMC8662971 DOI: 10.1107/s1600576721010293] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 10/04/2021] [Indexed: 11/17/2022] Open
Abstract
A non-technical yet rigorous introduction to small-angle scattering is proposed, through the systematic use of Fresnel–Feynman analysis of interference phenomena. Many experimental methods are available for the characterization of nanostructures, but most of them are limited by stringent experimental conditions. When it comes to analysing nanostructures in the bulk or in their natural environment – even as ordinary as water at room temperature – small-angle scattering (SAS) of X-rays or neutrons is often the only option. The rapid worldwide development of synchrotron and neutron facilities over recent decades has opened unprecedented possibilities for using SAS in situ and in a time-resolved way. But, in spite of its huge potential in the field of nanomaterials in general, SAS is covered far less than other characterization methods in non-specialized curricula. Presented here is a rigorous discussion of small-angle scattering, at a technical level comparable to the classical undergraduate coverage of X-ray diffraction by crystals and which contains diffraction as a particular case.
Collapse
Affiliation(s)
- Cedric J Gommes
- Jülich Center for Neutron Science, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Sebastian Jaksch
- Jülich Center for Neutron Science at the Heinz Maier Leibnitz Zentrum, Forschungszentrum Jülich GmbH, Lichtenbergstrasse 1, 85747 Garching, Germany
| | - Henrich Frielinghaus
- Jülich Center for Neutron Science at the Heinz Maier Leibnitz Zentrum, Forschungszentrum Jülich GmbH, Lichtenbergstrasse 1, 85747 Garching, Germany
| |
Collapse
|
9
|
Watanabe D, Miyata T, Nagao T, Kumagai A, Jinnai H. Crack propagation behaviors in a nanoparticle‐filled rubber studied by
in situ
tensile electron microscopy. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210269] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Tomohiro Miyata
- Institute of Multidisciplinary Research for Advanced Materials Tohoku University Sendai Miyagi Japan
| | - Tomohiko Nagao
- School of Engineering Tohoku University Sendai Miyagi Japan
| | - Akemi Kumagai
- Institute of Multidisciplinary Research for Advanced Materials Tohoku University Sendai Miyagi Japan
| | - Hiroshi Jinnai
- Institute of Multidisciplinary Research for Advanced Materials Tohoku University Sendai Miyagi Japan
| |
Collapse
|
10
|
Sun R, Melton M, Safaie N, Ferrier RC, Cheng S, Liu Y, Zuo X, Wang Y. Molecular View on Mechanical Reinforcement in Polymer Nanocomposites. PHYSICAL REVIEW LETTERS 2021; 126:117801. [PMID: 33798376 DOI: 10.1103/physrevlett.126.117801] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 02/19/2021] [Indexed: 06/12/2023]
Abstract
The microscopic origin of mechanical enhancement in polymer nanocomposite (PNC) melts is investigated through the combination of rheology and small-angle neutron scattering. It is shown that in the absence of an extensive particle network, the molecular deformation of polymer chains dominates the stress response on intermediate time scales. Quantitative analyses of small-angle neutron scattering spectra, however, reveal no enhanced structural anisotropy in the PNCs, compared with the pristine polymers under the same deformation conditions. These results demonstrate that the mechanical reinforcement of PNCs is not due to molecular overstraining, but instead a redistribution of strain field in the polymer matrix, akin to the classical picture of hydrodynamic effect of nanoparticles.
Collapse
Affiliation(s)
- Ruikun Sun
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, Michigan 48824, USA
| | - Matthew Melton
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, Michigan 48824, USA
| | - Niloofar Safaie
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | - Robert C Ferrier
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, Michigan 48824, USA
| | - Shiwang Cheng
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, Michigan 48824, USA
| | - Yun Liu
- Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, USA
| | - Xiaobing Zuo
- X-ray Science Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Yangyang Wang
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| |
Collapse
|
11
|
Bailey EJ, Tyagi M, Winey KI. Correlation between backbone and pyridine dynamics in poly(
2‐vinyl
pyridine)/silica polymer nanocomposites. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200416] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Eric J. Bailey
- Department of Materials Science and Engineering University of Pennsylvania Philadelphia Pennsylvania USA
| | - Madhusudan Tyagi
- Center for Neutron Research National Institute of Standards and Technology Gaithersburg Maryland USA
- Department of Materials Science and Engineering University of Maryland College Park Maryland USA
| | - Karen I. Winey
- Department of Materials Science and Engineering University of Pennsylvania Philadelphia Pennsylvania USA
| |
Collapse
|
12
|
Musino D, Oberdisse J, Farago B, Alegria A, Genix AC. Resolving Segmental Polymer Dynamics in Nanocomposites by Incoherent Neutron Spin-Echo Spectroscopy. ACS Macro Lett 2020; 9:910-916. [PMID: 35648525 DOI: 10.1021/acsmacrolett.0c00369] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The segmental dynamics of styrene-butadiene nanocomposites with embedded silica nanoparticles (NPs, ca. 20 vol. %) has been studied by broadband dielectric (BDS) and neutron spin-echo spectroscopy (NSE). It is shown by BDS that overlapping contributions only allow us to conclude on a range of distributions of relaxation times in simplified industrial nanocomposites formed with highly polydisperse NPs. For comparison, structurally similar but less aggregated colloidal nanocomposites have a well-defined distribution of relaxation times due to the reduced influence of interfacial polarization processes. This distribution is widened with respect to the neat polymer, without change in the position of the maximum and at most a small slowing down visible in the average time. We then demonstrate that incoherent NSE can be used to resolve small modifications of segmental dynamics of the industrial samples. By carefully choosing the q-vector of the measurement, experiments with fully hydrogenated polymer give access to the self-dynamics of the polymer in the presence of silica on the scale of approximately 1 nm. Our high-resolution measurements show that the segmental motion is slightly but systematically slowed also by the presence of the industrial filler NPs.
Collapse
Affiliation(s)
- Dafne Musino
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095 Montpellier, France
| | - Julian Oberdisse
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095 Montpellier, France
| | - Bela Farago
- Institut Max von Laue-Paul Langevin (ILL), 71 Avenue des Martyrs, CS 20156, F-38042 Cedex 9 Grenoble, France
| | - Angel Alegria
- Departamento de Fisica de Materiales (UPV/EHU), Materials Physics Center (CSIC-UPV/EHU), Paseo Manuel Lardizábal 5, San Sebastian 20018, Spain
| | - Anne-Caroline Genix
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095 Montpellier, France
| |
Collapse
|
13
|
Senses E, Darvishi S, Tyagi MS, Faraone A. Entangled Polymer Dynamics in Attractive Nanocomposite Melts. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b02545] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Erkan Senses
- Department of Chemical and Biological Engineering, Koç University, Istanbul 34450, Turkey
| | - Saeid Darvishi
- Department of Chemical and Biological Engineering, Koç University, Istanbul 34450, Turkey
| | - Madhu Sudan Tyagi
- NIST Center for Neutron Research, Gaithersburg, Maryland 20899, United States
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742-2115 United States
| | - Antonio Faraone
- NIST Center for Neutron Research, Gaithersburg, Maryland 20899, United States
| |
Collapse
|
14
|
Bailey EJ, Winey KI. Dynamics of polymer segments, polymer chains, and nanoparticles in polymer nanocomposite melts: A review. Prog Polym Sci 2020. [DOI: 10.1016/j.progpolymsci.2020.101242] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
15
|
Shi J, Yan F, Wang C, King S, Qiao Y, Qiu D. Conformational Transitions of Dynamic Polymer Chains Induced by Colloidal Particles in Dilute Solution. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00524] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Junhe Shi
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100190, China
| | - Feng Yan
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100190, China
| | - Chao Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100190, China
| | - Stephen King
- ISIS Pulsed Neutron and Muon Source, STFC Rutherford Appleton Laboratory, Harwell Campus, Didcot OX11 0QX, United Kingdom
| | - Yan Qiao
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100190, China
| | - Dong Qiu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100190, China
| |
Collapse
|
16
|
Musino D, Genix AC, Chauveau E, Bizien T, Oberdisse J. Structural identification of percolation of nanoparticles. NANOSCALE 2020; 12:3907-3915. [PMID: 32003375 DOI: 10.1039/c9nr09395h] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We propose a method relying on structural measurements by small-angle scattering to quantitatively follow aggregation of nanoparticles (NPs) in concentrated colloidal assemblies or suspensions up to percolation, regardless of complex structure factors arising due to interactions. As an experimental model system, the dispersion of silica NPs in a styrene-butadiene matrix has been analyzed by small-angle X-ray scattering and transmission electron microscopy (TEM), as a function of particle concentration. A reverse Monte Carlo analysis applied to the NP scattering compared favorably with TEM. By combining it with an aggregate recognition algorithm, series of representative real space structures and aggregation number distribution functions have been determined up to high concentrations, taking into account particle polydispersity. Our analysis demonstrates that the formation of large percolating aggregates on the scale of the simulation box (of linear dimension 1/qmin, here micron-sized) can be mapped onto the macroscopic percolation characterized by rheology. Our method is thus capable of determining aggregate structure in dense NP systems with strong - possibly unknown - interactions visible in scattering. It is hoped to be useful in many other colloidal systems, beyond the case of polymer nanocomposites exemplarily studied here.
Collapse
Affiliation(s)
- Dafne Musino
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095 Montpellier, France.
| | - Anne-Caroline Genix
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095 Montpellier, France.
| | - Edouard Chauveau
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095 Montpellier, France.
| | - Thomas Bizien
- SOLEIL Synchrotron, L'Orme des Merisiers, Gif-Sur-Yvette, 91192 Saint-Aubin, France
| | - Julian Oberdisse
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095 Montpellier, France.
| |
Collapse
|
17
|
Robles-Hernández B, Monnier X, Pomposo JA, Gonzalez-Burgos M, Cangialosi D, Alegría A. Glassy Dynamics of an All-Polymer Nanocomposite Based on Polystyrene Single-Chain Nanoparticles. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01257] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Beatriz Robles-Hernández
- Departamento de Física de Materiales, University of the Basque Country (UPV/EHU), Apartado 1072, 20080 San Sebastián, Spain
- Centro de Física de Materiales, Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
| | - Xavier Monnier
- Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain
| | - Jose A. Pomposo
- Departamento de Física de Materiales, University of the Basque Country (UPV/EHU), Apartado 1072, 20080 San Sebastián, Spain
- Centro de Física de Materiales, Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
- IKERBASQUE-Basque Foundation for Science, María Díaz de Haro 3, E-48013 Bilbao, Spain
| | - Marina Gonzalez-Burgos
- Centro de Física de Materiales, Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
| | - Daniele Cangialosi
- Centro de Física de Materiales, Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
- Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain
| | - Angel Alegría
- Departamento de Física de Materiales, University of the Basque Country (UPV/EHU), Apartado 1072, 20080 San Sebastián, Spain
- Centro de Física de Materiales, Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
| |
Collapse
|
18
|
Kumar S, Ray D, Abbas S, Saha D, Aswal VK, Kohlbrecher J. Reentrant phase behavior of nanoparticle solutions probed by small-angle scattering. Curr Opin Colloid Interface Sci 2019. [DOI: 10.1016/j.cocis.2019.02.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
19
|
Effect of graphene-derivatives on the responsivity of PNIPAM-based thermosensitive nanocomposites – A review. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.04.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
20
|
De Francesco A, Scaccia L, Lennox RB, Guarini E, Bafile U, Falus P, Maccarini M. Model-free description of polymer-coated gold nanoparticle dynamics in aqueous solutions obtained by Bayesian analysis of neutron spin echo data. Phys Rev E 2019; 99:052504. [PMID: 31212567 DOI: 10.1103/physreve.99.052504] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Indexed: 11/07/2022]
Abstract
We present a neutron spin echo study of the nanosecond dynamics of polyethylene glycol (PEG) functionalized nanosized gold particles dissolved in D_{2}O at two temperatures and two different PEG molecular weights (400D and 2000D). The analysis of the neutron spin echo data was performed by applying a Bayesian approach to the description of time correlation function decays in terms of exponential terms, recently proved to be theoretically rigorous. This approach, which addresses in a direct way the fundamental issue of model choice in any dynamical analysis, provides here a guide to the most statistically supported way to follow the decay of the intermediate scattering functions I(Q,t) by basing on statistical grounds the choice of the number of terms required for the description of the nanosecond dynamics of the studied systems. Then, the presented analysis avoids from the start resorting to a preselected framework and can be considered as model free. By comparing the results of PEG-coated nanoparticles with those obtained in PEG2000 solutions, we were able to disentangle the translational diffusion of the nanoparticles from the internal dynamics of the polymer grafted to them, and to show that the polymer corona relaxation follows a pure exponential decay in agreement with the behavior predicted by coarse grained molecular dynamics simulations and theoretical models. This methodology has one further advantage: in the presence of a complex dynamical scenario, I(Q,t) is often described in terms of the Kohlrausch-Williams-Watts function that can implicitly represent a distribution of relaxation times. By choosing to describe the I(Q,t) as a sum of exponential functions and with the support of the Bayesian approach, we can explicitly determine when a finer-structure analysis of the dynamical complexity of the system exists according to the available data without the risk of overparametrization. The approach presented here is an effective tool that can be used in general to provide an unbiased interpretation of neutron spin echo data or whenever spectroscopy techniques yield time relaxation data curves.
Collapse
Affiliation(s)
- Alessio De Francesco
- Consiglio Nazionale delle Ricerche, Istituto Officina dei Materiali c/o OGG Grenoble, France
| | - Luisa Scaccia
- Dipartimento di Economia e Diritto, Università di Macerata, Via Crescimbeni 20, 62100 Macerata, Italy
| | - R Bruce Lennox
- Department of Chemistry, McGill University, Sherbrooke St. West, Montreal, Canada
| | - Eleonora Guarini
- Dipartimento di Fisica e Astronomia, Università di Firenze, via G. Sansone 1, I-50019 Sesto Fiorentino, Italy
| | - Ubaldo Bafile
- Consiglio Nazionale delle Ricerche, Istituto di Fisica Applicata "Nello Carrara", via Madonna del Piano 10, I-50019 Sesto Fiorentino, Italy
| | | | - Marco Maccarini
- Université Grenoble Alpes-Laboratoire TIMC/IMAG UMR CNRS 5525 Grenoble, France
| |
Collapse
|
21
|
Ehrburger-Dolle F, Morfin I, Bley F, Livet F, Heinrich G, Chushkin Y, Sutton M. Anisotropic and heterogeneous dynamics in stretched elastomer nanocomposites. SOFT MATTER 2019; 15:3796-3806. [PMID: 30990483 DOI: 10.1039/c8sm02289e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We use X-ray photon correlation spectroscopy (XPCS) to investigate the dynamics of a stretched elastomer by means of probe particles. The particles dispersed in the elastomer were carbon black or silica aggregates classically used for elastomer reinforcement but their volume fraction is very low (φ < 10-2). We show that their dynamics is slower in the direction of the tensile strain than in the perpendicular one. For hydroxylated silica which is poorly wetted by the elastomer, there is no anisotropy. Two-time correlation functions confirm anisotropic dynamics and suggest dynamical heterogeneity already expected from the q-1 behavior of the relaxation times. The height χ* of the peak of the dynamical susceptibility, determined by the normalized variance of the instantaneous correlation function, is larger in the direction parallel to the strain than in the perpendicular one. It also appears that its q dependence changes with the morphology of the probe particle. Therefore, the heterogeneous dynamic probed by the particles is not related only to that of the strained elastomer matrix. In fact, it results from modification of the dynamics of the polymer chains near the surface of the particles and within the aggregate porosity (bound polymer). It is concluded that XPCS is a powerful method for investigating the dynamics, at a given strain, of the bound polymer-particle units which are responsible, at large volume fractions, for the reinforcement.
Collapse
|
22
|
Song JJ, Bhattacharya R, Kim H, Chang J, Tang TY, Guo H, Ghosh SK, Yang Y, Jiang Z, Kim H, Russell TP, Arya G, Narayanan S, Sinha SK. One-Dimensional Anomalous Diffusion of Gold Nanoparticles in a Polymer Melt. PHYSICAL REVIEW LETTERS 2019; 122:107802. [PMID: 30932658 DOI: 10.1103/physrevlett.122.107802] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Indexed: 06/09/2023]
Abstract
We investigated the dynamics of polymer-grafted gold nanoparticles loaded into polymer melts using x-ray photon correlation spectroscopy. For low molecular weight host matrix polymer chains, normal isotropic diffusion of the gold nanoparticles is observed. For larger molecular weights, anomalous diffusion of the nanoparticles is observed that can be described by ballistic motion and generalized Lévy walks, similar to those often used to discuss the dynamics of jammed systems. Under certain annealing conditions, the diffusion is one-dimensional and related to the direction of heat flow during annealing and is associated with an dynamic alignment of the host polymer chains. Molecular dynamics simulations of a single gold nanoparticle diffusing in a partially aligned polymer network semiquantitatively reproduce the experimental results to a remarkable degree. The results help to showcase how nanoparticles can under certain circumstances move rapidly in polymer networks.
Collapse
Affiliation(s)
- Jing-Jin Song
- Department of Materials Science & Engineering, University of California San Diego, 9500 Gilman Dr. La Jolla, California 92093, USA
| | - Rupak Bhattacharya
- Department of Physics, University of California San Diego, 9500 Gilman Dr. La Jolla, California 92093, USA
| | - Hyunki Kim
- Polymer Science and Engineering Department, University of Massachusetts Amherst, Amherst Massachusetts 01003, USA
| | - Jooyoung Chang
- Polymer Science and Engineering Department, University of Massachusetts Amherst, Amherst Massachusetts 01003, USA
| | - Tsung-Yeh Tang
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Dr. La Jolla, California 92093, USA
| | - Hongyu Guo
- National Institute of Standards and Technology, 100 Bureau Dr., Gaithersburg, Maryland 20899-6102, USA
| | - Sajal K Ghosh
- Department of Physics, University of California San Diego, 9500 Gilman Dr. La Jolla, California 92093, USA
| | - Yi Yang
- Department of Physics, University of California San Diego, 9500 Gilman Dr. La Jolla, California 92093, USA
| | - Zhang Jiang
- Advanced Photon Source, Argonne National Laboratory, 9700 Cass Ave, Lemont, Illinois 60439, USA
| | - Hyeyoung Kim
- Polymer Science and Engineering Department, University of Massachusetts Amherst, Amherst Massachusetts 01003, USA
| | - Thomas P Russell
- Polymer Science and Engineering Department, University of Massachusetts Amherst, Amherst Massachusetts 01003, USA
| | - Gaurav Arya
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Dr. La Jolla, California 92093, USA
| | - Suresh Narayanan
- Advanced Photon Source, Argonne National Laboratory, 9700 Cass Ave, Lemont, Illinois 60439, USA
| | - Sunil K Sinha
- Department of Physics, University of California San Diego, 9500 Gilman Dr. La Jolla, California 92093, USA
| |
Collapse
|
23
|
Bailey EJ, Griffin PJ, Tyagi M, Winey KI. Segmental Diffusion in Attractive Polymer Nanocomposites: A Quasi-Elastic Neutron Scattering Study. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b01716] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Eric J. Bailey
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Philip J. Griffin
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Madhusudan Tyagi
- Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Karen I. Winey
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| |
Collapse
|
24
|
Le Goas M, Paquirissamy A, Gargouri D, Fadda G, Testard F, Aymes-Chodur C, Jubeli E, Pourcher T, Cambien B, Palacin S, Renault JP, Carrot G. Irradiation Effects on Polymer-Grafted Gold Nanoparticles for Cancer Therapy. ACS APPLIED BIO MATERIALS 2018; 2:144-154. [DOI: 10.1021/acsabm.8b00484] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
| | | | | | | | | | - Caroline Aymes-Chodur
- Laboratoire Matériaux et Santé EA 401, Université Paris Sud, UFR de Pharmacie, 5 rue Jean-Baptiste Clément, 92296 Châtenay, France
| | - Emile Jubeli
- Laboratoire Matériaux et Santé EA 401, Université Paris Sud, UFR de Pharmacie, 5 rue Jean-Baptiste Clément, 92296 Châtenay, France
| | - Thierry Pourcher
- Laboratoire TIRO, UMRE 4320, Université de Nice-Sophia Antipolis, CEA, 06107 Nice, France
| | - Béatrice Cambien
- Laboratoire TIRO, UMRE 4320, Université de Nice-Sophia Antipolis, CEA, 06107 Nice, France
| | | | | | | |
Collapse
|
25
|
A grazing incidence neutron spin echo study of near surface dynamics in p(MEO2MA-co-OEGMA) copolymer brushes. Colloid Polym Sci 2018. [DOI: 10.1007/s00396-018-4421-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
26
|
Microscopic structural response of nanoparticles in styrene–butadiene rubber under cyclic uniaxial elongation. Polym J 2018. [DOI: 10.1038/s41428-018-0135-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
27
|
Genix AC, Oberdisse J. Nanoparticle self-assembly: from interactions in suspension to polymer nanocomposites. SOFT MATTER 2018; 14:5161-5179. [PMID: 29893402 DOI: 10.1039/c8sm00430g] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Recent experimental results using in particular small-angle scattering to characterize the self-assembly of mainly hard spherical nanoparticles into higher ordered structures ranging from fractal aggregates to ordered assemblies are reviewed. The crucial control of interparticle interactions is discussed, from chemical surface-modification, or the action of additives like depletion agents, to the generation of directional patches and the use of external fields. It is shown how the properties of interparticle interactions have been used to allow inducing and possibly controlling aggregation, opening the road to the generation of colloidal molecules or potentially metamaterials. In the last part, studies of the microstructure of polymer nanocomposites as an application of volume-spanning and stress-carrying aggregates are discussed.
Collapse
Affiliation(s)
- Anne-Caroline Genix
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095 Montpellier, France.
| | | |
Collapse
|
28
|
Wei R, Wang X, Zhang X, Chen C, Du S. Fabrication of High Gas Barrier Epoxy Nanocomposites: An Approach Based on Layered Silicate Functionalized by a Compatible and Reactive Modifier of Epoxy-Diamine Adduct. Molecules 2018; 23:E1075. [PMID: 29751551 PMCID: PMC6099994 DOI: 10.3390/molecules23051075] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 04/28/2018] [Accepted: 04/29/2018] [Indexed: 11/17/2022] Open
Abstract
To solve the drawbacks of poor dispersion and weak interface in gas barrier nanocomposites, a novel epoxy-diamine adduct (DDA) was synthesized by reacting epoxy monomer DGEBA with curing agent D400 to functionalize montmorillonite (MMT), which could provide complete compatibility and reactivity with a DGEBA/D400 epoxy matrix. Thereafter, sodium type montmorillonite (Na-MMT) and organic-MMTs functionalized by DDA and polyether amines were incorporated with epoxy to manufacture nanocomposites. The effects of MMT functionalization on the morphology and gas barrier property of nanocomposites were evaluated. The results showed that DDA was successfully synthesized, terminating with epoxy and amine groups. By simulating the small-angle neutron scattering data with a sandwich structure model, the optimal dispersion/exfoliation of MMT was observed in a DDA-MMT/DGEBA nanocomposite with a mean radius of 751 Å, a layer thickness of 30.8 Å, and only two layers in each tactoid. Moreover, the DDA-MMT/DGEBA nanocomposite exhibited the best N₂ barrier properties, which were about five times those of neat epoxy. Based on a modified Nielsen model, it was clarified that this excellent gas barrier property was due to the homogeneously dispersed lamellas with almost exfoliated structures. The improved morphology and barrier property confirmed the superiority of the adduct, which provides a general method for developing gas barrier nanocomposites.
Collapse
Affiliation(s)
- Ran Wei
- School of Materials Science and Engineering, Beihang University, Xueyuan Road 37, Beijing 100191, China.
| | - Xiaoqun Wang
- School of Materials Science and Engineering, Beihang University, Xueyuan Road 37, Beijing 100191, China.
| | - Xu Zhang
- School of Materials Science and Engineering, Beihang University, Xueyuan Road 37, Beijing 100191, China.
| | - Chen Chen
- Shanghai Aircraft Manufacturing Co., Ltd., Shanghai 201324, China.
| | - Shanyi Du
- School of Materials Science and Engineering, Beihang University, Xueyuan Road 37, Beijing 100191, China.
| |
Collapse
|
29
|
Theoretical Interpretation of Conformation Variations of Polydimethylsiloxane Induced by Nanoparticles. CHINESE JOURNAL OF POLYMER SCIENCE 2018. [DOI: 10.1007/s10118-018-2019-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
30
|
Guo H, Stan G, Liu Y. Nanoparticle separation based on size-dependent aggregation of nanoparticles due to the critical Casimir effect. SOFT MATTER 2018; 14:1311-1318. [PMID: 29340414 DOI: 10.1039/c7sm01971h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Nanoparticles typically have an inherent wide size distribution that may affect the performance and reliability of many nanomaterials. Because the synthesis and purification of nanoparticles with desirable sizes are crucial to the applications of nanoparticles in various fields including medicine, biology, health care, and energy, there is a great need to search for more efficient and generic methods for size-selective nanoparticle purification/separation. Here we propose and conclusively demonstrate the effectiveness of a size-selective particle purification/separation method based on the critical Casimir force. The critical Casimir force is a generic interaction between colloidal particles near the solvent critical point and has been extensively studied in the past several decades due to its importance in reversibly controlling the aggregation and stability of colloidal particles. Combining multiple experimental techniques, we found that the critical Casimir force-induced aggregation depends on relative particle sizes in a system with larger ones aggregating first and the smaller ones remaining in solution. Based on this observation, a new size-dependent nanoparticle purification/separation method is proposed and demonstrated to be very efficient in purifying commercial silica nanoparticles in the lutidine/water binary solvent. Due to the ubiquity of the critical Casimir force for many colloidal particles in binary solvents, this method might be applicable to many types of colloidal particles.
Collapse
Affiliation(s)
- Hongyu Guo
- Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.
| | | | | |
Collapse
|
31
|
Xu H, Song Y, Jia E, Zheng Q. Dynamics heterogeneity in silica-filled nitrile butadiene rubber. J Appl Polym Sci 2018. [DOI: 10.1002/app.46223] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Huilong Xu
- Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
| | - Yihu Song
- Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Zhejiang University; Hangzhou 310027 China
| | - Erwen Jia
- Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
| | - Qiang Zheng
- Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Zhejiang University; Hangzhou 310027 China
| |
Collapse
|
32
|
Contributions of silica network and interfacial fraction in reinforcement and Payne effect of polypropylene glycol nanocomposites. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.01.056] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
33
|
Oberdisse J. Introduction to soft matter and neutron scattering. EPJ WEB OF CONFERENCES 2018. [DOI: 10.1051/epjconf/201818801001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
As an opening lecture to the French-Swedish neutron scattering school held in Uppsala (6th to 9th of December 2016), the basic concepts of both soft matter science and neutron scattering are introduced. Typical soft matter systems like self-assembled surfactants in water, microemulsions, (co-)polymers, and colloids are presented. It will be shown that widely different systems have a common underlying physics dominated by the thermal energy, with astonishing consequences on their statistical thermodynamics, and ultimately rheological properties – namely softness. In the second part, the fundamentals of neutron scattering techniques and in particular small-angle neutron scattering as a powerful method to characterize soft matter systems will be outlined.
Collapse
|
34
|
Genix AC, Oberdisse J. Determination of the local density of polydisperse nanoparticle assemblies. SOFT MATTER 2017; 13:8144-8155. [PMID: 29105722 DOI: 10.1039/c7sm01640a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Quantitative characterization of the average structure of dense nanoparticle assemblies and aggregates is a common problem in nanoscience. Small-angle scattering is a suitable technique, but it is usually limited to not too big assemblies due to the limited experimental range, low concentrations to avoid interactions, and monodispersity to keep calculations tractable. In the present paper, a straightforward analysis of the generally available scattered intensity - even for large assemblies, at high concentrations - is detailed, providing information on the local volume fraction of polydisperse particles with hard sphere interactions. It is based on the identical local structure of infinite homogeneous nanoparticle assemblies and their subsets forming finite-sized clusters. This approach is extended to polydispersity, using Monte-Carlo simulations of hard and moderately sticky hard spheres. As a result, a simple relationship between the observed structure factor minimum - termed the correlation hole - and the average local volume fraction κ on the scale of neighboring particles is proposed and validated through independent aggregate simulations. This relationship shall be useful as an efficient tool for the structural analysis of arbitrarily aggregated colloidal systems.
Collapse
Affiliation(s)
- Anne-Caroline Genix
- Laboratoire Charles Coulomb (L2C), UMR 5221 CNRS, Université de Montpellier, F-34095 Montpellier, France.
| | | |
Collapse
|
35
|
Senses E, Tyagi M, Natarajan B, Narayanan S, Faraone A. Chain dynamics and nanoparticle motion in attractive polymer nanocomposites subjected to large deformations. SOFT MATTER 2017; 13:7922-7929. [PMID: 29034930 DOI: 10.1039/c7sm01009e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The effect of large deformation on the chain dynamics in attractive polymer nanocomposites was investigated using neutron scattering techniques. Quasi-elastic neutron backscattering measurements reveal a substantial reduction of polymer mobility in the presence of attractive, well-dispersed nanoparticles. In addition, large deformations are observed to cause a further slowing down of the Rouse rates at high particle loadings, where the interparticle spacings are slightly smaller than the chain dimensions, i.e. in the strongly confined state. No noticeable change, however, was observed for a lightly confined system. The reptation tube diameter, measured by neutron spin echo, remained unchanged after shear, suggesting that the level of chain-chain entanglements is not significantly affected. The shear-induced changes in the interparticle bridging reflect the slow nanoparticle motion measured by X-ray photon correlation spectroscopy. These results provide a first step for understanding how large shear can significantly affect the segmental motion in nanocomposites and open up new opportunities for designing mechanically responsive soft materials.
Collapse
Affiliation(s)
- Erkan Senses
- NIST Center for Neutron Research, National Institute of Standards and Technology Gaithersburg, MD 20899-8562, USA.
| | | | | | | | | |
Collapse
|
36
|
Oberdisse J, Hellweg T. Structure, interfacial film properties, and thermal fluctuations of microemulsions as seen by scattering experiments. Adv Colloid Interface Sci 2017; 247:354-362. [PMID: 28751064 DOI: 10.1016/j.cis.2017.07.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 07/12/2017] [Accepted: 07/12/2017] [Indexed: 10/19/2022]
Abstract
The physics of microemulsions and in particular Dominique Langevin's contributions to the understanding of microemulsion structure and bending properties using scattering techniques are reviewed. Among the many methods used by her and her co-workers, we particularly emphasize optical techniques and small angle neutron scattering (SANS), but also neutron spin echo spectroscopy (NSE). The review is then extended to more recent studies of properties of microemulsions close to surfaces, using reflectometry and grazing-incidence small angle neutron scattering (GISANS).
Collapse
|
37
|
Musino D, Genix AC, Fayolle C, Papon A, Guy L, Meissner N, Kozak R, Weda P, Bizien T, Chaussée T, Oberdisse J. Synergistic Effect of Small Molecules on Large-Scale Structure of Simplified Industrial Nanocomposites. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00954] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Dafne Musino
- Laboratoire
Charles Coulomb (L2C), UMR 5221 CNRS, Université de Montpellier, F-34095 Montpellier, France
| | - Anne-Caroline Genix
- Laboratoire
Charles Coulomb (L2C), UMR 5221 CNRS, Université de Montpellier, F-34095 Montpellier, France
| | - Caroline Fayolle
- Solvay
Silica, 15 rue Pierre Pays BP52, 69660 Collonges au Mont d’Or, France
| | - Aurélie Papon
- Solvay
Silica, 15 rue Pierre Pays BP52, 69660 Collonges au Mont d’Or, France
| | - Laurent Guy
- Solvay
Silica, 15 rue Pierre Pays BP52, 69660 Collonges au Mont d’Or, France
| | | | - Radosław Kozak
- Synthos Spółka
Akcyjna, Chemików 1, 32600 Oświęcim, Poland
| | - Pawel Weda
- Synthos Spółka
Akcyjna, Chemików 1, 32600 Oświęcim, Poland
| | - Thomas Bizien
- SOLEIL Synchrotron, L’Orme des Merisiers, Gif-Sur-Yvette, 91192 Saint-Aubin, France
| | - Thomas Chaussée
- Solvay
Silica, 15 rue Pierre Pays BP52, 69660 Collonges au Mont d’Or, France
| | - Julian Oberdisse
- Laboratoire
Charles Coulomb (L2C), UMR 5221 CNRS, Université de Montpellier, F-34095 Montpellier, France
| |
Collapse
|
38
|
Krutyeva M, Pasini S, Monkenbusch M, Allgaier J, Maiz J, Mijangos C, Hartmann-Azanza B, Steinhart M, Jalarvo N, Richter D. Polymer dynamics under cylindrical confinement featuring a locally repulsive surface: A quasielastic neutron scattering study. J Chem Phys 2017; 146:203306. [DOI: 10.1063/1.4974836] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- M. Krutyeva
- Jülich Centre for Neutron Science (JCNS) and Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, Jülich, Germany
| | - S. Pasini
- Jülich Centre for Neutron Science (JCNS) and Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, Jülich, Germany
| | - M. Monkenbusch
- Jülich Centre for Neutron Science (JCNS) and Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, Jülich, Germany
| | - J. Allgaier
- Jülich Centre for Neutron Science (JCNS) and Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, Jülich, Germany
| | - J. Maiz
- Instituto de Ciencia y Tecnología de Polímeros, CSIC. Juan de la Cierva 3, Madrid 28006, Spain
| | - C. Mijangos
- Instituto de Ciencia y Tecnología de Polímeros, CSIC. Juan de la Cierva 3, Madrid 28006, Spain
| | - B. Hartmann-Azanza
- Institut für Chemie neuer Materialen, Universität Osnabrück, Barbarastraße 7, D-46069 Osnabrück, Germany
| | - M. Steinhart
- Institut für Chemie neuer Materialen, Universität Osnabrück, Barbarastraße 7, D-46069 Osnabrück, Germany
| | - N. Jalarvo
- Jülich Centre for Neutron Science (JCNS) and Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, Jülich, Germany
- Chemical and Engineering Materials Division, Oak Ridge National Laboratory (ORNL), P.O. Box 2008, Oak Ridge, Tennessee 37831, USA
| | - D. Richter
- Jülich Centre for Neutron Science (JCNS) and Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, Jülich, Germany
| |
Collapse
|
39
|
Keshavarz M, Engelkamp H, Xu J, van den Boomen OI, Maan JC, Christianen PCM, Rowan AE. Confining Potential as a Function of Polymer Stiffness and Concentration in Entangled Polymer Solutions. J Phys Chem B 2017; 121:5613-5620. [DOI: 10.1021/acs.jpcb.6b12667] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Masoumeh Keshavarz
- High
Field Magnet Laboratory (HFML-EMFL) and Institute for Molecules and
Materials, Radboud University, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands
- Institute
for Molecules and Materials, Department of Molecular Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Hans Engelkamp
- High
Field Magnet Laboratory (HFML-EMFL) and Institute for Molecules and
Materials, Radboud University, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands
| | - Jialiang Xu
- Institute
for Molecules and Materials, Department of Molecular Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Onno I. van den Boomen
- Institute
for Molecules and Materials, Department of Molecular Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Jan C. Maan
- High
Field Magnet Laboratory (HFML-EMFL) and Institute for Molecules and
Materials, Radboud University, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands
| | - Peter C. M. Christianen
- High
Field Magnet Laboratory (HFML-EMFL) and Institute for Molecules and
Materials, Radboud University, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands
| | - Alan E. Rowan
- Institute
for Molecules and Materials, Department of Molecular Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| |
Collapse
|
40
|
|
41
|
Noda Y, Koizumi S, Masui T, Mashita R, Kishimoto H, Yamaguchi D, Kumada T, Takata SI, Ohishi K, Suzuki JI. Contrast variation by dynamic nuclear polarization and time-of-flight small-angle neutron scattering. I. Application to industrial multi-component nanocomposites. J Appl Crystallogr 2016; 49:2036-2045. [PMID: 27980510 PMCID: PMC5139992 DOI: 10.1107/s1600576716016472] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 10/15/2016] [Indexed: 11/10/2022] Open
Abstract
Dynamic nuclear polarization (DNP) at low temperature (1.2 K) and high magnetic field (3.3 T) was applied to a contrast variation study in small-angle neutron scattering (SANS) focusing on industrial rubber materials. By varying the scattering contrast by DNP, time-of-flight SANS profiles were obtained at the pulsed neutron source of the Japan Proton Accelerator Research Complex (J-PARC). The concentration of a small organic molecule, (2,2,6,6-tetramethylpiperidine-1-yl)oxy (TEMPO), was carefully controlled by a doping method using vapour sorption into the rubber specimens. With the assistance of microwave irradiation (94 GHz), almost full polarization of the paramagnetic electronic spin of TEMPO was transferred to the spin state of hydrogen (protons) in the rubber materials to obtain a high proton spin polarization (PH). The following samples were prepared: (i) a binary mixture of styrene-butadiene random copolymer (SBR) with silica particles (SBR/SP); and (ii) a ternary mixture of SBR with silica and carbon black particles (SBR/SP/CP). For the binary mixture (SBR/SP), the intensity of SANS significantly increased or decreased while keeping its q dependence for PH = -35% or PH = 40%, respectively. The q behaviour of SANS for the SBR/SP mixture can be reproduced using the form factor of a spherical particle. The intensity at low q (∼0.01 Å-1) varied as a quadratic function of PH and indicated a minimum value at PH = 30%, which can be explained by the scattering contrast between SP and SBR. The scattering intensity at high q (∼0.3 Å-1) decreased with increasing PH, which is attributed to the incoherent scattering from hydrogen. For the ternary mixture (SBR/SP/CP), the q behaviour of SANS was varied by changing PH. At PH = -35%, the scattering maxima originating from the form factor of SP prevailed, whereas at PH = 29% and PH = 38%, the scattering maxima disappeared. After decomposition of the total SANS according to inverse matrix calculations, the partial scattering functions were obtained. The partial scattering function obtained for SP was well reproduced by a spherical form factor and matched the SANS profile for the SBR/SP mixture. The partial scattering function for CP exhibited surface fractal behaviour according to q-3.6, which is consistent with the results for the SBR/CP mixture.
Collapse
Affiliation(s)
- Yohei Noda
- Institute of Quantum Beam Science, Ibaraki University, Ibaraki, 316-8511, Japan
| | - Satoshi Koizumi
- Institute of Quantum Beam Science, Ibaraki University, Ibaraki, 316-8511, Japan
| | - Tomomi Masui
- Sumitomo Rubber Industries Ltd, Kobe, 651-0072, Japan
| | - Ryo Mashita
- Sumitomo Rubber Industries Ltd, Kobe, 651-0072, Japan
| | | | - Daisuke Yamaguchi
- Materials Science Research Center, Japan Atomic Energy Agency, Ibaraki, 319-1195, Japan
| | - Takayuki Kumada
- Materials Science Research Center, Japan Atomic Energy Agency, Ibaraki, 319-1195, Japan
| | - Shin-Ichi Takata
- J-PARC Center, Japan Atomic Energy Agency, Ibaraki, 319-1195, Japan
| | - Kazuki Ohishi
- Neutron Science and Technology Center, Comprehensive Research Organization for Science and Society (CROSS), Ibaraki, 319-1106, Japan
| | - Jun-Ichi Suzuki
- Neutron Science and Technology Center, Comprehensive Research Organization for Science and Society (CROSS), Ibaraki, 319-1106, Japan
| |
Collapse
|
42
|
Jouault N, Jestin J. Intra- and Interchain Correlations in Polymer Nanocomposites: A Small-Angle Neutron Scattering Extrapolation Method. ACS Macro Lett 2016; 5:1095-1099. [PMID: 35658187 DOI: 10.1021/acsmacrolett.6b00500] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this Letter we applied for the first time a small-angle neutron scattering (SANS) extrapolation method to study the influence of nanoparticles (NPs) on polymer chain conformation in polymer nanocomposites (PNCs). This new approach is based on a perfect NP matching thanks to a statistical hydrogenated (H)/ deuterated (D) polymer matrix in which a certain amount of labeled chain (H) is added. The extrapolation to zero H content gives the intrachain structure factor, S1(q), and the interchain correlations, S2(q), the latter not being accessible under the zero average contrast (ZAC) condition preferentially used in the previous studies. We validate the method on well-known silica/polystyrene (PS) PNCs and compare the results with our previous ZAC measurements. The analysis of both S1(q) and S2(q) shows (i) no significant modifications of the radius of gyration Rg of the chain and of the interchain interaction induced by the presence of NPs and more interestingly (ii) the existence of chain domains with lower densities included inside NP clusters as the result of excluded volume effects that create an extra scattering at low q. The extrapolation method unambiguously shows that the unexpected behavior observed at low q comes from the chains and not from the unmatched NPs.
Collapse
Affiliation(s)
- Nicolas Jouault
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX, Case
51, 4 place Jussieu, F-75005 Paris, France
| | - Jacques Jestin
- Laboratoire
Léon Brillouin (LLB), CEA Saclay, 91191 Gif-Sur-Yvette, France
| |
Collapse
|
43
|
Schmitt Pauly C, Genix AC, Alauzun JG, Jestin J, Sztucki M, Mutin PH, Oberdisse J. Structure of alumina-silica nanoparticles grafted with alkylphosphonic acids in poly(ethylacrylate) nanocomposites. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.04.073] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
44
|
Jouault N, Crawford MK, Chi C, Smalley RJ, Wood B, Jestin J, Melnichenko YB, He L, Guise WE, Kumar SK. Polymer Chain Behavior in Polymer Nanocomposites with Attractive Interactions. ACS Macro Lett 2016; 5:523-527. [PMID: 35607227 DOI: 10.1021/acsmacrolett.6b00164] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Chain behavior has been determined in polymer nanocomposites (PNCs) comprised of well-dispersed 12 nm diameter silica nanoparticles (NPs) in poly(methyl methacrylate) (PMMA) matrices by Small-Angle Neutron Scattering (SANS) measurements under the Zero Average Contrast (ZAC) condition. In particular, we directly characterize the bound polymer layer surrounding the NPs, revealing the bound layer profile. The SANS spectra in the high-q region also show no significant change in the bulk polymer radius of gyration on the addition of the NPs. We thus suggest that the bulk polymer conformation in PNCs should generally be determined using the high q region of SANS data.
Collapse
Affiliation(s)
- Nicolas Jouault
- Sorbonne Universités, UPMC Univ Paris 06,
CNRS, Laboratoire PHENIX, Case 51, 4 place Jussieu, F-75005 Paris, France
- Department
of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Michael K. Crawford
- DuPont Central
Research
and Development, E400/5424, Wilmington, Delaware 19803, United States
| | - Changzai Chi
- DuPont Central
Research
and Development, E400/5424, Wilmington, Delaware 19803, United States
| | - Robert J. Smalley
- DuPont Central
Research
and Development, E400/5424, Wilmington, Delaware 19803, United States
| | - Barbara Wood
- DuPont Central
Research
and Development, E400/5424, Wilmington, Delaware 19803, United States
| | - Jacques Jestin
- Laboratoire Léon
Brillouin (LLB), CEA Saclay, 91191 Gif-Sur-Yvette, France
| | - Yuri B. Melnichenko
- Biology
and Soft Matter Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6393, United States
| | - Lilin He
- Biology
and Soft Matter Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6393, United States
| | - William E. Guise
- DuPont Central
Research
and Development, E400/5424, Wilmington, Delaware 19803, United States
- Advanced
Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439, United States
| | - Sanat K. Kumar
- Department
of Chemical Engineering, Columbia University, New York, New York 10027, United States
| |
Collapse
|