PMMA-based polymer gel electrolytes containing NH4PF6: Role of molecular weight of polymer

Sharma, Jitender Paul; Sekhon, S. S.

doi:10.1016/j.mseb.2005.12.019

Cited by 26 publications

(13 citation statements)

References 20 publications

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“…It was shown that with PMMA molecular weight enhancement from 15,000 to 996,000 the conductivity lowering occurred. The similar trend (opposite to one obtained by us) of conductivity changes with PMMA molecular weight increasing was demonstrated in [29] for polymer gel electrolytes doped with NH 4 PF 6 solution in PC. Moreover the conductivity of gels considered in [29] was almost independent of the polymer molecular weight up to its content about 10 wt.%.…”

Section: Resultssupporting

confidence: 83%

“…The similar trend (opposite to one obtained by us) of conductivity changes with PMMA molecular weight increasing was demonstrated in [29] for polymer gel electrolytes doped with NH 4 PF 6 solution in PC. Moreover the conductivity of gels considered in [29] was almost independent of the polymer molecular weight up to its content about 10 wt.%. But in these works there are no interpretations of such conductivity changes depending on polymer molecular weights.…”

Section: Resultssupporting

confidence: 83%

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Proton conducting gel electrolytes based on polymethylmethacrylate doped with sulfuric acid solutions in N,N-dimethylformamide

et al. 2012

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In the work presented time-stable proton conducting gel electrolytes based on polymethylmethacrylate doped with sulfuric acid solutions in N,N-dimethylformamide were synthesized. The dependences of gels conductivity on the acid concentration and the molecular mass of PMMA at 25-65°C are studied. The thermal stability of electrolytes was estimated. The FT-IR (ATR) spectroscopy was used for understanding of mechanism of proton transfer.

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Section: Resultssupporting

confidence: 83%

Section: Resultssupporting

confidence: 83%

Proton conducting gel electrolytes based on polymethylmethacrylate doped with sulfuric acid solutions in N,N-dimethylformamide

et al. 2012

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“…are some of the commonly used polymers in the synthesis of polymer gel electrolytes [11][12][13]. Recently, some work on the comparative role of different polymers on the solvability and other properties of polymer gel electrolytes has been reported [14,15]. As the properties of polymer also depend upon its average molecular weight, so the comparison of results reported by different workers could not be made sometimes due to the different molecular weights of the polymer used.…”

Section: Introductionmentioning

confidence: 99%

Effect of molecular weight of PMMA on the conductivity and viscosity behavior of polymer gel electrolytes containing NH4CF3SO3

Kumar

Sekhon

2008

Ionics

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The addition of polymethyl methacrylate (PMMA) having different molecular weights to electrolytes containing ammonium trifluoromethanesulfonate (NH 4 CF 3 SO 3 ) in diethyl carbonate (DEC) has been found to result in conductivity enhancement and to yield gel electrolytes with conductivity higher than the corresponding liquid electrolytes. The increase in conductivity has been found to be due to the dissociation of undissociated NH 4 CF 3 SO 3 and ion aggregates present in the electrolytes, and this has been supported by Fourier transform infrared spectroscopy results, which suggests active interaction of PMMA and NH 4 CF 3 SO 3 in these gel electrolytes. The increase in conductivity also depends upon the molecular weight of the polymer used and is relatively more for PMMA having lower molecular weight. The increase in viscosity with PMMA addition also depends upon the molecular weight of the polymer and is closely related to the conductivity behavior of these electrolytes. Polymer gel electrolytes have been found to be thermally stable up to a temperature of 125°C.

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“…Increment of the conductivity with polymer concentration may be due to the increasing of the assistance for ionic motion by polymer chains. When increasing polymer concentration further, it increases the viscosity of the system (Sharma & Sekhon 2006). Because of that, the resistance for ion mobility increases and the conductivity decreases.…”

Section: Figure 03mentioning

confidence: 98%

Performance of A Sodium Thiocyanate Based Gel Polymer Electrolyte In Redox Capacitors

Bandaranayake¹,

Jayathilake²,

Vidanapathirana³

et al. 2015

Sabaragamuwa Univ J

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Solid state redox capacitors have received a tremendous interest in terms of several characteristics such as their fast energy delivery, short charging time, high power density and extended durability. Due to the absence of a liquid electrolyte, they are free from drawbacks of leakage and unsafe. In this study, preparation and characterization of a redox capacitor consisting with two identical polypyrrole (PPy): dodecylbenzenesulfonate (DBS) electrodes and a gel polymer electrolyte (GPE) based on polyvinylidene fluoride (PVdF), ethylene carbonate (EC), propylene carbonate (PC) and sodium thiocyanate (NaSCN) is reported. The GPE having the composition, 0.4 PVdF: 1 EC: 1 PC: 0.075 NaSCN (by weight) showed the maximum conductivity of 2.25× 10 -3 S cm -1 . Redox capacitors were characterized using Cyclic Voltammetry, Electrochemical Impedance Spectroscopy and Galvanostatic Charge Discharge test. They exhibited an energy density about 0.25 W h kg -1 and an average power density of 4 kW kg -1

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PMMA-based polymer gel electrolytes containing NH4PF6: Role of molecular weight of polymer

Cited by 26 publications

References 20 publications

Proton conducting gel electrolytes based on polymethylmethacrylate doped with sulfuric acid solutions in N,N-dimethylformamide

Proton conducting gel electrolytes based on polymethylmethacrylate doped with sulfuric acid solutions in N,N-dimethylformamide

Effect of molecular weight of PMMA on the conductivity and viscosity behavior of polymer gel electrolytes containing NH4CF3SO3

Performance of A Sodium Thiocyanate Based Gel Polymer Electrolyte In Redox Capacitors

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