Simultaneous electronic and ionic conduction in ionic liquid imbibed polyacetylene-like conjugated polymer films

Sreeram, Arvind; Krishnan, Sitaraman; DeLuca, Stephan J.; Abidnejad, Azar; Türk, Michael; Roy, D.; Honarvarfard, Elham; Goulet, Paul J. G.

doi:10.1039/c5ra14360h

Cited by 15 publications

(34 citation statements)

References 56 publications

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Section: Methodsmentioning

confidence: 99%

“…Synthesis of Polyacetylene Films : A 5 wt% solution of poly(vinyl alcohol) (PVA) in a solvent blend consisting of water and ethanol (4:1, volume ratio) was used for the preparation of precursor fi lms. [ 54 ] Hydriodic acid (47 wt%) was added dropwise to the PVA solution (1:1, molar ratio). The precursor polymer solution was cast in a Tefl on mold, dried under dynamic vacuum at 60 °C for 12 h, and reacted at 200 °C for 1 h. The resulting fi lms were found to be about 100 μm thick.…”

Section: Synthesis Of Polymer Filmsmentioning

confidence: 99%

“…Bulk mechanical characterization of polyacteylene fi lms were carried out in a dynamic mechanical analyzer (Q800, TA instruments), using a procedure described elsewhere. [ 54 ] Briefl y, the samples were tested using frequency sweep experiments over a range of 1-80 Hz using a 0.1% strain amplitude and 1 mN preload force and a tension fi lm clamp. 100 °C is due to glass transition or some liquid crystalline mesophase transition.…”

Section: Dynamic Mechanical Analysis Of Polyacetylene Filmsmentioning

confidence: 99%

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Simulated Dilatometry and Static Deformation Prediction of Glass Transition and Mechanical Properties of Polyacetylene and Poly(para‐phenylene vinylene)

Venkatanarayanan

Krishnan

Sreeram

et al. 2016

Macro Theory & Simulations

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Thermophysical and mechanical properties of two conjugated polymers, poly(p‐phenylene vinylene) (PPV) and polyacetylene (PA), are predicted using molecular dynamics simulations and compared with results obtained from differential scanning calorimetry, nanoindentation, and dynamic mechanical analysis experiments. Glass transition temperature (Tg) is calculated from the changes in the slopes of the specific volume versus temperature and cohesive energy density versus temperature plots, obtained from constant pressure and constant temperature simulations (NPT ensemble). The effects of temperature on the torsion angle distributions and characteristic ratio are analyzed. PPV is found to have a Tg of 416 ± 8 K. PA does not exhibit a glass transition in the temperature range of 120 to 500 K. Using the static deformation method, the values of Young's modulus are calculated to be 1.81 ± 0.34 GPa for PA and 9.20 ± 0.57 GPa for PPV at 298 K. These values are in good agreement with the experimental measurements, validating the suitability of these techniques in the prediction of the polymer properties.

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Section: Methodsmentioning

confidence: 99%

Section: Synthesis Of Polymer Filmsmentioning

confidence: 99%

Section: Dynamic Mechanical Analysis Of Polyacetylene Filmsmentioning

confidence: 99%

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Simulated Dilatometry and Static Deformation Prediction of Glass Transition and Mechanical Properties of Polyacetylene and Poly(para‐phenylene vinylene)

Venkatanarayanan

Krishnan

Sreeram

et al. 2016

Macro Theory & Simulations

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“…), also in parallel with a serial ionic resistance ( R ion. ) and Warburg ion diffusion element ( W ) elements …”

Section: Resultsmentioning

confidence: 99%

“…At present, several different strategies are used to design and fabricate MIECs. They are: (1) mixing of conjugated polymers and polyelectrolytes [e.g., poly(3,4‐ethylenedioxythiophene):poly(styrene sulfonate)], (2) imbibing ionic fluids in conjugated polymer films, (3) incorporating ion conducting side chains on conjugated polymers, (4) ion‐doped or oxidized conjugated polymers, and (5) diblock copolymer with ion conducting and electronic conducting polymers as the constituent blocks [e.g., poly(3‐hexylthiophene)‐ b ‐poly(ethylene oxide) (P3HT‐ b ‐PEO)] . However, these methods do not afford separate and systematic control over the morphology and properties of the ionic and electronic conducting phases while keeping the overall morphology constant.…”

Section: Introductionmentioning

confidence: 99%

Mixed Ionic–Electronic Conduction in Binary Polymer Nanoparticle Assemblies

Renna

Lenef

Bag

et al. 2017

Adv Materials Inter

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transistors. [5] Polymer-based MIECs contain two principal components, one for electronic conduction and the other for ionic conduction. Each of these components should meet the molecular packing requirements for charge transport and both components should arrange in cocontinuous morphologies with percolation pathways for charge transport in three dimensions. Yet, achieving such structures relevant for MIECs has not been straightforward. At present, several different strategies are used to design and fabricate MIECs. They are: (1) mixing of conjugated polymers and polyelectrolytes [e.g., poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate)], [5,6,8,9] (2) imbibing ionic fluids in conjugated polymer films, [11] (3) incorporating ion conducting side chains on conjugated polymers, [12][13][14][15][16] (4) ion-doped [17][18][19][20] or oxidized [21] conjugated polymers, and (5) diblock copoly mer with ion conducting and electronic conducting polymers as the constituent blocks [e.g., poly(3-hexylthiophene)-bpoly(ethylene oxide) (P3HT-b-PEO)]. [2,3] However, these methods do not afford separate and systematic control over the morphology and properties of the ionic and electronic conducting phases while keeping the overall morphology constant. The central problem is the lack of a general approach to control the molecular packing and morphology in MIECs. We report here an approach, based on polymer nanoparticle selfassembly, to fabricate polymer-based MIECs. This approach provides a pathway to achieve tailored molecular order for each component on the nanoscale (<100 nm) and targeted assembly of the components on the mesoscale (>100 nm-100 µm). We demonstrate the efficacy of this approach for fabricating MIECs through binary nanoparticle assemblies of electronically conducting and Li-ion conducting polymer nanoparticles (see Figure 1a).Nanoparticle self-assembly is emerging as a powerful tool to design and fabricate mesoscale assemblies and interfaces. [22][23][24][25] For polymer-based materials, they provide a unique pathway to generate complex structures and co-assemblies under nonequilibrium processing conditions with macroscopic homogeneity and compositional flexibility. In this strategy, we first fabricate polymer components as nanoparticles, and then use them as building blocks for further assembly to create Polymer-based mixed ionic-electronic conductors (MIECs) are desired for both bulk and interfacial materials in next-generation energy storage and electronic devices. Polymer-based MIECs contain two principal components, one for electronic conduction and the other for ionic conduction. The central problem is the lack of a general approach to control the molecular packing and morphology of the constituent components that will afford the ability to easily tune transport properties. This study demonstrates the efficacy of a modular method based on polymer nanoparticle self-assembly to achieve MIECs with tunable conductivity. This work uses poly(3-hexylthiophene) nanoparticles as the electronic conductor and li...

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Enhanced Ionic and Electronic Conductivity of Polyacetylene with Dendritic 1,2,3‐Triazolium‐Oligo(ethylene glycol) Pendants

Wang

Zhang

et al. 2018

Macro Chemistry & Physics

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The ionic polyacetylenes (iPAs) with dendritic 1,2,3‐triazolium‐containing oligo(ethylene glycol) (OEG) pendants are prepared by metathesis cyclopolymerization. The dendritic triazolium and flexible OEG pendants endow the iPAs with low glass transition temperature of −29.0 °C and enhanced intrinsic ionic conductivity (σi) of 5.0 × 10−5 S cm−1 at 30 °C under anhydrous conditions. After solution doping with bis(trifluoromethane)sulfonimide lithium (LiTFSI), the σi of iPAs reaches up to 5.2 × 10−4 S cm−1. When doped with iodine (I2), the iPAs exhibit high electronic conductivity (σe) of 1.3 × 10−5 S cm−1. If doped with both LiTFSI and I2, the iPAs demonstrate the best dual σi and σe of 8.3 × 10−4 and 1.2 × 10−5 S cm−1, respectively. Therefore, the dendritic triazolium‐OEG pendants‐functionalized iPAs display an improved conductive performance compared with the corresponding iPAs bearing dendritic triazolium‐alkyl pendants, or branched triazolium‐OEG pendants, before and after doping with different dopants, and will have the potential applications in electronics as the dual conductive materials.

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Simultaneous electronic and ionic conduction in ionic liquid imbibed polyacetylene-like conjugated polymer films

Abstract: Electron and ion conducting polymer film prepared by hydroiodic acid catalyzed dehydration of poly(vinyl alcohol) and 1-propyl-3-methylimidazolium iodide blend.

Cited by 15 publications

References 56 publications

Simulated Dilatometry and Static Deformation Prediction of Glass Transition and Mechanical Properties of Polyacetylene and Poly(para‐phenylene vinylene)

Simulated Dilatometry and Static Deformation Prediction of Glass Transition and Mechanical Properties of Polyacetylene and Poly(para‐phenylene vinylene)

Mixed Ionic–Electronic Conduction in Binary Polymer Nanoparticle Assemblies

Enhanced Ionic and Electronic Conductivity of Polyacetylene with Dendritic 1,2,3‐Triazolium‐Oligo(ethylene glycol) Pendants

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