The dielectric and polarization behavior of polyurethane-based polycarbonate diols with different content levels of fluorinated hard segments

Chunarrom, Wannida; Manuspiya, Hathaikarn

doi:10.1039/d0py01682a

Cited by 12 publications

(4 citation statements)

References 32 publications

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“…21. Notably, the introduction of fluorinated groups in the soft segment chain enhanced the polymer polarity via induced dipole moment, creating higher dielectric constant which subsequently contributed to the higher capacitance value 45,46 . Thus, the MESHPIE-based device exhibited a higher initial capacitance value than the NFPU-IL-based device.…”

Section: Pressure-induced Sensing Performancementioning

confidence: 99%

Ultrafast underwater self-healing piezo-ionic elastomer via dynamic hydrophobic-hydrolytic domains

Kong,

Boahen,

Kim

et al. 2024

Nat Commun

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The development of advanced materials capable of autonomous self-healing and mechanical stimulus sensing in aquatic environments holds great promise for applications in underwater soft electronics, underwater robotics, and water-resistant human-machine interfaces. However, achieving superior autonomous self-healing properties and effective sensing simultaneously in an aquatic environment is rarely feasible. Here, we present an ultrafast underwater molecularly engineered self-healing piezo-ionic elastomer inspired by the cephalopod’s suckers, which possess self-healing properties and mechanosensitive ion channels. Through strategic engineering of hydrophobic C–F groups, hydrolytic boronate ester bonds, and ions, the material achieves outstanding self-healing efficiencies, with speeds of 94.5% (9.1 µm/min) in air and 89.6% (13.3 µm/min) underwater, coupled with remarkable pressure sensitivity (18.1 kPa–1) for sensing performance. Furthermore, integration of this mechanosensitive device into an underwater submarine for signal transmission and light emitting diode modulation demonstrates its potential for underwater robotics and smarter human-machine interactions.

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Section: Pressure-induced Sensing Performancementioning

confidence: 99%

Ultrafast underwater self-healing piezo-ionic elastomer via dynamic hydrophobic-hydrolytic domains

Kong,

Boahen,

Kim

et al. 2024

Nat Commun

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show abstract

“…[57][58][59] However, few materials reported are qualified for these requirements. Attributed to the polar urea and ether groups, [60][61][62] SMP showed a high dielectric constant of ≈10 with a dielectric loss of ≈0.028 at the working frequency of commercial touch panels (10 6 Hz) within a wide temperature range (−20 to 40 °C) (Figure 5a,b). For comparison, the dielectric constant of polystyrene, poly (4-vinyl phenol), and polymethyl methacrylate were only 2.6, 4.1, and 3.5, respectively.…”

Section: Applicationmentioning

confidence: 99%

Transparent High‐Performance Supramolecular Plastics Operating in All‐Weather Environments

Chen

et al. 2023

Adv Funct Materials

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Supramolecular plastics (SMPs) can be made mechanically robust, repairable, and recyclable, rendering themselves promising alternatives to their conventional predecessors to address environmental concerns. However, dense accumulations of noncovalent bonds generally lead to mechanical brittleness as well as intolerance toward heat and moisture. To resolve this issue, a simple strategy of preparing high-performance SMP by constructing highly dense, but irregular hydrogen-bond networks with hierarchical structures is proposed. The resultant SMP exhibits an outstanding combination of good comprehensive mechanical properties (high stiffness, strength, and toughness with ductile failure when fracturing), excellent dynamic behaviors (repairability and recyclability), and high tolerances toward moisture and high temperatures (as high as 90 °C). Additionally, the SMP also shows a high dielectric constant, exhibiting great potential for applications such as healable flexible touch screens and energy storage. Last, through structure characterizations and molecular dynamic simulation, this study provides a fundamental insight into the mechanism behind such high-performances from nano-to micro-scales, which is expected to inspire the design of a wide range of other SMPs that use different chemistries.

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“…20. Notably, the introduction of uorinated groups in the soft segment chain enhanced the polymer polarity via induced dipole moment, creating higher dielectric constant which subsequently contributed to the higher capacitance value 42,43 . Thus, the MESHPIE-based device exhibited a higher initial capacitance value than the NFPU-IL-based device.…”

Section: Pressure-induced Sensing Performancementioning

confidence: 99%

Ultrafast underwater self-healing piezo-ionic elastomer via dynamic hydrophobic-hydrolytic domains

Kim,

Kong,

Boahen

et al. 2023

Preprint

View full text Add to dashboard Cite

The development of advanced materials capable of autonomous self-healing and mechanical stimulus sensing in aquatic environments holds great promise for applications in underwater soft electronics, underwater robotics, and water-resistant human-machine interfaces. However, achieving superior autonomous self-healing properties and effective sensing simultaneously in an aquatic environment is rarely feasible. Here, we present an ultrafast underwater molecularly engineered self-healing piezo-ionic elastomer (MESHPIE) inspired by the cephalopod’s suckers, which possess self-healing properties and mechanosensitive ion channels. Through strategic engineering of hydrophobic C–F groups, hydrolytic boronate ester bonds, and ions, the material achieves outstanding self-healing efficiencies, with speeds of 94.5% (9.1 µm/min) in air and 89.6% (13.3 µm/min) underwater, coupled with remarkable pressure sensitivity (18.1 kPa–1) for sensing performance. Furthermore, integration of this mechanosensitive device into an underwater submarine for signal transmission and LED modulation demonstrates its potential for underwater robotics and smarter human-machine interactions.

show abstract

The dielectric and polarization behavior of polyurethane-based polycarbonate diols with different content levels of fluorinated hard segments

Abstract: A novel series of polyurethane based polycarbonate diol containing fluorinated hard segments in the main chain (FPU) were synthesized using a prepolymer method. The content of fluorinated hard segment was...

Cited by 12 publications

References 32 publications

Ultrafast underwater self-healing piezo-ionic elastomer via dynamic hydrophobic-hydrolytic domains

Ultrafast underwater self-healing piezo-ionic elastomer via dynamic hydrophobic-hydrolytic domains

Transparent High‐Performance Supramolecular Plastics Operating in All‐Weather Environments

Ultrafast underwater self-healing piezo-ionic elastomer via dynamic hydrophobic-hydrolytic domains

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