1
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Cao J, Ren S, Xin S, Bai Y, Wang W, Gao W. Significantly enhanced the properties of
PE
/
GO
composites with segregated structures via two‐step compound. J Appl Polym Sci 2021. [DOI: 10.1002/app.50518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jiandong Cao
- Graphene Institute of Lanzhou University‐Fangda Carbon Co., Ltd, Key Laboratory of Special Function Materials and Structure Design of Ministry of Education, Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education Lanzhou University Lanzhou China
| | - Shangyuan Ren
- Graphene Institute of Lanzhou University‐Fangda Carbon Co., Ltd, Key Laboratory of Special Function Materials and Structure Design of Ministry of Education, Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education Lanzhou University Lanzhou China
| | - Shixuan Xin
- Graphene Institute of Lanzhou University‐Fangda Carbon Co., Ltd, Key Laboratory of Special Function Materials and Structure Design of Ministry of Education, Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education Lanzhou University Lanzhou China
| | - Yongxiao Bai
- Graphene Institute of Lanzhou University‐Fangda Carbon Co., Ltd, Key Laboratory of Special Function Materials and Structure Design of Ministry of Education, Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education Lanzhou University Lanzhou China
| | - Wenjie Wang
- Advanced Catalysis Center, College of Chemistry and Chemical Engineering Lanzhou University Lanzhou China
| | - Wensheng Gao
- Advanced Catalysis Center, College of Chemistry and Chemical Engineering Lanzhou University Lanzhou China
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2
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Drużbicki K, Gaboardi M, Fernandez-Alonso F. Dynamics & Spectroscopy with Neutrons-Recent Developments & Emerging Opportunities. Polymers (Basel) 2021; 13:1440. [PMID: 33947108 PMCID: PMC8125526 DOI: 10.3390/polym13091440] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 04/27/2021] [Indexed: 12/19/2022] Open
Abstract
This work provides an up-to-date overview of recent developments in neutron spectroscopic techniques and associated computational tools to interrogate the structural properties and dynamical behavior of complex and disordered materials, with a focus on those of a soft and polymeric nature. These have and continue to pave the way for new scientific opportunities simply thought unthinkable not so long ago, and have particularly benefited from advances in high-resolution, broadband techniques spanning energy transfers from the meV to the eV. Topical areas include the identification and robust assignment of low-energy modes underpinning functionality in soft solids and supramolecular frameworks, or the quantification in the laboratory of hitherto unexplored nuclear quantum effects dictating thermodynamic properties. In addition to novel classes of materials, we also discuss recent discoveries around water and its phase diagram, which continue to surprise us. All throughout, emphasis is placed on linking these ongoing and exciting experimental and computational developments to specific scientific questions in the context of the discovery of new materials for sustainable technologies.
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Affiliation(s)
- Kacper Drużbicki
- Materials Physics Center, CSIC-UPV/EHU, Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastian, Spain;
- Polish Academy of Sciences, Center of Molecular and Macromolecular Studies, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Mattia Gaboardi
- Elettra—Sincrotrone Trieste S.C.p.A., S.S. 14 km 163.5 in Area Science Park, 34149 Trieste, Italy;
| | - Felix Fernandez-Alonso
- Materials Physics Center, CSIC-UPV/EHU, Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastian, Spain;
- Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastian, Spain
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK
- IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain
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3
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Yang Y, Ali N, Bilal M, Khan A, Ali F, Mao P, Ni L, Gao X, Hong K, Rasool K, Iqbal HM. Robust membranes with tunable functionalities for sustainable oil/water separation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114701] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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4
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Al‐Bermany E, Chen B. Preparation and characterisation of poly(ethylene glycol)‐adsorbed graphene oxide nanosheets. POLYM INT 2020. [DOI: 10.1002/pi.6140] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ehssan Al‐Bermany
- Department of Materials Science and Engineering University of Sheffield Sheffield UK
- Department of Physics, College of Education for Pure Sciences University of Babylon Babylon Iraq
| | - Biqiong Chen
- School of Mechanical and Aerospace Engineering Queenʼs University Belfast Belfast UK
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5
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Thermal Stabilization of Polyoxymethylene by PEG-Functionalized Hydroxyapatite: Examining the Effects of Reduced Formaldehyde Release and Enhanced Bioactivity. ADVANCES IN POLYMER TECHNOLOGY 2019. [DOI: 10.1155/2019/9728637] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Nanostructured hydroxyapatite (HA) functionalized with poly(ethylene glycol) (HA-g-PEG) of different molar mass was used as a thermal stabilizer to prepare polyoxymethylene (POM) composites by a melt processing method. The chemical and crystalline structure of (HA-g-PEG) and POM/HA-g-PEG composites was investigated by means of FTIR and XRD. The thermal properties, degree of crystallinity, and melting behaviour of POM-based composites were analysed with TG, DSC, and TOPEM DSC methods. The tensile strength, Young’s modulus, toughness, and wettability of POM were investigated as well. A preliminary assessment of bioactivity, in vitro chemical stability, and formaldehyde release from POM/HA-g-PEG composites by Schiff’s test was also performed. An SEM/EDX method was used to observe the morphology of POM/HA-g-PEG composites. The results indicate that the addition of 1% HA-g-PEG slightly increases the melting temperature and degree of crystallinity. In small amounts, HA-g-PEG particles probably act as nucleating agents for the POM crystallization process. Incorporation of 5% HA-g-PEG to POM caused a decrease in the crystallinity of the polymer matrix, as a result, some mechanical properties of POM/HA-g-PEG composites also decreased. The thermal stability of POM/HA-g-PEG composites improved significantly from 309°C for unmodified POM to 342°C for POM/10.0% HA-g-PEG 600. The most effective thermal stabilizer was synthesized with the lowest mass-average molar mass PEG. The in vitro bioactivity test confirmed that, as the average molar mass of PEG in HA-g-PEG hybrids increased, POM-based composites indicated higher bioactivity. The in vitro chemical stability analysis results showed that both the POM matrix and the HA-g-PEG additive remain stable during the whole incubation time. Importantly, after seven days of dynamic incubation, no formaldehyde was detected in all filtrates, which is crucial in biomedical applications, among others.
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6
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Barroso-Bujans F, Allgaier J, Alegria A. Poly(ethylene oxide) Melt Intercalation in Graphite Oxide: Sensitivity to Topology, Cyclic versus Linear Chains. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01846] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Fabienne Barroso-Bujans
- Materials Physics Center, CSIC-UPV/EHU, Paseo Manuel Lardizábal 5, San Sebastian 20018, Spain
- Donostia International Physics Center (DIPC), Paseo Manuel Lardizábal 4, San Sebastian 20018, Spain
- IKERBASQUE—Basque Foundation for Science, María Díaz de Haro 3, E-48013 Bilbao, Spain
- Departamento de Física de Materiales, University of the Basque Country (UPV/EHU), Apartado 1072, San Sebastian 20080, Spain
| | - Jürgen Allgaier
- Jülich Centre for Neutron Science (JCNS-1) and Institute for Complex Systems (ICS-1), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Angel Alegria
- Materials Physics Center, CSIC-UPV/EHU, Paseo Manuel Lardizábal 5, San Sebastian 20018, Spain
- Departamento de Física de Materiales, University of the Basque Country (UPV/EHU), Apartado 1072, San Sebastian 20080, Spain
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7
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Abstract
We review recent neutron scattering work and related results from simulation and complementary techniques focusing on the microscopic dynamics of polymers under confinement. Confinement is either realized in model porous materials or in polymer nanocomposites (PNC). The dynamics of such confined polymers is affected on the local segmental level, the level of entanglements as well as on global levels: (i) at the segmental level the interaction with the surface is of key importance. At locally repulsive surfaces compared to the bulk the segmental dynamics is not altered. Attractive surfaces slow down the segmental dynamics in their neighborhood but do not give rise to dead, glassy layers. (ii) Confinement generally has little effect on the inter-chain entanglements: both for weakly as well as for marginally confined polymers the reptation tube size is not changed. Only for strongly confined polymers disentanglement takes place. Similarly, in PNC at higher NP loading disentanglement phenomena are observed; in addition, at very high loading a transition from polymer caused topological constraints to purely geometrical constraints is observed. (iii) On the more global scale NSE experiments revealed important information on the nature of the interphase between adsorbed layer and bulk polymer. (iv) Polymer grafts at NP mutually confine each other, an effect that is most pronounced for one component NP. (v) Global diffusion of entangled polymers both in weakly and strongly attractive PNC is governed by the ratio of bottle-neck to chain size that characterizes the 'entropic barrier' for global diffusion.
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Affiliation(s)
- Dieter Richter
- Jülich Centre for Neutron Science (JCNS-1) and Institute of Complex Systems (ICS-1), Forschungszentrum Jülich GmbH, Jülich, Germany.
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8
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Scalambra F, Rudić S, Romerosa A. Molecular Insights into Bulk and Porous κ2
P,N
-PTA Metal-Organic Polymers by Simultaneous Raman Spectroscopy and Inelastic Neutron Scattering. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801283] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Franco Scalambra
- Áea de Química Inorgánica-CIESOL; Universidad de Almería; Carretera Sacramento s/n 04120 La Canada de San Urbano Spain
| | - Svemir Rudić
- ISIS Facility; STFC, Rutherford Appleton Laboratory; Chilton OX11 0QX Didcot UK
| | - Antonio Romerosa
- Áea de Química Inorgánica-CIESOL; Universidad de Almería; Carretera Sacramento s/n 04120 La Canada de San Urbano Spain
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9
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Wu H, Li L, Tsuboi M, Cheng Y, Wang W, Mamontov E, Uchida S, Wang Z, Yin P. Spatial-Temporal Characteristics of Confined Polymer Motion Determine Proton Conduction of Polyoxometalate-Poly(ethylene glycol) Hybrid Nanocomposites. J Phys Chem Lett 2018; 9:5772-5777. [PMID: 30107120 DOI: 10.1021/acs.jpclett.8b02113] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Highly efficient proton conductors, polyoxometalate-poly(ethylene glycol) (POM-PEG) hybrid nanocomposites, have been synthesized by encapsulating a single PEG chain inside the 1D nanochannel defined by the frameworks of POMs. By employing two types of neutron scattering techniques complemented by thermal analysis, we prove that in a nanochannel a single PEG chain stays as a distorted helix. More importantly, we reveal that the PEG segments perform a localized longitudinal random walk and quantitatively show the strong correlation between the local motion of PEG and the macroscopic proton conduction of the material. On the basis of these spatial-temporal characteristics, a microscopic picture for the proton conduction process of POM-PEG hybrid materials is proposed.
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Affiliation(s)
- Huarui Wu
- Department of Engineering Physics , Tsinghua University , Beijing 100084 , China
| | - Lengwan Li
- South China Advanced Institute for Soft Matter Science and Technology & State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , China
| | - Masaki Tsuboi
- Department of Basic Sciences, School of Arts and Sciences , The University of Tokyo , 3-8-1 Komaba , Meguro-ku, Tokyo 153-8902 , Japan
| | - Yongqiang Cheng
- Neutron Scattering Division , Oak Ridge National Laboratory , Oak Ridge , Tennessee 37831 , United States
| | - Weiyu Wang
- South China Advanced Institute for Soft Matter Science and Technology & State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , China
| | - Eugene Mamontov
- Neutron Scattering Division , Oak Ridge National Laboratory , Oak Ridge , Tennessee 37831 , United States
| | - Sayaka Uchida
- Department of Basic Sciences, School of Arts and Sciences , The University of Tokyo , 3-8-1 Komaba , Meguro-ku, Tokyo 153-8902 , Japan
| | - Zhe Wang
- Department of Engineering Physics , Tsinghua University , Beijing 100084 , China
| | - Panchao Yin
- South China Advanced Institute for Soft Matter Science and Technology & State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , China
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10
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Rissanou AN, Papananou H, Petrakis VS, Doxastakis M, Andrikopoulos KS, Voyiatzis GA, Chrissopoulou K, Harmandaris V, Anastasiadis SH. Structural and Conformational Properties of Poly(ethylene oxide)/Silica Nanocomposites: Effect of Confinement. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00811] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
| | - Hellen Papananou
- Institute
of Electronic Structure and Laser, Foundation for Research and Technology - Hellas,
P.O. Box 1527, 711 10 Heraklion, Crete, Greece
| | | | - Manolis Doxastakis
- Department
of Chemical Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - Konstantinos S. Andrikopoulos
- Institute
of Chemical Engineering Sciences, Foundation for Research and Technology - Hellas,
P.O. Box 1414, 265 04 Patras, Greece
| | - George A. Voyiatzis
- Institute
of Chemical Engineering Sciences, Foundation for Research and Technology - Hellas,
P.O. Box 1414, 265 04 Patras, Greece
| | - Kiriaki Chrissopoulou
- Institute
of Electronic Structure and Laser, Foundation for Research and Technology - Hellas,
P.O. Box 1527, 711 10 Heraklion, Crete, Greece
| | - Vagelis Harmandaris
- Institute
of Applied and Computational Mathematics, Foundation for Research and Technology - Hellas, P.O. Box 1385, 711 10 Heraklion, Crete, Greece
| | - Spiros H. Anastasiadis
- Institute
of Electronic Structure and Laser, Foundation for Research and Technology - Hellas,
P.O. Box 1527, 711 10 Heraklion, Crete, Greece
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11
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12
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Bollas S, Chrissopoulou K, Andrikopoulos KS, Voyiatzis GA, Anastasiadis SH. Polymer Conformation under Confinement. Polymers (Basel) 2017; 9:E73. [PMID: 30970750 PMCID: PMC6432019 DOI: 10.3390/polym9020073] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Revised: 01/28/2017] [Accepted: 02/13/2017] [Indexed: 11/27/2022] Open
Abstract
The conformation of polymer chains under confinement is investigated in intercalated polymer/layered silicate nanocomposites. Hydrophilic poly(ethylene oxide)/sodium montmorillonite, PEO/Na⁺-MMT, hybrids were prepared utilizing melt intercalation with compositions where the polymer chains are mostly within the ~1 nm galleries of the inorganic material. The polymer chains are completely amorphous in all compositions even at temperatures where the bulk polymer is highly crystalline. Attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) is utilized to investigate the conformation of the polymer chains over a broad range of temperatures from below to much higher than the bulk polymer melting temperature. A systematic increase of the gauche conformation relatively to the trans is found with decreasing polymer content both for the C⁻C and the C⁻O bonds that exist along the PEO backbone indicating that the severe confinement and the proximity to the inorganic surfaces results in a more disordered state of the polymer.
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Affiliation(s)
- Stavros Bollas
- Institute of Electronic Structure and Laser, Foundation for Research and Technology, Hellas, P.O. Box 1527, 711 10 Heraklion Crete, Greece.
| | - Kiriaki Chrissopoulou
- Institute of Electronic Structure and Laser, Foundation for Research and Technology, Hellas, P.O. Box 1527, 711 10 Heraklion Crete, Greece.
| | - Konstantinos S Andrikopoulos
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology, Hellas, P.O. Box 1414, 265 04 Patras, Greece.
| | - George A Voyiatzis
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology, Hellas, P.O. Box 1414, 265 04 Patras, Greece.
| | - Spiros H Anastasiadis
- Institute of Electronic Structure and Laser, Foundation for Research and Technology, Hellas, P.O. Box 1527, 711 10 Heraklion Crete, Greece.
- Department of Chemistry, University of Crete, P.O. Box 2208, 710 03 Heraklion Crete, Greece.
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13
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Narayanan T, Wacklin H, Konovalov O, Lund R. Recent applications of synchrotron radiation and neutrons in the study of soft matter. CRYSTALLOGR REV 2017. [DOI: 10.1080/0889311x.2016.1277212] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
| | - Hanna Wacklin
- European Spallation Source ERIC, Lund, Sweden
- Physical Chemistry, Lund University, Lund, Sweden
| | | | - Reidar Lund
- Department of Chemistry, University of Oslo, Blindern, Oslo, Norway
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14
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Barroso-Bujans F, Cerveny S, Palomino P, Enciso E, Rudić S, Fernandez-Alonso F, Alegria A, Colmenero J. Dynamics and Structure of Poly(ethylene oxide) Intercalated in the Nanopores of Resorcinol–Formaldehyde Resin Nanoparticles. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01285] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fabienne Barroso-Bujans
- Centro de Física
de Materiales (CSIC-UPV/EHU), Paseo
Manuel Lardizábal 5, 20018 San Sebastián, Spain
- Donostia International
Physics Center, Paseo Manuel Lardizábal
4, 20018 San Sebastián, Spain
- IKERBASQUE - Basque
Foundation for Science, María
Díaz de Haro 3, E-48013 Bilbao, Spain
| | - Silvina Cerveny
- Centro de Física
de Materiales (CSIC-UPV/EHU), Paseo
Manuel Lardizábal 5, 20018 San Sebastián, Spain
- Donostia International
Physics Center, Paseo Manuel Lardizábal
4, 20018 San Sebastián, Spain
| | - Pablo Palomino
- Departamento
de Química Física I, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Eduardo Enciso
- Departamento
de Química Física I, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Svemir Rudić
- ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, United Kingdom
| | - Felix Fernandez-Alonso
- ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, United Kingdom
- Department
of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - Angel Alegria
- Centro de Física
de Materiales (CSIC-UPV/EHU), Paseo
Manuel Lardizábal 5, 20018 San Sebastián, Spain
| | - Juan Colmenero
- Centro de Física
de Materiales (CSIC-UPV/EHU), Paseo
Manuel Lardizábal 5, 20018 San Sebastián, Spain
- Donostia International
Physics Center, Paseo Manuel Lardizábal
4, 20018 San Sebastián, Spain
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15
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Vacchi IA, Spinato C, Raya J, Bianco A, Ménard-Moyon C. Chemical reactivity of graphene oxide towards amines elucidated by solid-state NMR. NANOSCALE 2016; 8:13714-13721. [PMID: 27411370 DOI: 10.1039/c6nr03846h] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Graphene oxide (GO) is an attractive nanomaterial for many applications. Controlling the functionalization of GO is essential for the design of graphene-based conjugates with novel properties. But, the chemical composition of GO has not been fully elucidated yet. Due to the high reactivity of the oxygenated moieties, mainly epoxy, hydroxyl and carboxyl groups, several derivatization reactions may occur concomitantly. The reactivity of GO with amine derivatives has been exploited in the literature to design graphene-based conjugates, mainly through amidation. However, in this study we undoubtedly demonstrate using magic angle spinning (MAS) solid-state NMR that the reaction between GO and amine functions occurs via ring opening of the epoxides, and not by amidation. We also prove that there is a negligible amount of carboxylic acid groups in two GO samples obtained by a different synthesis process, hence eliminating the possibility of amidation reactions with amine derivatives. This work brings additional insights into the chemical reactivity of GO, which is fundamental to control its functionalization, and highlights the major role of MAS NMR spectroscopy for a comprehensive characterization of derivatized GO.
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Affiliation(s)
- Isabella A Vacchi
- CNRS, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique, 67000 Strasbourg, France.
| | - Cinzia Spinato
- CNRS, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique, 67000 Strasbourg, France.
| | - Jésus Raya
- Membrane Biophysics and NMR, Institute of Chemistry, UMR 7177, University of Strasbourg, Strasbourg, France
| | - Alberto Bianco
- CNRS, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique, 67000 Strasbourg, France.
| | - Cécilia Ménard-Moyon
- CNRS, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique, 67000 Strasbourg, France.
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16
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Lu H, Li C, Zhang B, Qiao X, Liu CY. Toward highly compressible graphene aerogels of enhanced mechanical performance with polymer. RSC Adv 2016. [DOI: 10.1039/c6ra04995h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The highly compressive durable graphene aerogels with enhanced strength was prepared by combining the freeze-casting process with the binding effect of polymer.
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Affiliation(s)
- Hao Lu
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing
| | - Chenwei Li
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing
| | - Baoqing Zhang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing
| | - Xin Qiao
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing
| | - Chen-Yang Liu
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing
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17
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Zwitterionic ring-opening polymerization for the facile, efficient and versatile grafting of functional polyethers onto graphene sheets. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.10.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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Bačová P, Rissanou AN, Harmandaris V. Edge-Functionalized Graphene as a Nanofiller: Molecular Dynamics Simulation Study. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01782] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Petra Bačová
- Institute
of Applied and Computational Mathematics (IACM), Foundation for Research and Technology Hellas (FORTH), GR-71110 Heraklion, Crete, Greece
| | - Anastassia N. Rissanou
- Institute
of Applied and Computational Mathematics (IACM), Foundation for Research and Technology Hellas (FORTH), GR-71110 Heraklion, Crete, Greece
| | - Vagelis Harmandaris
- Institute
of Applied and Computational Mathematics (IACM), Foundation for Research and Technology Hellas (FORTH), GR-71110 Heraklion, Crete, Greece
- Department
of Mathematics and Applied Mathematics, University of Crete, GR-71409 Heraklion, Crete, Greece
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19
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Barroso-Bujans F, Palomino P, Fernandez-Alonso F, Rudić S, Alegría A, Colmenero J, Enciso E. Intercalation and Confinement of Poly(ethylene oxide) in Porous Carbon Nanoparticles with Controlled Morphologies. Macromolecules 2014. [DOI: 10.1021/ma501607e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Fabienne Barroso-Bujans
- Centro de Física
de Materiales (CSIC-UPV/EHU)-Materials Physics Center, Paseo Manuel Lardizábal 5, 20018 San Sebastián, Spain
- Donostia International Physics Center, Paseo Manuel Lardizábal 4, 20018 San Sebastián, Spain
| | - Pablo Palomino
- Departamento de Química Física
I, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Felix Fernandez-Alonso
- ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, United Kingdom
- Department of Physics and Astronomy, University College London, Gower
Street, London WC1E 6BT, United Kingdom
| | - Svemir Rudić
- ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, United Kingdom
| | - Angel Alegría
- Centro de Física
de Materiales (CSIC-UPV/EHU)-Materials Physics Center, Paseo Manuel Lardizábal 5, 20018 San Sebastián, Spain
- Departamento de Física de Materiales, Universidad del País Vasco (UPV/EHU) Apartado 1072, 20080 San Sebastián, Spain
| | - Juan Colmenero
- Centro de Física
de Materiales (CSIC-UPV/EHU)-Materials Physics Center, Paseo Manuel Lardizábal 5, 20018 San Sebastián, Spain
- Donostia International Physics Center, Paseo Manuel Lardizábal 4, 20018 San Sebastián, Spain
- Departamento de Física de Materiales, Universidad del País Vasco (UPV/EHU) Apartado 1072, 20080 San Sebastián, Spain
| | - Eduardo Enciso
- Departamento de Química Física
I, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
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Samuel AZ, Umapathy S. Energy funneling and macromolecular conformational dynamics: a 2D Raman correlation study of PEG melting. Polym J 2014. [DOI: 10.1038/pj.2014.10] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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21
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Molecular dynamics simulation of adsorption of pyrene–polyethylene glycol onto graphene. J Colloid Interface Sci 2014; 418:66-73. [DOI: 10.1016/j.jcis.2013.12.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Revised: 11/27/2013] [Accepted: 12/03/2013] [Indexed: 11/22/2022]
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22
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Barroso-Bujans F, Cerveny S, Alegría Á, Colmenero J. Chain Length Effects on the Dynamics of Poly(ethylene oxide) Confined in Graphite Oxide: A Broadband Dielectric Spectroscopy Study. Macromolecules 2013. [DOI: 10.1021/ma401373p] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fabienne Barroso-Bujans
- Centro de Física de Materiales-Material Physics Center (CSIC-UPV/EHU), Paseo Manuel Lardizábal 5, 20018 San Sebastian, Spain
- Donostia International Physics Center (DIPC), Paseo Manuel Lardizábal 4, 20018 San Sebastian, Spain
| | - Silvina Cerveny
- Centro de Física de Materiales-Material Physics Center (CSIC-UPV/EHU), Paseo Manuel Lardizábal 5, 20018 San Sebastian, Spain
| | - Ángel Alegría
- Centro de Física de Materiales-Material Physics Center (CSIC-UPV/EHU), Paseo Manuel Lardizábal 5, 20018 San Sebastian, Spain
- Departamento
de Física de Materiales, Universidad del País Vasco (UPV/EHU), Apartado 1072, 20080 San Sebastian, Spain
| | - Juan Colmenero
- Centro de Física de Materiales-Material Physics Center (CSIC-UPV/EHU), Paseo Manuel Lardizábal 5, 20018 San Sebastian, Spain
- Donostia International Physics Center (DIPC), Paseo Manuel Lardizábal 4, 20018 San Sebastian, Spain
- Departamento
de Física de Materiales, Universidad del País Vasco (UPV/EHU), Apartado 1072, 20080 San Sebastian, Spain
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23
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Krutyeva M, Wischnewski A, Monkenbusch M, Willner L, Maiz J, Mijangos C, Arbe A, Colmenero J, Radulescu A, Holderer O, Ohl M, Richter D. Effect of nanoconfinement on polymer dynamics: surface layers and interphases. PHYSICAL REVIEW LETTERS 2013; 110:108303. [PMID: 23521308 DOI: 10.1103/physrevlett.110.108303] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Indexed: 05/26/2023]
Abstract
We present neutron spin echo experiments that address the much debated topic of dynamic phenomena in polymer melts that are induced by interacting with a confining surface. We find an anchored surface layer that internally is highly mobile and not glassy as heavily promoted in the literature. The polymer dynamics in confinement is, rather, determined by two phases, one fully equal to the bulk polymer and another that is partly anchored at the surface. By strong topological interaction, this phase confines further chains with no direct contact to the surface. These form the often invoked interphase, where the full chain relaxation is impeded through the interaction with the anchored chains.
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Affiliation(s)
- M Krutyeva
- Jülich Centre for Neutron Science and Institute for Complex Systems, Forschungszentrum Jülich GmbH, 52428 Jülich, Germany
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Garcia-Yoldi I, Álvarez F, Colmenero J. On the interactions between poly(ethylene oxide) and graphite oxide: A comparative study by different computational methods. J Chem Phys 2013; 138:094308. [DOI: 10.1063/1.4790169] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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25
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Barroso-Bujans F, Alegría A, Pomposo JA, Colmenero J. Thermal Stability of Polymers Confined in Graphite Oxide. Macromolecules 2013. [DOI: 10.1021/ma302407v] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fabienne Barroso-Bujans
- Centro de Física de Materiales-Material Physics Center (CSIC-UPV/EHU), Paseo Manuel Lardizábal 5, 20018 San Sebastián, Spain
| | - Angel Alegría
- Centro de Física de Materiales-Material Physics Center (CSIC-UPV/EHU), Paseo Manuel Lardizábal 5, 20018 San Sebastián, Spain
- Departamento de Física
de Materiales, Universidad del País Vasco (UPV/EHU), Apartado 1072, 20080 San Sebastián, Spain
| | - Jose A. Pomposo
- Centro de Física de Materiales-Material Physics Center (CSIC-UPV/EHU), Paseo Manuel Lardizábal 5, 20018 San Sebastián, Spain
- Departamento de Física
de Materiales, Universidad del País Vasco (UPV/EHU), Apartado 1072, 20080 San Sebastián, Spain
- IKERBASQUE-Basque Foundation for Science, Alameda Urquijo 36, 48011, Bilbao,
Spain, and
| | - Juan Colmenero
- Centro de Física de Materiales-Material Physics Center (CSIC-UPV/EHU), Paseo Manuel Lardizábal 5, 20018 San Sebastián, Spain
- Departamento de Física
de Materiales, Universidad del País Vasco (UPV/EHU), Apartado 1072, 20080 San Sebastián, Spain
- Donostia International Physics Center, Paseo Manuel Lardizábal 4, 20018
San Sebastián, Spain
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26
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Colmenero J, Arbe A. Recent progress on polymer dynamics by neutron scattering: From simple polymers to complex materials. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/polb.23178] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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