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Urea-assisted ion-transport behavior in magnesium ion conducting solid polymer electrolyte membranes intended for magnesium batteries. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01910-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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2
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Ion-transport behavior in tetraethylene glycol dimethyl ether incorporated sodium ion conducting polymer gel electrolyte membranes intended for sodium battery application. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116594] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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3
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New Insight on Photoisomerization Kinetics of Photo-Switchable Thin Films Based on Azobenzene/Graphene Hybrid Additives in Polyethylene Oxide. Polymers (Basel) 2020; 12:polym12122954. [PMID: 33322058 PMCID: PMC7763885 DOI: 10.3390/polym12122954] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/05/2020] [Accepted: 12/07/2020] [Indexed: 12/28/2022] Open
Abstract
In this work, we reported a new insight on the kinetics of photoisomerization and time evolution of hybrid thin films considering the azo-dye methyl red (MR) incorporated with graphene accommodated in polyethylene oxide (PEO). The kinetics of photoisomerization and time-evolution of hybrid thin films were investigated using UV-Vis s and FTIR spectroscopies, as well as appropriate models developed with new analytical methods. The existence of azo-dye MR in the complex is crucial for the resource action of the trans↔cis cycles through UV-illumination ↔ Visible-illumination relaxations. The results of the UV–Vis and the FTIR investigations prove the cyclical trans ↔ cis-states. Consequently, PEO-(MR-Graphene) hybrid composite thin films can be introduced as possible applicants for photochromic molecular switches, light-gated transistors, and molecular solar thermal energy storage media.
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AL‐Akhras M, Alzoubi SE, Ahmad AA, Ababneh R, Telfah A. Studies of composite films of polyethylene oxide doped with potassium hexachloroplatinate. J Appl Polym Sci 2020. [DOI: 10.1002/app.49757] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- M‐Ali AL‐Akhras
- Department of Physics Jordan University of Science and Technology Irbid Jordan
| | - Shorooq E. Alzoubi
- Department of Physics Jordan University of Science and Technology Irbid Jordan
| | - Ahmad A. Ahmad
- Department of Physics Jordan University of Science and Technology Irbid Jordan
| | - Riad Ababneh
- Physics Department Yarmouk University Irbid Jordan
| | - Ahmad Telfah
- Bioresponsive Materials Leibniz‐Institut für Analytische Wissenschaften – ISAS – e.V. Dortmund Germany
- Hamdi Mango Center for Scientific Research (HMCSR) The University of Jordan (UJ) Amman Jordan
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Arya A, Saykar NG, Sharma AL. Impact of shape (nanofiller vs. nanorod) of TiO2
nanoparticle on free-standing solid polymeric separator for energy storage/conversion devices. J Appl Polym Sci 2018. [DOI: 10.1002/app.47361] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Anil Arya
- Department of Physical Sciences; Central University of Punjab; Mansa Road, Bathinda 151001 Punjab India
| | - Nilesh G. Saykar
- Department of Physical Sciences; Central University of Punjab; Mansa Road, Bathinda 151001 Punjab India
| | - A. L. Sharma
- Department of Physical Sciences; Central University of Punjab; Mansa Road, Bathinda 151001 Punjab India
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Telfah A, Abdul-Gader Jafar MM, Jum'h I, Ahmad MJA, Lambert J, Hergenröder R. Identification of relaxation processes in pure polyethylene oxide (PEO) films by the dielectric permittivity and electric modulus formalisms. POLYM ADVAN TECHNOL 2018. [DOI: 10.1002/pat.4306] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ahmad Telfah
- Leibniz Institut für Analytische Wissenschaften-ISAS-e.V.; Bunsen-Kirchhoff-Straße 11 44139 Dortmund Germany
| | | | - Inshad Jum'h
- School of Basic Sciences and Humanities (SBSH); German-Jordanian University (GJU); Amman 11180 Jordan
| | - Mais Jamil A. Ahmad
- Leibniz Institut für Analytische Wissenschaften-ISAS-e.V.; Bunsen-Kirchhoff-Straße 11 44139 Dortmund Germany
| | - Jörg Lambert
- Leibniz Institut für Analytische Wissenschaften-ISAS-e.V.; Bunsen-Kirchhoff-Straße 11 44139 Dortmund Germany
| | - Roland Hergenröder
- Leibniz Institut für Analytische Wissenschaften-ISAS-e.V.; Bunsen-Kirchhoff-Straße 11 44139 Dortmund Germany
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7
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Pal P, Ghosh A. Influence of TiO2 nano-particles on charge carrier transport and cell performance of PMMA-LiClO4 based nano-composite electrolytes. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2017.11.070] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Chakraborty P, Das S, Mondal S, Bairi P, Nandi AK. Nanoengineering of a Supramolecular Gel by Copolymer Incorporation: Enhancement of Gelation Rate, Mechanical Property, Fluorescence, and Conductivity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:1871-1880. [PMID: 26836971 DOI: 10.1021/acs.langmuir.5b04714] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In the quest to engineer the nanofibrillar morphology of folic acid (F) gel, poly(4-vinylpyridine-co-styrene) (PVPS) is judiciously integrated as a polymeric additive because of its potential to form H-bonding and π-stacking with F. The hybrid gels are designated as F-PVPSx gels, where x denotes the amount of PVPS (mg) added in 2 mL of F gel (0.3%, w/v). The assistance of PVPS in the gelation of F is manifested from the drop in critical gelation concentration and increased fiber diameter and branching of F-PVPSx gels compared to that of F gel. PVPS induces a magnificent improvement of mechanical properties: a 500 times increase of storage modulus and ∼62 times increase of yield stress in the F-PVPS5 gel compared to the F gel. The complex modulus also increases with increasing PVPS concentration with a maximum in F-PVPS5 gel. Creep recovery experiments suggest PVPS induced elasticity in the otherwise viscous F gel. The fluorescence intensity of F-PVPSx gels at first increases with increasing PVPS concentration showing maxima at F-PVPS5 gel and then slowly decreases. Gelation is monitored by time-dependent fluorescence spectroscopy, and it is observed that F and F-PVPSx gels exhibit perfectly opposite trend; the former shows a sigmoidal decrease in fluorescence intensity during gelation, but the latter shows a sigmoidal increase. The gelation rate constants calculated from Avrami treatment on the time-dependent fluorescence data manifest that PVPS effectively enhances the gelation rate showing a maximum for F-PVPS5 gel. The hybrid gel exhibit 5 orders increase of dc conductivity than that of F-gel showing semiconducting nature in the current-voltage plot. The Nyquist plot in impedance spectra of F-PVPS5 xerogel exhibit a depressed semicircle with a spike at lower frequency region, and the equivalent circuit represents a complex combination of resistance-capacitance circuits attributed to the hybrid morphology of the gel fibers.
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Affiliation(s)
- Priyadarshi Chakraborty
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700 032, India
| | - Sujoy Das
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700 032, India
| | - Sanjoy Mondal
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700 032, India
| | - Partha Bairi
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700 032, India
| | - Arun K Nandi
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700 032, India
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9
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Tripathi AK, Singh RK. Interface and core relaxation dynamics of IL molecules in nanopores of ordered mesoporous MCM-41: a dielectric spectroscopy study. RSC Adv 2016. [DOI: 10.1039/c6ra04212k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The dynamics of ionic liquid molecules confined in ordered porous MCM-41 has been investigated by dielectric measurements and two types of confined states of IL were found; pore wall surface adsorbed IL and core of pore filled IL.
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Dam T, Jena SS, Pradhan DK. The ionic transport mechanism and coupling between the ion conduction and segmental relaxation processes of PEO20-LiCF3SO3 based ion conducting polymer clay composites. Phys Chem Chem Phys 2016; 18:19955-65. [DOI: 10.1039/c6cp01744d] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An insight into thermally activated ion-hopping, relaxation dynamics and the coupled ion-conduction mechanism observed in ion-conducting polymer clay composites.
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Affiliation(s)
- Tapabrata Dam
- Department of Physics and Astronomy
- National Institute of Technology Rourkela
- Odisha-769008
- India
| | - Sidhartha S. Jena
- Department of Physics and Astronomy
- National Institute of Technology Rourkela
- Odisha-769008
- India
| | - Dillip K. Pradhan
- Department of Physics and Astronomy
- National Institute of Technology Rourkela
- Odisha-769008
- India
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Pal P, Ghosh A. Dynamics and relaxation of charge carriers in poly(methylmethacrylate)-based polymer electrolytes embedded with ionic liquid. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2015; 92:062603. [PMID: 26764720 DOI: 10.1103/physreve.92.062603] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Indexed: 06/05/2023]
Abstract
In the present paper, we have studied dynamics and relaxation of the charge carriers in polymethylmethacrylate-lithium bis(trifluoromethane sulfonyl)imide polymer electrolytes embedded with 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquid. We have analyzed the frequency dependent conductivity spectra using the random free-energy barrier model coupled with the contribution of electrode polarization in the low frequency region. The temperature dependence of ionic conductivity, and relaxation time obtained from the analysis of the spectra exhibits Vogel-Tammann-Fulcher type behavior. The Barton-Nakajima-Namikawa relation is consistent with the results obtained from the random free-energy barrier model. The scaling of ac conductivity spectra has been performed to understand the effect of temperature as well as the composition on the relaxation mechanism. The analysis of the ac conductivity also clearly indicates the existence of a nearly constant loss phenomenon at low temperatures or at high frequencies.
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Affiliation(s)
- P Pal
- Department of Solid State Physics, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - A Ghosh
- Department of Solid State Physics, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
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12
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Das S, Ghosh A. Effect of plasticizers on ionic conductivity and dielectric relaxation of PEO-LiClO4 polymer electrolyte. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.04.178] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Chakraborty P, Bairi P, Mondal S, Nandi AK. Co-Assembled Conductive Hydrogel of N-Fluorenylmethoxycarbonyl Phenylalanine with Polyaniline. J Phys Chem B 2014; 118:13969-80. [DOI: 10.1021/jp5086137] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Priyadarshi Chakraborty
- Polymer
Science Unit, Indian Association for the Cultivation of Science, Jadavpur,
Kolkata 700
032, India
| | - Partha Bairi
- Polymer
Science Unit, Indian Association for the Cultivation of Science, Jadavpur,
Kolkata 700
032, India
| | - Sanjoy Mondal
- Polymer
Science Unit, Indian Association for the Cultivation of Science, Jadavpur,
Kolkata 700
032, India
| | - Arun K. Nandi
- Polymer
Science Unit, Indian Association for the Cultivation of Science, Jadavpur,
Kolkata 700
032, India
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14
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Mukherjee P, Kundu A, Samanta S, Roy S, Nandi AK. Nondestructive characterization of Li+ ion-doped multifunctional poly(vinylidene fluoride)-g-poly(dimethyl amino ethyl methacrylate) by impedance spectroscopy. J Phys Chem B 2013; 117:1458-66. [PMID: 23297874 DOI: 10.1021/jp311755w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Poly(vinylidene fluoride) (PVDF)-graft-poly(dimethyl amino ethyl methacrylate) (PDMAEMA) (PD copolymer) is produced via atom transfer radical polymerization from PVDF solution in N-methyl-2-pyrrolidone. PD copolymer is doped with 1% and 5% (w/w) Li(+) ion to produce PDLi1 and PDLi5 samples, respectively. In PD copolymer, the crystalline structure of PVDF changes from α polymorph to a mixture of α and β polymorph, and it transforms completely to piezoelectric β polymorph on doping with 1% (w/w) Li(+) ion. The impedance behavior of PVDF changes on grafting, and that of the PD graft copolymer also changes with increasing Li(+) ion dopant concentration. In the Nyquist plots, PVDF exhibits a straight line character, and a curvature has appeared in the PD graft copolymer; on doping the latter with Li(+) ion (1% w/w), the curvature increases and a semicircle is completed on 5% Li(+) doping. Fitting the data from the Z-view program, the Ohmic resistance of PDLi1 is found to be 78 MΩ having capacitance with constant phase element (CPE) = 1.38 nF while for the PDLi5 sample the resistance decreases to16.1 MΩ with a small increase in CPE to 1.46 nF. The modulus plane plots for PDLi1 and PDLi5 samples also exhibit only one peak supporting the presence of only one equivalent resistance-capacitance circuit with constant phase element in both PDLi1 and PDLi5 samples. Both the impedance and modulus vs frequency plots of PDLi1 and PDLi5 samples exhibit a single Debye peak suggesting isotropic nature of the samples. For PVDF and PDMAEMA, ac-conductivity increases linearly with angular frequency, but in the case of PDLi1 and PDLi5 samples, it remains at first invariant in the frequency range 1-10(2) Hz, and above 10(2) Hz, an increase in conductivity with frequency occurs obeying the double power law. In the temperature variation of conductivity, PVDF exhibits its typical insulating nature, and in the PD graft copolymer, the conductivity decreases with increase of temperature (metallic-like behavior) due to gradual breaking of supramolecular interaction. The temperature variation of ac-conductivity of the Li(+)-doped PD graft copolymer suggests that both the ionic and supramolecular contributions of conductivity operate; the former increases and the latter decreases with rise in temperature showing a maximum. The temperature-dependent FTIR spectra of PDLi1 and PDLi5 samples support the gradual breaking of supramolecular interactions with increase of temperature.
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Affiliation(s)
- Pratap Mukherjee
- Polymer Science Unit, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
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15
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Basu T, Goswami MM, Middya TR, Tarafdar S. Morphology and Ion-Conductivity of Gelatin–LiClO4 Films: Fractional Diffusion Analysis. J Phys Chem B 2012; 116:11362-9. [DOI: 10.1021/jp306205h] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tania Basu
- Condensed
Matter Physics Research Centre, Physics Department, Jadavpur University, Kolkata 700032, India
| | - Minakshi Maitra Goswami
- Condensed
Matter Physics Research Centre, Physics Department, Jadavpur University, Kolkata 700032, India
| | - T. R. Middya
- Condensed
Matter Physics Research Centre, Physics Department, Jadavpur University, Kolkata 700032, India
| | - Sujata Tarafdar
- Condensed
Matter Physics Research Centre, Physics Department, Jadavpur University, Kolkata 700032, India
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