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Aghababaei Tafreshi O, Saadatnia Z, Ghaffari-Mosanenzadeh S, Kumar A, Salari M, Mohseni Taromsari S, Rastegardoost MM, Park CB, Naguib HE. Flexible, Thermally Stable, and Ultralightweight Polyimide-CNT Aerogel Composite Films for Energy Storage Applications. ACS APPLIED MATERIALS & INTERFACES 2023; 15:50360-50377. [PMID: 37847866 DOI: 10.1021/acsami.3c11539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
Polyimide (PI) aerogels are promising in various fields of application, ranging from thermal insulators to aerospace. However, they are typically in the form of a bulk monolith, which suffers from a lack of conformability and drapability. Moreover, their electrical conductivity is limited, and they mainly display an insulative behavior. These shortcomings can limit the applications of PI aerogels in energy storage systems, which require ultralightweight flexible conductive films, which at the same time offer high thermal stability, ultralow density, and high surface area. To overcome these obstacles, the present study reports the fabrication of PI-carbon nanotube (PI-CNT) aerogel composite films with varying CNT content prepared through a sol-gel preparation method, followed by a supercritical drying procedure. Compared to pristine PI aerogels, which displayed a large shrinkage and density of 18.3% and 0.12 g cm-3, respectively, the incorporation of only 5 wt % CNTs resulted in a significant reduction of both shrinkage and density to only 11.5% and 0.10 g cm-3, respectively. This suggests the importance of CNTs in improving the dimensional stability of aerogels and creating a robust network. Further characterizations showed that incorporation of 5 wt % CNTs also resulted in the highest pore volume (1.25 cm3 g-1), highest surface area (324 m2 g-1), highest real permittivity (80), highest electrical conductivity (3 × 10-1 S m-1), and ultrahigh service temperature (575 °C). It was also shown that the aerogel films can withstand a large degree of bending, can be twisted, and can be fully rolled with no obvious cracks propagated in the structure. The combined outstanding properties of the developed aerogel composite films make them promising potential candidates for supercapacitor electrodes. Therefore, the electrochemical performance of the devices based on aerogel electrodes was further studied. The device demonstrated a high energy density of 2.6 Wh kg-1 at a power density of 303.8 W kg-1. The total capacitance after 5000 cycles was 91.8% of the initial capacitance, which indicated excellent stability and durability of the device. Overall, this work provides a facile yet effective methodology for the development of high-performance aerogel materials for energy storage applications.
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Affiliation(s)
- Omid Aghababaei Tafreshi
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario M5S 3G8, Canada
| | - Zia Saadatnia
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario M5S 3G8, Canada
- Department of Mechanical and Manufacturing Engineering, Ontario Tech University, Oshawa, Ontario, L1G 0C5, Canada
| | | | - Ambrish Kumar
- Department of Materials Science and Engineering, University of Toronto, Toronto, Ontario M5S 3G8, Canada
| | - Meysam Salari
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario M5S 3G8, Canada
| | - Sara Mohseni Taromsari
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario M5S 3G8, Canada
| | | | - Chul B Park
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario M5S 3G8, Canada
| | - Hani E Naguib
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario M5S 3G8, Canada
- Department of Materials Science and Engineering, University of Toronto, Toronto, Ontario M5S 3G8, Canada
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 3G8, Canada
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2
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Salari M, Habibpour S, Hamidinejad M, Mohseni Taromsari S, Naguib HE, Yu A, Park CB. Enhanced electrical properties of microcellular polymer nanocomposites via nanocarbon geometrical alteration: a comparison of graphene nanoribbons and their parent multiwalled carbon nanotubes. MATERIALS HORIZONS 2023; 10:1392-1405. [PMID: 36752062 DOI: 10.1039/d2mh01303g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Geometric factors of nanofillers considerably govern the properties of conductive polymer composites (CPCs). This study provides insights into how geometrical alteration through nanotube-to-nanoribbon conversion affects the electrical properties of solid and microcellular CPCs. In this regard, polyvinylidene fluoride (PVDF)-based nanocomposites are synthesized using both the parent multi-walled carbon nanotube (MWCNT) and its chemically unzipped product, i.e., graphene nanoribbons (GNRs). Theoretical and experimental results show that GNR-based composites exhibit 1-4 orders greater conductivities than MWCNT-based composites at the same filler loading because of the larger number of filler-filler junctions as well as the significantly greater contact areas. On the other hand, the conductivities of MWCNT-based and GNR-based composites are significantly increased by 230 times and 121 times, respectively, through microcellular foaming. The effective rearrangements of rigid MWCNTs and flexible GNRs (having 4 and 5 orders less bending stiffness) for network formation during cellular growth are compared. The GNR-based composites also exhibit a superior dielectric permittivity (e.g., 2.6 times larger real permittivity at a representative frequency of 103 Hz and a nanofiller loading of 4.2 vol%) compared to their MWCNT-based counterparts. This study demonstrates how the modification of the carbon fillers and the polymer matrix can dramatically enhance EMI shielding.
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Affiliation(s)
- Meysam Salari
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, M5S 3G8, Canada.
| | - Saeed Habibpour
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, N2L 3G1, Canada
| | - Mahdi Hamidinejad
- Department of Mechanical Engineering, University of Alberta, 9211-116 Street NW, Edmonton, AB T6G1H9, Canada.
| | - Sara Mohseni Taromsari
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, M5S 3G8, Canada.
| | - Hani E Naguib
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, M5S 3G8, Canada.
| | - Aiping Yu
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, N2L 3G1, Canada
| | - Chul B Park
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, M5S 3G8, Canada.
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Androulaki K, Chrissopoulou K, Labardi M, Anastasiadis SH. Effect of interfacial interactions on static and dynamic behavior of hyperbranched polymers: Comparison between different layered nanoadditives. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123646] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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4
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Rolle K, Schilling T, Westermeier F, Das S, Breu J, Fytas G. Large T g Shift in Hybrid Bragg Stacks through Interfacial Slowdown. Macromolecules 2021; 54:2551-2560. [PMID: 33814616 PMCID: PMC8016143 DOI: 10.1021/acs.macromol.0c02818] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 02/06/2021] [Indexed: 11/29/2022]
Abstract
Studies of glass transition under confinement frequently employ supported polymer thin films, which are known to exhibit different transition temperature T g close to and far from the interface. Various techniques can selectively probe interfaces, however, often at the expense of sample designs very specific to a single experiment. Here, we show how to translate results on confined thin film T g to a "nacre-mimetic" clay/polymer Bragg stack, where periodicity allows to limit and tune the number of polymer layers to either one or two. Exceptional lattice coherence multiplies signal manifold, allowing for interface studies with both standard T g and broadband dynamic measurements. For the monolayer, we not only observe a dramatic increase in T g (∼ 100 K) but also use X-ray photon correlation spectroscopy (XPCS) to probe platelet dynamics, originating from interfacial slowdown. This is confirmed from the bilayer, which comprises both "bulk-like" and clay/polymer interface contributions, as manifested in two distinct T g processes. Because the platelet dynamics of monolayers and bilayers are similar, while the segmental dynamics of the latter are found to be much faster, we conclude that XPCS is sensitive to the clay/polymer interface. Thus, large T g shifts can be engineered and studied once lattice spacing approaches interfacial layer dimensions.
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Affiliation(s)
- Konrad Rolle
- Max-Planck-Institute
of Polymer Research, Ackermannweg 10, Mainz 55128, Germany
| | - Theresa Schilling
- Department
of Chemistry and Bavarian Polymer Institute, University of Bayreuth, Universitätsstr. 30, Bayreuth 95440, Germany
| | - Fabian Westermeier
- Deutsches
Elektronen Synchrotron DESY, Notkestr. 85, Hamburg D-22607, Germany
| | - Sudatta Das
- Max-Planck-Institute
of Polymer Research, Ackermannweg 10, Mainz 55128, Germany
| | - Josef Breu
- Department
of Chemistry and Bavarian Polymer Institute, University of Bayreuth, Universitätsstr. 30, Bayreuth 95440, Germany
| | - George Fytas
- Max-Planck-Institute
of Polymer Research, Ackermannweg 10, Mainz 55128, Germany
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5
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Foroozani Behbahani A, Harmandaris V. Gradient of Segmental Dynamics in Stereoregular Poly(Methyl Methacrylate) Melts Confined between Pristine or Oxidized Graphene Sheets. Polymers (Basel) 2021; 13:polym13050830. [PMID: 33800419 PMCID: PMC7962820 DOI: 10.3390/polym13050830] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 02/27/2021] [Accepted: 03/02/2021] [Indexed: 12/03/2022] Open
Abstract
Segmental dynamics in unentangled isotactic, syndiotactic, and atactic poly(methyl methacrylate) (i-, a-, and s-PMMA) melts confined between pristine graphene, reduced graphene oxide, RGO, or graphene oxide, GO, sheets is studied at various temperatures, well above glass transition temperature, via atomistic molecular dynamics simulations. The model RGO and GO sheets have different degrees of oxidization. The segmental dynamics is studied through the analysis of backbone torsional motions. In the vicinity of the model nanosheets (distances less than ≈2 nm), the dynamics slows down; the effect becomes significantly stronger with increasing the concentration of the surface functional groups, and hence increasing polymer/surface specific interactions. Upon decreasing temperature, the ratios of the interfacial segmental relaxation times to the respective bulk relaxation times increase, revealing the stronger temperature dependence of the interfacial segmental dynamics relative to the bulk dynamics. This heterogeneity in temperature dependence leads to the shortcoming of the time-temperature superposition principle for describing the segmental dynamics of the model confined melts. The alteration of the segmental dynamics at different distances, d, from the surfaces is described by a temperature shift, ΔTseg(d) (roughly speaking, shift of a characteristic temperature). Next, to a given nanosheet, i-PMMA has a larger value of ΔTseg than a-PMMA and s-PMMA. This trend correlates with the better interfacial packing and longer trains of i-PMMA chains. The backbone torsional autocorrelation functions are shown in the frequency domain and are qualitatively compared to the experimental dielectric loss spectra for the segmental α-relaxation in polymer nanocomposites. The εT″(f) (analogous of dielectric loss, ε″(f), for torsional motion) curves of the model confined melts are broader (toward lower frequencies) and have lower amplitudes relative to the corresponding bulk curves; however, the peak frequencies of the εT″(f) curves are only slightly affected.
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Affiliation(s)
- Alireza Foroozani Behbahani
- Institute of Applied and Computational Mathematics, Foundation for Research and Technology-Hellas, GR-71110 Heraklion, Greece
- Correspondence: (A.F.B.); (V.H.)
| | - Vagelis Harmandaris
- Institute of Applied and Computational Mathematics, Foundation for Research and Technology-Hellas, GR-71110 Heraklion, Greece
- Department of Mathematics and Applied Mathematics, University of Crete, GR-70013 Heraklion, Greece
- Computation-Based Science and Technology Research Center, The Cyprus Institute, 2121 Nicosia, Cyprus
- Correspondence: (A.F.B.); (V.H.)
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6
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Zhou M, Liu J, Hou G, Yang H, Zhang L. Study on structures, dynamics and mechanical properties of styrene butadiene rubber (SBR)/silica interfaces: A fully atomistic molecular dynamics. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123523] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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7
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Liu C, Daneshvar F, Hawkins S, Kotaki M, Sue H. High dielectric constant epoxy nanocomposites containing
ZnO
quantum dots decorated carbon nanotube. J Appl Polym Sci 2021. [DOI: 10.1002/app.49778] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Cong Liu
- Polymer Technology Center, Department of Material Science and Engineering Texas A&M University College Station Texas USA
| | - Farhad Daneshvar
- Polymer Technology Center, Department of Material Science and Engineering Texas A&M University College Station Texas USA
| | | | - Masaya Kotaki
- Kaneka US Materials Research Center Fremont California USA
| | - Hung‐Jue Sue
- Polymer Technology Center, Department of Material Science and Engineering Texas A&M University College Station Texas USA
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8
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Jinitha TV, Safna Hussan KP, Mohamed Shahin T, Purushothaman E. The interplay between the fragility and mechanical properties of styrene–butadiene rubber composites with unmodified and modified sago seed shell powder. J Appl Polym Sci 2020. [DOI: 10.1002/app.49180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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9
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Liu C, Zhang T, Daneshvar F, Feng S, Zhu Z, Kotaki M, Mullins M, Sue HJ. High dielectric constant epoxy nanocomposites based on metal organic frameworks decorated multi-walled carbon nanotubes. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122913] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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10
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Park J, Sharma J, Monaghan KW, Meyer HM, Cullen DA, Rossy AM, Keum JK, Wood DL, Polizos G. Styrene-Based Elastomer Composites with Functionalized Graphene Oxide and Silica Nanofiber Fillers: Mechanical and Thermal Conductivity Properties. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1682. [PMID: 32867130 PMCID: PMC7559061 DOI: 10.3390/nano10091682] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 02/06/2023]
Abstract
The mechanical and thermal conductivity properties of two composite elastomers were studied. Styrene-butadiene rubber (SBR) filled with functionalized graphene oxide (GO) and silica nanofibers, and styrene-butadiene-styrene (SBS) block copolymers filled with graphene oxide. For the SBR composites, GO fillers with two different surface functionalities were synthesized (cysteamine and dodecylamine) and dispersed in the SBR using mechanical and liquid mixing techniques. The hydrophilic cysteamine-based GO fillers were dispersed in the SBR by mechanical mixing, whereas the hydrophobic dodecylamine-based GO fillers were dispersed in the SBR by liquid mixing. Silica nanofibers (SnFs) were fabricated by electrospinning a sol-gel precursor solution. The surface chemistry of the functionalized fillers was studied in detail. The properties of the composites and the synergistic improvements between the GO and SnFs are presented. For the SBS composites, GO fillers were dispersed in the SBS elastomer at several weight percent loadings using liquid mixing. Characterization of the filler material and the composite elastomers was performed using x-ray photoelectron spectroscopy, x-ray diffraction, transmission electron microscopy, scanning electron microscopy, thermogravimetric analysis, dynamic mechanical analysis, tensile testing, nanoindentation, thermal conductivity and abrasion testing.
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Affiliation(s)
- Jaehyeung Park
- Energy and Transportation Science Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA; (J.P.); (J.S.); (D.L.W.III)
- Department of Bio-Fibers and Materials Science, Kyungpook National University, Daegu 41566, Korea
| | - Jaswinder Sharma
- Energy and Transportation Science Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA; (J.P.); (J.S.); (D.L.W.III)
| | - Kyle W. Monaghan
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA; (K.W.M.); (A.M.R.)
| | - Harry M. Meyer
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA; (H.M.M.III); (D.A.C.)
| | - David A. Cullen
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA; (H.M.M.III); (D.A.C.)
| | - Andres M. Rossy
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA; (K.W.M.); (A.M.R.)
| | - Jong K. Keum
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA;
| | - David L. Wood
- Energy and Transportation Science Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA; (J.P.); (J.S.); (D.L.W.III)
| | - Georgios Polizos
- Energy and Transportation Science Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA; (J.P.); (J.S.); (D.L.W.III)
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11
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Behbahani AF, Rissanou A, Kritikos G, Doxastakis M, Burkhart C, Polińska P, Harmandaris VA. Conformations and Dynamics of Polymer Chains in Cis and Trans Polybutadiene/Silica Nanocomposites through Atomistic Simulations: From the Unentangled to the Entangled Regime. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01030] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Alireza F. Behbahani
- Institute of Applied and Computational Mathematics, Foundation for Research and Technology—Hellas, Heraklion GR-71110, Greece
| | - Anastassia Rissanou
- Institute of Applied and Computational Mathematics, Foundation for Research and Technology—Hellas, Heraklion GR-71110, Greece
| | - Giorgos Kritikos
- Institute of Applied and Computational Mathematics, Foundation for Research and Technology—Hellas, Heraklion GR-71110, Greece
| | - Manolis Doxastakis
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Craig Burkhart
- The Goodyear Tire and Rubber Company, 142 Goodyear Blvd., Akron, Ohio 44305, United States
| | | | - Vagelis A. Harmandaris
- Institute of Applied and Computational Mathematics, Foundation for Research and Technology—Hellas, Heraklion GR-71110, Greece
- Department of Mathematics and Applied Mathematics, University of Crete, Heraklion GR-71110, Greece
- Computation-Based Science and Technology Research Center, The Cyprus Institute, Nicosia 2121, Cyprus
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12
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Mao HJ, Liu DF, Zhang N, Huang T, Kühnert I, Yang JH, Wang Y. Constructing a Microcapacitor Network of Carbon Nanotubes in Polymer Blends via Crystallization-Induced Phase Separation Toward High Dielectric Constant and Low Loss. ACS APPLIED MATERIALS & INTERFACES 2020; 12:26444-26454. [PMID: 32425040 DOI: 10.1021/acsami.0c04575] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Tailoring the distribution of nanoparticles and further constructing effective microcapacitors in polymer blends are important issues for developing high-performance polymer dielectric nanocomposites. The common method to control the selective localization of nanoparticles in an immiscible polymer blend is relatively difficult and it easily results in the accumulation of nanoparticles in one component, which usually leads to a dramatic increase of the dielectric loss in the nanocomposites. In this work, a novel strategy based on step-by-step crystallization has been proposed to tailor the refined distribution and dispersion of carbon nanotubes (CNTs) in a melt-miscible blend poly(butylene succinate)/poly(vinylidene fluoride) (PBS/PVDF) through the crystallization-induced phase separation and the engineered interfacial affinity between CNTs and polymer components to acquire high dielectric constant and low dielectric loss. The results reveal that PBS is excluded along the growth front of PVDF spherulites and locates in the margin areas of PVDF spherulites during the step-by-step crystallization process. Moreover, because of the higher interfacial interaction between CNTs and PBS, CNTs are located in the PBS-rich domain, resulting in a high concentration of CNTs in the interspherulites of PVDF. Thus, the dielectric constants of the nanocomposites are greatly improved by nearly 5-24 times compared with the nanocomposites achieved by quick cooling and, simultaneously, the dielectric loss of the nanocomposites is still maintained at a low level. This work shows that the step-by-step crystallization method can be used to fabricate the nanocomposites with a synergistic increase in the dielectric performance due to the formation of a refined microcapacitor assembly. To the best of our knowledge, this is the first report to show that the dielectric constant of the nanocomposites can be greatly enhanced just through the crystallization-optimized distribution and dispersion of CNTs in immiscible polymer blends, and it possibly gives a new technical route for the fabrication of advanced dielectric composites.
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Affiliation(s)
- Han-Jun Mao
- School of Materials Science and Engineering, Key Laboratory of Advanced Technologies of Materials (Ministry of Education), Southwest Jiaotong University, Erhuan Road, North I, No. 111, Chengdu, Sichuan 610031, China
| | - Dan-Feng Liu
- School of Materials Science and Engineering, Key Laboratory of Advanced Technologies of Materials (Ministry of Education), Southwest Jiaotong University, Erhuan Road, North I, No. 111, Chengdu, Sichuan 610031, China
| | - Nan Zhang
- School of Materials Science and Engineering, Key Laboratory of Advanced Technologies of Materials (Ministry of Education), Southwest Jiaotong University, Erhuan Road, North I, No. 111, Chengdu, Sichuan 610031, China
| | - Ting Huang
- School of Materials Science and Engineering, Key Laboratory of Advanced Technologies of Materials (Ministry of Education), Southwest Jiaotong University, Erhuan Road, North I, No. 111, Chengdu, Sichuan 610031, China
| | - Ines Kühnert
- Institute of Polymer Materials, Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Str. 6, Dresden D-01069, Germany
| | - Jing-Hui Yang
- School of Materials Science and Engineering, Key Laboratory of Advanced Technologies of Materials (Ministry of Education), Southwest Jiaotong University, Erhuan Road, North I, No. 111, Chengdu, Sichuan 610031, China
| | - Yong Wang
- School of Materials Science and Engineering, Key Laboratory of Advanced Technologies of Materials (Ministry of Education), Southwest Jiaotong University, Erhuan Road, North I, No. 111, Chengdu, Sichuan 610031, China
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13
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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]
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14
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Dielectric Relaxation Dynamics of Clay‐Containing Low‐Density polyethylene Blends and Nanocomposites. POLYM ENG SCI 2020. [DOI: 10.1002/pen.25352] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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15
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Giving a Second Opportunity to Tire Waste: An Alternative Path for the Development of Sustainable Self-Healing Styrene-Butadiene Rubber Compounds Overcoming the Magic Triangle of Tires. Polymers (Basel) 2019; 11:polym11122122. [PMID: 31861160 PMCID: PMC6960816 DOI: 10.3390/polym11122122] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 12/11/2019] [Accepted: 12/13/2019] [Indexed: 11/17/2022] Open
Abstract
Current regulations demand tires with long lifetime and reduced fuel consumption without sacrificing car safety. However, tire technology still needs to reach a suitable balance between these three indicators. Here, we address them by developing a self-healing tire compound using styrene-butadiene rubber (SBR) as the matrix and reclaimed tire waste as the sustainable filler. The addition of ground tire rubber (GTR) to the matrix simultaneously improved the rolling resistance and maintained both wet grip and healing ability. We provide an in-depth analysis of the healing behavior of the material at a scale close to the relevant molecular processes through a systematic dynamic-mechanical and dielectric analysis. We found that SBR and SBR/GTR compounds show a complete recovery of stiffness and relaxation dynamics after being damaged by cyclic deformation, resulting in a heterogeneous repaired rubber network. This new development could well overcome the so-called magic triangle of tires, which is certainly one of the key objectives of the tire industry.
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16
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Hamidinejad M, Zandieh A, Lee JH, Papillon J, Zhao B, Moghimian N, Maire E, Filleter T, Park CB. Insight into the Directional Thermal Transport of Hexagonal Boron Nitride Composites. ACS APPLIED MATERIALS & INTERFACES 2019; 11:41726-41735. [PMID: 31610650 DOI: 10.1021/acsami.9b16070] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Ideal dielectric materials for microelectronic devices should have high directionally tailored thermoconductivity with low dielectric constant and loss. Hexagonal boron nitride (hBN) with excellent thermal and dielectric properties shows a promise for the fabrication of thermoconductive dielectric polymer composites. Herein, a simple method for the fabrication of lightweight polymer/hBN composites with high directionally tailored thermoconductivity and excellent dielectric properties is presented. The solid polymer/hBN composites are manufactured by melt-compounding and injection molding. The porous composites are successfully manufactured in an injection molding process through supercritical fluid (SCF) foaming. X-ray tomography provides direct visualization of the internal microstructure and hBN orientation, leading to an in-depth understanding of the directionally dependent thermoconductivity of the polymer/hBN composite. Shear-induced orientation of hBN platelets in the solid HDPE/hBN composites leads to a significant anisotropic thermal conductivity. The solid HDPE/23.2 vol % hBN composites show an in-plane thermoconductivity as high as 10.1 W m-1 K-1, whereas the through-plane thermoconductivity is limited to 0.28 W m-1 K-1. However, the generation of a porous structure via SCF foaming imparts in situ exfoliation, random orientation, and interconnectivity of hBN platelets within the polymer matrix. This results in highly isotropic thermoconductivity with higher bulk thermal conductivity in the lightweight porous composites as compared to their solid counterparts. Furthermore, the electrically insulating composites developed in this study exhibit low dielectric constant and ultralow dielectric loss. Thus, this study presents a simple fabrication method to develop lightweight dielectric materials with tailored thermal conductivity for modern electronics.
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Affiliation(s)
- Mahdi Hamidinejad
- Department of Mechanical and Industrial Engineering , University of Toronto , 5 King's College Road , Toronto M5S 3G8 , Canada
| | - Azadeh Zandieh
- Department of Mechanical and Industrial Engineering , University of Toronto , 5 King's College Road , Toronto M5S 3G8 , Canada
| | - Jung H Lee
- Department of Mechanical and Industrial Engineering , University of Toronto , 5 King's College Road , Toronto M5S 3G8 , Canada
| | - Justine Papillon
- University of Lyon, INSA de Lyon , MATEIS UMR CNRS 5510, Bât. Saint Exupery, 23 Av. Jean Capelle , F-69621 Villeurbanne , France
| | - Biao Zhao
- Department of Mechanical and Industrial Engineering , University of Toronto , 5 King's College Road , Toronto M5S 3G8 , Canada
| | - Nima Moghimian
- NanoXplore Inc. , 25 Boul. Montpellier , Saint-Laurent , Quebec H4N 2G3 , Canada
| | - Eric Maire
- University of Lyon, INSA de Lyon , MATEIS UMR CNRS 5510, Bât. Saint Exupery, 23 Av. Jean Capelle , F-69621 Villeurbanne , France
| | - Tobin Filleter
- Department of Mechanical and Industrial Engineering , University of Toronto , 5 King's College Road , Toronto M5S 3G8 , Canada
| | - Chul B Park
- Department of Mechanical and Industrial Engineering , University of Toronto , 5 King's College Road , Toronto M5S 3G8 , Canada
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17
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Androulaki K, Chrissopoulou K, Prevosto D, Labardi M, Anastasiadis SH. Structure and Dynamics of Biobased Polyester Nanocomposites. Biomacromolecules 2019; 20:164-176. [PMID: 30485746 DOI: 10.1021/acs.biomac.8b01231] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The structure and the dynamics of two bio-based polyester polyols are investigated in the bulk and close to surfaces in polymer/layered silicate nanocomposites. The morphology of the neat polymers as well as the structure of the nanohybrids are investigated with X-ray diffraction and their thermal properties are studied by differential scanning calorimetry. One of the investigated polyesters is amorphous, whereas the second one is a semicrystalline polymer with intriguing thermal behavior. Hybrids have been synthesized over a broad range of compositions and intercalated structures are always obtained. The thermal transitions in the nanocomposites are observed only when the polymers are in excess outside the completely filled galleries. The glass transition, whenever it can be resolved, appears insensitive to the presence of the inorganic material, whereas the way the crystallization takes place depends on the composition of the nanohybrid. Dielectric relaxation spectroscopy was utilized to study the polymer dynamics. It revealed multiple relaxation processes for the neat polymers both below and above their glass transition temperatures, whereas in the nanocomposites, similarities and differences are observed depending on the specific mode of the dynamic process.
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Affiliation(s)
- Krystalenia Androulaki
- 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
| | - Kiriaki Chrissopoulou
- Institute of Electronic Structure and Laser , Foundation for Research and Technology - Hellas , P.O. Box 1527, 711 10 Heraklion Crete , Greece
| | - Daniele Prevosto
- CNR-IPCF, Department of Physics , University of Pisa , 56126 Pisa , Italy
| | | | - 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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18
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Trazkovich AJ, Wendt MF, Hall LM. Effect of Copolymer Sequence on Local Viscoelastic Properties near a Nanoparticle. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b02136] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Alex J. Trazkovich
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 140 W 19th Ave., Columbus, Ohio 43210, United States
- Cooper Tire & Rubber Company, 701 Lima Ave., Findlay, Ohio 45840, United States
| | - Mitchell F. Wendt
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 140 W 19th Ave., Columbus, Ohio 43210, United States
| | - Lisa M. Hall
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 140 W 19th Ave., Columbus, Ohio 43210, United States
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19
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Hamidinejad M, Zhao B, Zandieh A, Moghimian N, Filleter T, Park CB. Enhanced Electrical and Electromagnetic Interference Shielding Properties of Polymer-Graphene Nanoplatelet Composites Fabricated via Supercritical-Fluid Treatment and Physical Foaming. ACS APPLIED MATERIALS & INTERFACES 2018; 10:30752-30761. [PMID: 30124039 DOI: 10.1021/acsami.8b10745] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Lightweight high-density polyethylene (HDPE)-graphene nanoplatelet (GnP) composite foams were fabricated via a supercritical-fluid (SCF) treatment and physical foaming in an injection-molding process. We demonstrated that the introduction of a microcellular structure can substantially increase the electrical conductivity and can decrease the percolation threshold of the polymer-GnP composites. The nanocomposite foams had a significantly higher electrical conductivity, a higher dielectric constant, a higher electromagnetic interference (EMI) shielding effectiveness (SE), and a lower percolation threshold compared to their regular injection-molded counterparts. The SCF treatment and foaming exfoliated the GnPs in situ during the fabrication process. This process also changed the GnP's flow-induced arrangement by reducing the melt viscosity and cellular growth. Moreover, the generation of a cellular structure rearranged the GnPs to be mainly perpendicular to the radial direction of the bubble growth. This enhanced the GnP's interconnectivity and produced a unique GnP arrangement around the cells. Therefore, the through-plane conductivity increased up to a maximum of 9 orders of magnitude and the percolation threshold decreased by up to 62%. The lightweight injection-molded nanocomposite foams of 9.8 vol % GnP exhibited a real permittivity of ε' = 106.4, which was superior to that of their regular injection-molded (ε' = 6.2). A maximum K-band EMI SE of 31.6 dB was achieved in HDPE-19 vol % GnP composite foams, which was 45% higher than that of the solid counterpart. In addition, the physical foaming reduced the density of the HDPE-GnP foams by up to 26%. Therefore, the fabricated polymer-GnP nanocomposite foams in this study pointed toward the further development of lightweight and conductive polymer-GnP composites with tailored properties.
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Affiliation(s)
| | | | | | - Nima Moghimian
- NanoXplore Inc. , 25 Boul. Montpellier , Saint-Laurent , Quebec H4N 2G3 , Canada
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20
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Wei Y, Wu H, Weng G, Zhang Y, Cao X, Gu Z, Liu Y, Liu R, Zhou Z, Nie Y. Effect of interface on bulk polymer: control of glass transition temperature of rubber. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1566-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Hamidinejad M, Zhao B, Chu RKM, Moghimian N, Naguib HE, Filleter T, Park CB. Ultralight Microcellular Polymer-Graphene Nanoplatelet Foams with Enhanced Dielectric Performance. ACS APPLIED MATERIALS & INTERFACES 2018; 10:19987-19998. [PMID: 29745647 DOI: 10.1021/acsami.8b03777] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Dielectric polymer nanocomposites with high dielectric constant (ε') and low dielectric loss (tan δ) are extremely desirable in the electronics industry. Percolative polymer-graphene nanoplatelet (GnP) composites have shown great promise as dielectric materials for high-performance capacitors. Herein, an industrially-viable technique for manufacturing a new class of ultralight polymer composite foams using commercial GnPs with excellent dielectric performance is presented. Using this method, the high-density polyethylene (HDPE)-GnPs composites with a microcellular structure were fabricated by melt-mixing. This was followed by supercritical fluid (SCF) treatment and physical foaming in an extrusion process, which added an extra layer of design flexibility. The SCF treatment effectively in situ exfoliated the GnPs in the polymer matrix. Moreover, the generation of a microcellular structure produced numerous parallel-plate nanocapacitors consisting of GnP pairs as electrodes with insulating polymer as nanodielectrics. This significantly increased the real permittivity and decreased the dielectric loss. The ultralight extruded HDPE-1.08 vol % GnP composite foams, with a 0.15 g·cm-3 density, had an excellent combination of dielectric properties (ε' = 77.5, tan δ = 0.003 at 1 × 105 Hz), which were superior to their compression-molded counterparts (ε' = 19.9, tan δ = 0.15 and density of = 1.2 g·cm-3) and to those reported in the literature. This dramatic improvement resulted from in situ GnP's exfoliation and dispersion, as well as a unique GnP parallel-plate arrangement around the cells. Thus, this facile method provides a scalable method to produce ultralight dielectric polymer nanocomposites, with a microscopically tailored microstructure for use in electronic devices.
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Affiliation(s)
| | | | | | - Nima Moghimian
- NanoXplore Inc. , 25 Boul. Montpellier , Saint-Laurent , Quebec H4N 2G3 , Canada
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22
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Ning N, Mi T, Chu G, Zhang LQ, Liu L, Tian M, Yu HT, Lu YL. A quantitative approach to study the interface of carbon nanotubes/elastomer nanocomposites. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.03.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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23
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Evangelopoulos AEAS, Rissanou AN, Glynos E, Bitsanis IA, Anastasiadis SH, Koutsos V. Wetting Behavior of Polymer Droplets: Effects of Droplet Size and Chain Length. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Apostolos E. A. S. Evangelopoulos
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, King’s Buildings, Edinburgh EH9 3FB, United Kingdom
- School of Mathematical and Physical Sciences, University of Reading, Reading RG6 6AX, United Kingdom
| | - Anastassia N. Rissanou
- Institute of Applied and Computational Mathematics (IACM), Foundation for Research and Technology Hellas (FORTH), GR-71110 Heraklion, Crete, Greece
| | - Emmanouil Glynos
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, P.O.
Box 1527, 711 10 Heraklion Crete, Greece
| | - Ioannis A. Bitsanis
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, P.O.
Box 1527, 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
- Department of Chemistry, University of Crete, P.O. Box 2208, 710 03 Heraklion Crete, Greece
| | - Vasileios Koutsos
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, King’s Buildings, Edinburgh EH9 3FB, United Kingdom
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24
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Helal E, Amurin L, Carastan D, de Sousa R, David E, Fréchette M, Demarquette N. Tuning the mechanical and dielectric properties of clay-containing thermoplastic elastomer nanocomposites. POLYM ENG SCI 2018. [DOI: 10.1002/pen.24844] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- E. Helal
- Mechanical Engineering Department; École de Technologie Supérieure; Montréal Quebec Canada
| | - L.G. Amurin
- Mechanical Engineering Department; École de Technologie Supérieure; Montréal Quebec Canada
| | - D.J. Carastan
- Center for Engineering, Modeling and Applied Social Sciences; Federal University of ABC; Santo André Sao Paulo Brazil
| | - R.R. de Sousa
- Center for Engineering, Modeling and Applied Social Sciences; Federal University of ABC; Santo André Sao Paulo Brazil
| | - E. David
- Mechanical Engineering Department; École de Technologie Supérieure; Montréal Quebec Canada
| | - M. Fréchette
- Institut de Recherche d'Hydro-Québec; Varennes Quebec Canada
| | - N.R. Demarquette
- Mechanical Engineering Department; École de Technologie Supérieure; Montréal Quebec Canada
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25
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Klonos P, Sulym IY, Sternik D, Konstantinou P, Goncharuk OV, Deryło–Marczewska A, Gun'ko VM, Kyritsis A, Pissis P. Morphology, crystallization and rigid amorphous fraction in PDMS adsorbed onto carbon nanotubes and graphite. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.02.020] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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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
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27
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Regitsky AU, Keshavarz B, McKinley GH, Holten-Andersen N. Rheology as a Mechanoscopic Method to Monitor Mineralization in Hydrogels. Biomacromolecules 2017; 18:4067-4074. [DOI: 10.1021/acs.biomac.7b01129] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Abigail U. Regitsky
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Bavand Keshavarz
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Gareth H. McKinley
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Niels Holten-Andersen
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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28
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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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29
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New evidence disclosed for the engineered strong interfacial interaction of graphene/rubber nanocomposites. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.04.056] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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30
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31
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Klonos P, Kyritsis A, Bokobza L, Gun’ko VM, Pissis P. Interfacial effects in PDMS/titania nanocomposites studied by thermal and dielectric techniques. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2016.04.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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32
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Hao T, Zhou Z, Wang Y, Liu Y, Zhang D, Nie Y, Wei Y, Li S. Segmental dynamics in interfacial region of composite materials. MONATSHEFTE FUR CHEMIE 2017. [DOI: 10.1007/s00706-017-1917-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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33
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Klonos P, Pissis P. Effects of interfacial interactions and of crystallization on rigid amorphous fraction and molecular dynamics in polylactide/silica nanocomposites: A methodological approach. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.02.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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34
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Helal E, Amurin L, Carastan D, de Sousa R, David E, Fréchette M, Demarquette N. Interfacial molecular dynamics of styrenic block copolymer-based nanocomposites with controlled spatial distribution. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.02.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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35
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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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36
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Cao J, Zuo Y, Wang D, Zhang J, Feng S. Functional polysiloxanes: a novel synthesis method and hydrophilic applications. NEW J CHEM 2017. [DOI: 10.1039/c7nj01294b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesized polysiloxanes are used for SBS hydrophilic modification and hydrophilic blue-light-emitting silicone elastomer synthesis via a thiol–ene click reaction.
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Affiliation(s)
- Jinfeng Cao
- Key Laboratory of Special Functional Aggregated Materials & Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
| | - Yujing Zuo
- Key Laboratory of Special Functional Aggregated Materials & Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
| | - Dengxu Wang
- Key Laboratory of Special Functional Aggregated Materials & Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
| | - Jie Zhang
- Key Laboratory of Special Functional Aggregated Materials & Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
| | - Shengyu Feng
- Key Laboratory of Special Functional Aggregated Materials & Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
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37
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Klonos P, Terzopoulou Z, Koutsoumpis S, Zidropoulos S, Kripotou S, Papageorgiou GZ, Bikiaris DN, Kyritsis A, Pissis P. Rigid amorphous fraction and segmental dynamics in nanocomposites based on poly(l–lactic acid) and nano-inclusions of 1–3D geometry studied by thermal and dielectric techniques. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.07.002] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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38
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Wu S, Zhang L, Weng P, Yang Z, Tang Z, Guo B. Correlating synergistic reinforcement with chain motion in elastomer/nanocarbon hybrids composites. SOFT MATTER 2016; 12:6893-6901. [PMID: 27387393 DOI: 10.1039/c6sm01116k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The strategy of using hybrid fillers with different geometric shapes and aspect ratios has been established to be an efficient way to achieve high-performance polymer composites. While, in spite of the recently renowned advances in this field, the mechanism of synergistic behavior in the system is still unclear and equivocal. In this study, we systematically investigated the mechanism for the synergistic reinforcement in an elastomer reinforced by nanocarbon hybrids consisting of 2D reduced graphene oxide (rGO) and 1D carbon nanotubes (CNTs). The improved dispersion state of hybrid filler was attested by Raman, UV-Vis spectra and morphological observations. In addition to the phenomenological evidences, we substantiated a stronger confinement effect of hybrid network on chain dynamics, for the first time, with molecular concepts by dielectric relaxation analysis. The formation of a glassy interphase with orders of magnitude slower chain dynamics than that for bulk chains has been explicitly demonstrated in the hybrid system. Besides improved dispersion upon hybridization, it is believed the formation of a glassy interphase is another crucial factor in governing the synergistic reinforcement capability of hybrid composites. We envision this new finding provides significant insight into the mechanism of synergistic behavior in hybrid-filled polymer composites with molecular concepts.
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Affiliation(s)
- Siwu Wu
- Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China.
| | - Liqun Zhang
- State Key Laboratory of Organic/Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Peijin Weng
- Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China.
| | - Zhijun Yang
- Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China.
| | - Zhenghai Tang
- Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China.
| | - Baochun Guo
- Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China.
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39
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Structure-properties investigations in hydrophilic nanocomposites based on polyurethane/poly(2-hydroxyethyl methacrylate) semi-interpenetrating polymer networks and nanofiller densil for biomedical application. J Appl Polym Sci 2015. [DOI: 10.1002/app.43122] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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40
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Koerner H, Opsitnick E, Grabowski CA, Drummy LF, Hsiao MS, Che J, Pike M, Person V, Bockstaller MR, Meth JS, Vaia RA. Physical aging and glass transition of hairy nanoparticle assemblies. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/polb.23931] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hilmar Koerner
- Materials and Manufacturing Directorate; Air Force Research Laboratory, Wright Patterson Air Force Base; Ohio 45433-7750
| | - Elizabeth Opsitnick
- Materials and Manufacturing Directorate; Air Force Research Laboratory, Wright Patterson Air Force Base; Ohio 45433-7750
| | - Christopher A. Grabowski
- Materials and Manufacturing Directorate; Air Force Research Laboratory, Wright Patterson Air Force Base; Ohio 45433-7750
| | - Larry F. Drummy
- Materials and Manufacturing Directorate; Air Force Research Laboratory, Wright Patterson Air Force Base; Ohio 45433-7750
| | - Ming-Siao Hsiao
- Materials and Manufacturing Directorate; Air Force Research Laboratory, Wright Patterson Air Force Base; Ohio 45433-7750
| | - Justin Che
- Materials and Manufacturing Directorate; Air Force Research Laboratory, Wright Patterson Air Force Base; Ohio 45433-7750
| | - Megan Pike
- Materials and Manufacturing Directorate; Air Force Research Laboratory, Wright Patterson Air Force Base; Ohio 45433-7750
| | - Vernecia Person
- Department of Chemistry; Clark Atlanta University; SW Atlanta Georgia 30314
| | - Michael R. Bockstaller
- Department of Materials Science and Engineering; Carnegie Mellon University; Pittsburgh Pennsylvania 15213
| | - Jeff S. Meth
- DuPont Central Research and Development; E.I. DuPont De Nemours; Wilmington Delaware 19803
| | - Richard A. Vaia
- Materials and Manufacturing Directorate; Air Force Research Laboratory, Wright Patterson Air Force Base; Ohio 45433-7750
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41
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The glass transition, segmental relaxations and viscoelastic behaviour of particulate-reinforced natural rubber. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.03.024] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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42
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Chrissopoulou K, Anastasiadis SH. Effects of nanoscopic-confinement on polymer dynamics. SOFT MATTER 2015; 11:3746-3766. [PMID: 25869864 DOI: 10.1039/c5sm00554j] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The static and dynamic behavior of polymers in confinement close to interfaces can be very different from that in the bulk. Among the various geometries, intercalated nanocomposites, in which polymer films of ∼1 nm thickness reside between the parallel inorganic surfaces of layered silicates in a well-ordered multilayer, offer a unique avenue for the investigation of the effects of nanoconfinement on polymer structure and dynamics by utilizing conventional analytical techniques and macroscopic specimens. In this article, we provide a review of research activities mainly in our laboratory on polymer dynamics under severe confinement utilizing different polymer systems: polar and non-polar polymers were mixed with hydrophilic or organophilic silicates, respectively, whereas hyperbranched polymers were studied in an attempt to probe the effect of polymer-surface interactions by altering the number and the kinds of functional groups in the periphery of the branched polymers. The polymer dynamics was probed by quasielastic neutron scattering and dielectric relaxation spectroscopy and was compared with that of the polymers in the bulk. In all cases, very local sub-Tg processes related to the motion of side and/or end groups as well as the segmental α-relaxation were identified with distinct differences recorded between the bulk and the confined systems. Confinement was found not to affect the very local motion in the case of the linear chains whereas it made it easier for hyperbranched polymers due to modifications of the hydrogen bond network. The segmental relaxation in confinement becomes faster than that in the bulk, exhibits Arrhenius temperature dependence and is observed even below the bulk Tg due to reduced cooperativity in the confined systems.
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Affiliation(s)
- Kiriaki Chrissopoulou
- Institute of Electronic Structure and Laser, Foundation for Research and Technology - Hellas, P. O. Box 1527, 711 10 Heraklion Crete, Greece.
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43
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Helal E, Demarquette N, Amurin L, David E, Carastan D, Fréchette M. Styrenic block copolymer-based nanocomposites: Implications of nanostructuration and nanofiller tailored dispersion on the dielectric properties. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.03.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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44
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Interfacial interactions and complex segmental dynamics in systems based on silica-polydimethylsiloxane core–shell nanoparticles: Dielectric and thermal study. POLYMER 2015. [DOI: 10.1016/j.polymer.2014.12.037] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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45
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Sarkar B, Alexandridis P. Block copolymer–nanoparticle composites: Structure, functional properties, and processing. Prog Polym Sci 2015. [DOI: 10.1016/j.progpolymsci.2014.10.009] [Citation(s) in RCA: 180] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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46
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Tang Z, Zhang L, Feng W, Guo B, Liu F, Jia D. Rational Design of Graphene Surface Chemistry for High-Performance Rubber/Graphene Composites. Macromolecules 2014. [DOI: 10.1021/ma502201e] [Citation(s) in RCA: 148] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zhenghai Tang
- Department
of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Liqun Zhang
- State Key Laboratory of Organic/Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Wenjiang Feng
- Department
of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Baochun Guo
- Department
of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Fang Liu
- Department
of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Demin Jia
- Department
of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
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47
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Lin Y, Liu L, Cheng J, Shangguan Y, Yu W, Qiu B, Zheng Q. Segmental dynamics and physical aging of polystyrene/silver nanocomposites. RSC Adv 2014. [DOI: 10.1039/c4ra00517a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We report the complicated variation trend of calorimetric Tg and physical aging in PS/Ag nanocomposites, despite the invariant segmental dynamics with increasing silver nanoparticle loading.
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Affiliation(s)
- Yu Lin
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027, China
- Shanghai Key Laboratory of Advanced Polymeric Materials
| | - Langping Liu
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237, China
| | - Jiaqi Cheng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027, China
| | - Yonggang Shangguan
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027, China
| | - Wenwen Yu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027, China
| | - Biwei Qiu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027, China
| | - Qiang Zheng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027, China
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48
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Gao Y, Liu J, Zhang L, Cao D. Existence of a Glassy Layer in the Polymer-Nanosheet Interface: Evidence from Molecular Dynamics. MACROMOL THEOR SIMUL 2013. [DOI: 10.1002/mats.201300127] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yangyang Gao
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
- State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
| | - Jun Liu
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
- State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
| | - Liqun Zhang
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
- State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
| | - Dapeng Cao
- State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
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49
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Kummali MM, Miccio LA, Schwartz GA, Alegría A, Colmenero J, Otegui J, Petzold A, Westermann S. Local mechanical and dielectric behavior of the interacting polymer layer in silica nano-particles filled SBR by means of AFM-based methods. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.07.032] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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50
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Otegui J, Schwartz GA, Cerveny S, Colmenero J, Loichen J, Westermann S. Influence of Water and Filler Content on the Dielectric Response of Silica-Filled Rubber Compounds. Macromolecules 2013. [DOI: 10.1021/ma302408z] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- J. Otegui
- Centro de Física de Materiales (CSIC-UPV/EHU)-Material Physics Centre (MPC), P. M. de Lardizábal 5, 20018, San Sebastián, Spain
| | - G. A. Schwartz
- Centro de Física de Materiales (CSIC-UPV/EHU)-Material Physics Centre (MPC), P. M. de Lardizábal 5, 20018, San Sebastián, Spain
- Donostia Internacional Physics Center, Paseo Manuel de Lardizábal 4,
20018, San Sebastián, Spain
| | - S. Cerveny
- Centro de Física de Materiales (CSIC-UPV/EHU)-Material Physics Centre (MPC), P. M. de Lardizábal 5, 20018, San Sebastián, Spain
- Donostia Internacional Physics Center, Paseo Manuel de Lardizábal 4,
20018, San Sebastián, Spain
| | - J. Colmenero
- Centro de Física de Materiales (CSIC-UPV/EHU)-Material Physics Centre (MPC), P. M. de Lardizábal 5, 20018, San Sebastián, Spain
- Donostia Internacional Physics Center, Paseo Manuel de Lardizábal 4,
20018, San Sebastián, Spain
- Departamento de Física
de Materiales, Universidad del País Vasco (UPV/EHU), Facultad de Química, Apartado 1072, 20018, San Sebastián,
Spain
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