Polymer Thermoplastic Proton Conductors Based on PPO and PS Ionomer Blends

Cánovas, María José Cánovas; Acosta, J. L.; Linares, A.

doi:10.1002/macp.200400479

Cited by 14 publications

(11 citation statements)

References 36 publications

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“…3͒, is consistent with C-O and C-S moieties in a sulfonated poly͑phenylene oxide͒. 33 The binding energy of the S 2p 3/2 peak at 168.9 eV agrees with that previously reported for functionalized films obtained by postsynthesis sulfonation of PDPO in solution. 33,34 Ratioing the relative area of the S 2p peaks to the sum of the C-C and C-H peaks yields a S/C atomic ratio of 0.36; for the PSPO structure of Fig.…”

Section: A580supporting

confidence: 86%

Direct Electrodeposition of Nanoscale Solid Polymer Electrolytes via Electropolymerization of Sulfonated Phenols

Rhodes

Long

Rolison

2005

Electrochem. Solid-State Lett.

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Direct electrodeposition of ultrathin polymer electrolytes provides a facile route to incorporate ion-conducting functionality and electronic passivation at nanostructured, electrified interfaces. Conformal solid polymer electrolytes are generated directly at planar, rough oxide electrodes by electro-oxidation of 4-hydroxybenzenesulfonate, either alone or with a comonomer of 2,6-dimethylphenol. Electrodeposition from the comonomer solution at indium-tin oxide electrodes produces 88 ± 2-nm thick polymer coatings at the electrode surface, and the resulting films exhibit solid-state ion conductivity. Charge-compensating Na + in the as-deposited film can be ion exchanged for Li + . Direct electrodeposition of multifunctional polymers enables the development of nanostructured batteries and other solid-state ionic devices.Ever-increasing power requirements for microelectromechanical systems ͑MEMS͒ based and on-chip devices, 1 such as Smart Dust, 2 have begun to outpace the performance characteristics of existing power sources, particularly in terms of power and energy density. A fundamental rethinking is underway with respect to the design and assembly of power sources for such devices, with a particular emphasis on controlling the functional features of the power source on the meso-and nanoscale and investigating three-dimensional ͑3D͒ cell configurations. [3][4][5] We are developing 3D energy-storage architectures where the spacing between the electrodes is Ͻ50 nm, 4 which includes learning how to integrate 3D nanoscopic electrodeelectrolyte interfaces into all-solid-state nanostructured power sources. 6,7 Spacing active power components on this length scale calls for experimental and theoretical protocols that span conventional and molecular electronics. To date, most research has focused on the design and characterization of nanostructured electrodes, while relatively little effort has been focused on routes that fabricate solid electrolytes within the interior of nanostructured, ultraporous systems.Ultrathin ͑Ͻ100 nm͒ solid electrolytes are critical components in nanostructured power sources and are also necessary in order to improve energy and power density metrics by reducing the mass and volume of the nonelectroactive component. Solid electrolytes with nanoscale thickness are viable provided that the material as fabricated is pinhole-free, sustains the operational voltage dropped across the electrodes without dielectric breakdown, 4,7 and has an electronic conductivity sufficiently low to limit self-discharge of the battery under conditions of use. 4 In the nanometric size regime, the fundamental nature of ionic transport can be significantly different due to the influence of space charges. 8,9 Preliminary modeling suggests that when the electrolyte thickness is on the order of 5-500 nm, the ionic transport dramatically alters because of overlapping electrical double layers that induce field-driven fluxes in the ultrathin electrolyte. 10 Typical solid-state electrolytes, either solution-cast polymers 11 or vapo...

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Section: A580supporting

confidence: 86%

Direct Electrodeposition of Nanoscale Solid Polymer Electrolytes via Electropolymerization of Sulfonated Phenols

Rhodes

Long

Rolison

2005

Electrochem. Solid-State Lett.

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“…Finally, water and methanol crossover were measured [33] in PS-SH III and Nafion samples, at the conditions detailed in the experimental part. Diffusion coefficients measured in both samples were: Sample ADC water (cm 2 s −1 ) ADC methanol (cm 2 s −1 ) Nafion 5.0 × 10 −2 3.0 × 10 −2 PS-SH III 2.3 × 10 −2 3.6 × 10 −2…”

Section: Ps Hydrationmentioning

confidence: 99%

“…Sulfonation of benzene rings was carried out following the Makowski procedure [32], as it has been previously described [33]. The reagent used was acetyl sulfate, which was freshly prepared by mixing acetic anhydride and sulfuric acid.…”

Section: Sulfonation Of Polystyrene and Proceduresmentioning

confidence: 99%

Proton mobility in hydrated sulfonated polystyrene

Cánovas

Sobrados

Sanz

et al. 2006

Journal of Membrane Science

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“…Such specific interactions occur, for instance, in blends involving one or two ionomer phase(s). Ionomers are defined as polymer chains on which a small amount of ionic groups is grafted; [2] as a result, intermolecular interactions can be created in blends associating two ionomers [3][4][5] (anioncation interactions) or an ionomer with a polar polymer [6][7][8][9] (ion-dipole interactions). In particular, polystyrene (PS)-based ionomer/poly(ethylene glycol) (PEG) blends have been widely studied in the past 20 years.…”

Section: Introductionmentioning

confidence: 99%

Correlation between Morphology and Mechanical Properties in Zn‐Neutralized Sulfonated Polystyrene Ionomer/Poly(ethylene glycol) Blends: Contribution of EFTEM

Dalmas¹,

Vonet²,

Randriamahefa³

et al. 2010

Macro Chemistry & Physics

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Relationships between microstructure and mechanical properties in SPS‐Zn/PEG blends are investigated. Ion/dipole interactions induce the miscibility of both blend components for PEG content up to 10 wt.‐% as evidenced by DSC and TEM observations. Elemental mapping by EFTEM was used to investigate the ionic cluster microstructure and the phase structure in the blends. PEG chains do not hinder the formation of ionic multiplets but modify the microstructure of the clusters. Moreover, a PEG‐rich layer is observed in the vicinity of the aggregates surface. As a consequence, no cluster glass transition is observed in DMA experiments for these blend systems and besides, the absence of ionic plateau is assigned to the decrease in the ionic clusters' stability.magnified image

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Polymer Thermoplastic Proton Conductors Based on PPO and PS Ionomer Blends

Cited by 14 publications

References 36 publications

Direct Electrodeposition of Nanoscale Solid Polymer Electrolytes via Electropolymerization of Sulfonated Phenols

Direct Electrodeposition of Nanoscale Solid Polymer Electrolytes via Electropolymerization of Sulfonated Phenols

Proton mobility in hydrated sulfonated polystyrene

Correlation between Morphology and Mechanical Properties in Zn‐Neutralized Sulfonated Polystyrene Ionomer/Poly(ethylene glycol) Blends: Contribution of EFTEM

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