Proton Polymeric Gel Electrolyte Membranes Based on Polymethylmethacrylate

Grillone, A. M.; Panero, S.; Retamal, B. A.; Scrosati, B.

doi:10.1149/1.1391559

Cited by 92 publications

(27 citation statements)

References 13 publications

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“…Although the increase in conductivity is quite small yet it is significant in the sense that PMMA has been added to increase the viscosity of electrolytes and along with an increase in conductivity has also been observed. Similar results have also been reported for some other electrolytes [15][16][17][18]. The increase in conductivity with the addition of polymer has been generally explained to be due to an increase in free ion concentration, although the exact mechanism is still not very clearly understood.…”

Section: Resultssupporting

confidence: 84%

“…The increase in conductivity with the addition of polymer has been generally explained to be due to an increase in free ion concentration, although the exact mechanism is still not very clearly understood. In the case of polymer gel electrolytes containing weak acids [16,17,19], a breathing polymeric chain model has been proposed to explain an increase in free ion concentration with the addition of polymer. Recently similar results (r (gel) [ r (liquid)) have also been observed for some lithium ion conducting polymer gel electrolytes containing solvent with low value of dielectric constant [20].…”

Section: Resultsmentioning

confidence: 99%

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Conductivity modification of proton conducting polymer gel electrolytes containing a weak acid (ortho-hydroxy benzoic acid) with the addition of PMMA and fumed silica

Kumar

Sekhon

2008

J Appl Electrochem

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Polymer gel electrolytes synthesized by dispersing nano size fumed silica in polymer gel electrolytes containing polymethylmethacrylate (PMMA), orthohydroxy benzoic acid (o-OHBA) and dimethylacetamide (DMA) have been studied by complex impedance spectroscopy, viscosity and pH measurements. The addition of acid, polymer and fumed silica has been found to result in an increase in conductivity and viscosity of gel electrolytes and gels with conductivity higher than the corresponding liquid electrolytes have been obtained. Nano dispersed polymer gel electrolytes show conductivity 2.95 9 10 -4 S cm -1 and viscosity 1.74 9 10 4 cP at 25°C. Two maxima observed in the variation of conductivity of nano dispersed gels with fumed silica concentration have been assigned to the enhanced dissociation of weak acid and the formation of a high conducting interfacial region between fumed silica and gel electrolyte, respectively, which has also been supported by pH and viscosity studies. The small increase in conductivity of nano dispersed gels over the 20-100°C temperature range and its constant value with time is suitable for devices.

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Section: Resultssupporting

confidence: 84%

Section: Resultsmentioning

confidence: 99%

Conductivity modification of proton conducting polymer gel electrolytes containing a weak acid (ortho-hydroxy benzoic acid) with the addition of PMMA and fumed silica

Kumar

Sekhon

2008

J Appl Electrochem

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“…It is obvious that viscosity activation energy value is higher than conductivity one for both polymers and increases with polymer molecular weight rising. Lower ΔG # k values as compared with ΔG # η ones, as well as the values of conductivity activation energy themselves, indicate the Grotthuss-type mechanism of proton transfer in the gels under investigation [18,30].…”

Section: Resultsmentioning

confidence: 87%

“…7). Slight effect of humidity on the conductivity of gel electrolytes based on PMMA doped with salicylic acid solutions in different solvents (PC-EC-DMF mixtures, methylformamide (MF) and formamide (F)) was established in [18]. In addition it was revealed that the gel destroyed at water content more than 7 wt.%.…”

Section: Resultsmentioning

confidence: 94%

“…At the moment PMMA is one of commonly used polymeric materials for synthesis of proton conducting gel electrolytes [3][4][5][6][15][16][17][18] mainly due to its low price. Important criteria of solvent choice for gel synthesis are high permittivity, low viscosity, wide working temperature range and possibility of solvent molecules protonation by proton-donor.…”

Section: Introductionmentioning

confidence: 99%

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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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Conductivity and intermolecular interactions in proton‐conducting gel electrolytes

Shmukler

Thuc

Fadeeva

et al. 2014

J of Applied Polymer Sci

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Proton-conducting gel electrolytes based on poly(methyl methacrylate) (PMMA), poly(vinylidene fluoride) (PVdF), and mixtures of PMMA with PVdF or poly(vinyl chloride) doped by acid solutions in aprotic solvents were synthesized and are discussed in this article. The gel conductivity as a function of the concentrations of acid and polymer and the polymeric matrix composition has been analyzed. Extreme dependence of the conductivity on acid and polymer concentrations was found. It was revealed that within the acid concentration range studied, the gel conductivity was higher than the conductivity of the corresponding liquid electrolytes used for the synthesis. The increase in the electrical conductivity with the growth of the systems viscosity is discussed as an indication of a certain involvement of the polymer matrix in the increase of the charge carrier mobility within the frame of a Grotthuss mechanism.

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Proton Polymeric Gel Electrolyte Membranes Based on Polymethylmethacrylate

Cited by 92 publications

References 13 publications

Conductivity modification of proton conducting polymer gel electrolytes containing a weak acid (ortho-hydroxy benzoic acid) with the addition of PMMA and fumed silica

Conductivity modification of proton conducting polymer gel electrolytes containing a weak acid (ortho-hydroxy benzoic acid) with the addition of PMMA and fumed silica

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

Conductivity and intermolecular interactions in proton‐conducting gel electrolytes

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