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Pitchiya AP, Slenker BE, Sreeram A, Johnson C, Orimolade T, Roy D, Krishnan S. Graphene-Enhanced Ion Transport in Dual-Conducting Composite Films of Polyacetylene and an Imidazolium Iodide Ionic Liquid. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:6767-6779. [PMID: 37140961 DOI: 10.1021/acs.langmuir.3c00259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Dual-conducting polymer films were synthesized by dispersing graphene in an aqueous solution of poly(vinyl alcohol) and 1-propyl-3-methylimidazolium iodide ([C3mim]I) ionic liquid and thermally converting the poly(vinyl alcohol) to polyene in the presence of hydroiodic acid catalyst. The electrical and mechanical properties of the resulting free-standing films of the nanocomposite, containing different concentrations of graphene, were analyzed using electrochemical impedance spectroscopy (EIS) and dynamic mechanical analysis (DMA), respectively. Nyquist plots (imaginary vs real components of the frequency-dependent impedance) showed two characteristic arcs representing the composite's electronic and ionic conduction pathways. The conductivity values corresponding to both charge transport mechanisms increased with temperature and the graphene concentration. The enhancement in electronic conductivity is expected because of graphene's high electron mobility. Interestingly, ionic conductivity also showed a significant increase with graphene concentration, approximately triple the extent of the rise in the electronic conductivity, even though the loss and storage moduli of the films increased. (Generally, a higher modulus results in lower ionic conductivities in ionic gels.) Molecular dynamics simulations of the three-component system provided some insights into this unusual behavior. Mean square displacement data showed that the diffusion of the iodide anions was relatively isotropic. The iodide diffusion coefficient was higher in a blend with 5 vol % graphene than in blends with 3 vol % graphene or no graphene. The improvement is attributed to the interfacial effects of the graphene on the free volume of the blend. Furthermore, an exclusion of the iodide ions from the vicinity of graphene was observed in the radial distribution function analysis. The increase in the effective concentration of iodide due to this exclusion and the increase in its diffusion coefficient because of the excess free volume are the primary reasons for the observed enhancement in ionic conductivity by adding graphene.
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Affiliation(s)
- Aswin Prathap Pitchiya
- Department of Chemical and Biomolecular Engineering, Clarkson University, Potsdam, New York 13699, United States
| | - Benjamin Edward Slenker
- Department of Chemical and Biomolecular Engineering, Clarkson University, Potsdam, New York 13699, United States
| | - Arvind Sreeram
- Department of Chemical and Biomolecular Engineering, Clarkson University, Potsdam, New York 13699, United States
| | - Cody Johnson
- Department of Physics, Clarkson University, Potsdam, New York 13699, United States
| | - Temitope Orimolade
- Department of Chemical and Biomolecular Engineering, Clarkson University, Potsdam, New York 13699, United States
| | - Dipankar Roy
- Department of Physics, Clarkson University, Potsdam, New York 13699, United States
| | - Sitaraman Krishnan
- Department of Chemical and Biomolecular Engineering, Clarkson University, Potsdam, New York 13699, United States
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Tan JH, Chen CL, Liu YW, Wu JY, Wu D, Zhang X, She ZH, He R, Zhang HL. Molecular simulations of gas transport in hydrogenated nitrile butadiene rubber. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02258-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Tan J, Chen C, Liu Y, Wu J, Wu D, Zhang X, He X, She Z, He R, Zhang H. Molecular simulations of gas transport in hydrogenated nitrile butadiene rubber and ethylene-propylene-diene rubber. RSC Adv 2020; 10:12475-12484. [PMID: 35497587 PMCID: PMC9051154 DOI: 10.1039/d0ra00192a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 03/16/2020] [Indexed: 11/25/2022] Open
Abstract
Diffusion and sorption of five gases (H2, N2, O2, CO2, CH4) in hydrogenated nitrile butadiene rubber (HNBR) and ethylene–propylene–diene rubber (EPDM) have been investigated by molecular dynamics (MD) and grand canonical Monte Carlo (GCMC) simulations. The diffusion coefficients of gas molecules in HNBR and EPDM are well correlated with the effective penetrant diameter except for CO2. CO2 shows a lower diffusion coefficient due to its linear shape. Additionally, the favorable interaction between CO2 and HNBR is another factor for its lower diffusion coefficient in HNBR. HNBR shows lower diffusion coefficients than EPDM. This is because the polar –CN groups in HNBR chains increase interchain cohesion and result in tight intermolecular packing, low free volume and poor chain mobility, which decreases the diffusion coefficients of HNBR. The solubility coefficients of CH4, O2, N2 and H2 in HNBR are lower than those in EPDM, which is a result of the weak HNBR–penetrant interactions and low free volume of HNBR. However, the solubility coefficient of CO2 in HNBR is higher than in EPDM. This is attributed to the strong interaction between CO2 and HNBR. H2, O2, N2 and CH4 show lower permeability coefficients in HNBR than in EPDM, while CO2 has higher permeability coefficients in HNBR. These molecular details provide critical information for the understanding of structures and gas transport between HNBR and EPDM. Diffusion and sorption of five gases (H2, N2, O2, CO2, CH4) in HNBR and EPDM were explored by MD and GCMC simulations.![]()
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Affiliation(s)
- JingHua Tan
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, School of Packaging and Materials Engineering, Hunan University of Technology Zhuzhou 412007 P. R. China
| | - Chenliang Chen
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, School of Packaging and Materials Engineering, Hunan University of Technology Zhuzhou 412007 P. R. China
| | - Yiwu Liu
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, School of Packaging and Materials Engineering, Hunan University of Technology Zhuzhou 412007 P. R. China
| | - Juying Wu
- Institute of Systems and Engineering, China Academy of Engineering Physics Mianyang 621000 P. R. China
| | - Ding Wu
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, School of Packaging and Materials Engineering, Hunan University of Technology Zhuzhou 412007 P. R. China
| | - Xiang Zhang
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, School of Packaging and Materials Engineering, Hunan University of Technology Zhuzhou 412007 P. R. China
| | - Xiaoye He
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, Key Laboratory of Advanced Functional Polymer Materials of Colleges, Universities of Hunan Province, College of Chemistry, Xiangtan University Xiangtan 411105 P. R. China
| | - Zhihong She
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, School of Packaging and Materials Engineering, Hunan University of Technology Zhuzhou 412007 P. R. China
| | - Ren He
- Institute of Systems and Engineering, China Academy of Engineering Physics Mianyang 621000 P. R. China
| | - Hailiang Zhang
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, Key Laboratory of Advanced Functional Polymer Materials of Colleges, Universities of Hunan Province, College of Chemistry, Xiangtan University Xiangtan 411105 P. R. China
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Al-Raeei M, El-Daher MS. Temperature dependence of the specific volume of Lennard-Jones potential and applying in case of polymers and other materials. Polym Bull (Berl) 2020. [DOI: 10.1007/s00289-020-03166-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Luo M, Putnam ZA, Incavo J, Huang MY, McLaughlin JB, Krishnan S. Molecular Simulations and Experimental Characterization of Fluorinated Nitrile Butadiene Elastomers with Low H2S Permeability. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b02445] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | - Joseph Incavo
- Baker Hughes, a GE Company, Houston, Texas 77032, United States
| | - Ming Y. Huang
- Baker Hughes, a GE Company, Houston, Texas 77032, United States
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Godey F, Bensaid M, Soldera A. Extent of the glass transition in polymers envisioned by computation of mechanical properties. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.01.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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The glass transition temperature of PMMA: A molecular dynamics study and comparison of various determination methods. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.03.056] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Root SE, Savagatrup S, Printz AD, Rodriquez D, Lipomi DJ. Mechanical Properties of Organic Semiconductors for Stretchable, Highly Flexible, and Mechanically Robust Electronics. Chem Rev 2017; 117:6467-6499. [DOI: 10.1021/acs.chemrev.7b00003] [Citation(s) in RCA: 465] [Impact Index Per Article: 66.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Samuel E. Root
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Drive, Mail Code 0448, La Jolla, California 92093-0448, United States
| | - Suchol Savagatrup
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Drive, Mail Code 0448, La Jolla, California 92093-0448, United States
| | - Adam D. Printz
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Drive, Mail Code 0448, La Jolla, California 92093-0448, United States
| | - Daniel Rodriquez
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Drive, Mail Code 0448, La Jolla, California 92093-0448, United States
| | - Darren J. Lipomi
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Drive, Mail Code 0448, La Jolla, California 92093-0448, United States
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Baibarac M, Ilie M, Baltog I, Lefrant S, Humbert B. Infrared dichroism studies and anisotropic photoluminescence properties of poly(para-phenylene vinylene) functionalized reduced graphene oxide. RSC Adv 2017. [DOI: 10.1039/c6ra26445j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Polarized PL spectra of the composite based on 0.5 wt% RGO and PPV in un-doped state.
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Affiliation(s)
- M. Baibarac
- National Institute of Materials Physics
- Laboratory of Optical Processes in Nanostructured Materials
- Bucharest
- Romania
| | - M. Ilie
- National Institute of Materials Physics
- Laboratory of Optical Processes in Nanostructured Materials
- Bucharest
- Romania
- University of Bucharest
| | - I. Baltog
- National Institute of Materials Physics
- Laboratory of Optical Processes in Nanostructured Materials
- Bucharest
- Romania
| | - S. Lefrant
- Institut des Materiaux “Jean Rouxel”
- Nantes
- France
| | - B. Humbert
- Institut des Materiaux “Jean Rouxel”
- Nantes
- France
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