Effect of Halloysite Nanotubes as Novel Nanofiller on Peroxide- and Electron Beam Radiation-Initiated Polyphosphazene Elastomer

Kundu, Mrinal Kanti; Hatui, Goutam; Das, C. K.; Nigam, Vineeta; Saxena, A. K.

doi:10.1080/03602559.2014.961079

Cited by 5 publications

(6 citation statements)

References 46 publications

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“…In these PS/MMT nanocomposites, the distance between the sheets of MMT was barely influenced by varying the content of the MMT.The glass-transition temperature of PS/MMT nanocomposites was obviously higher than that of the pure PS. Kundu et al [88] have radiated a tube-like, naturally occurring halloysite clay mineral (HNTs) incorporated polyphosphazene (PPZ) elastomeric nanocomposites by electron beam. The efficiency of electron beam radiation over chemical initiation for intra and inter chain network formation within the resin was substantiated through oil and solvent resistance studies( Fig.5).…”

Section: Montmorillonite-polymer Nanocompositementioning

confidence: 99%

Radiation Processing of Polymer-based Nanomaterials

Zhou¹,

Cao²,

Liu³

et al. 2016

Proceedings of the 3rd International Conference on Material Engineering and Application (ICMEA 2016)

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In this paper, the preparation of polymeric nanocomposite based on carbon nanotubes or/and graphene by radiation techniques were reviewed. The preparation of polyhedral poligomeric sisesquioxane (POSS)-polymer and montmorillonite-polymer nanocomposite using radiation methods were discussed. And the preparation of nano-particles/polymer nanocomposite s and polymer-polymer Nanocomposites via irradiation were also introduced.

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Section: Montmorillonite-polymer Nanocompositementioning

confidence: 99%

Radiation Processing of Polymer-based Nanomaterials

Zhou¹,

Cao²,

Liu³

et al. 2016

Proceedings of the 3rd International Conference on Material Engineering and Application (ICMEA 2016)

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“…While, in the structure, R 1 and R 2 are the identical side groups rich in oligoethyleneoxide (-OCH 2 CH 2 -) n=2 chain with an additional terminal methoxy group ((-OCH 3 ) attached on both side of the phosphorous atom. Over the years, it took special place in the polyphosphazene-based synthetic category by showcasing wide range of technical application, such as, a hydrogel in biomedical and polymer electrolyte in electrochemical devices [1][2][3][4][5][6][7][8][9][10][11][12]. The unique combination of it in polymer-in-salt is known to provide ionic conductivity to mixture, and has been demonstrated to offer a safety solution to fire risks conditions [1][2][3][4][5][6][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Molecular dynamics simulation of salt diffusion in constituting phosphazene-based polymer electrolyte

Kaur,

Swayamjyoti,

Taneja

et al. 2024

J. Phys.: Condens. Matter

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A growing demand to visualize polymer models in liquid poses a computational challenge in molecular dynamics (MD) simulation, as this requires emerging models under suitable force fields to capture the underlying molecular behaviour accurately. In our present study, we have employed TIP3P potential on water and all atomistic optimized potentials for liquid simulations force fields to study the liquid electrolyte behavior of phosphazene-based polymer by considering its potential use in lithium-ion polymer batteries. We have explored the polymer's local structure, chain packing, wettability, and hydrophobic tendencies against the silicon surface using a combination of a pseudocontinuum model in MD simulation, and surface-sensitive sum frequency generation (SFG) vibrational spectroscopy. The finding yields invaluable insights into the molecular architecture of phosphazene. This approach identifies the importance of hydrophobic interactions with air and hydrophilic units with water molecules in understanding the behavior and properties of phosphazene-based polymers at interfaces, contributing to its advancements in materials science. The MD study uniquely captures traces of the polymer-ion linkage, which is observed to become more pronounced with the increase in polymer weight fraction. The theoretical observation of this linkage's influence on lithium-ion diffusion motion offers valuable insights into the fundamental physics governing the behavior of atoms and molecules within phosphazene-based polymer electrolytes in aqueous environments. Further these predictions are corroborated in the molecular-level depiction at the air-aqueous interface, as evidenced from the OH-oscillator strength variation measured by the SFG spectroscopy. The fundamental findings from this study open new avenues for utilizing MD simulation as a versatile methodology to gain profound insights into intermolecular interactions of polymer. It could be useful in the application of biomedical and energy-related research, such as polymer lithium-ion batteries, fuel cells, and organic solar cells.

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“…In the last two decades, methoxyethoxyethoxy phosphazene (MEEP) has emerged as a potential polymer that has shown its strong candidature in various device applications such as organic solar cells, Li-polymer batteries, and fuel cells as an ionically conducting host polymer for its unique features [7][8][9][10][11]. In 1984, Blonsky et al introduced MEEP to the world as a host polymer that can form complexes with metal ions and demonstrated its solid PE ability to support ion transport mechanisms through polymer-salt complexes similar to liquid-like electrolytes [7].…”

Section: Introductionmentioning

confidence: 99%

“…MEEP is a water-soluble and amorphous structured polymer that has been known to embrace gel PE in addition of metal salts. Interestingly in addition, it can acquire hydrogel characteristics upon exposure to high energy radiation such as UV irradiation, γ-rays, and x-rays due to polymer crosslinking [7][8][9][10][11]13]. The chemical formula of MEEP polymer is shown in figure 1.…”

Section: Introductionmentioning

confidence: 99%

“…The chemical formula of MEEP polymer is shown in figure 1. The backbone chain of polyphosphazene-based MEEP has been known to provide thermal and chemical stability as well as complementarily provide flame retardant strength to the structure [8][9][10][11]. In fact, the pendant group of the alkyl ether chain, i.e., methoxy ethoxy ethoxy (MEE), is predicted to enable ion conduction properties in the amorphous MEEP, similar to those of the crystalline PEO polymer [10].…”

Section: Introductionmentioning

confidence: 99%

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Interfacial molecular structure of phosphazene-based polymer electrolyte at the air-aqueous interface using sum frequency generation vibrational spectroscopy

Kaur,

Tomar,

Chaudhary

et al. 2023

J. Phys.: Condens. Matter

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The change induced in the physicochemical properties of polymer while hosting ions provides a platform for studying its potential applications in electrochemical devices, water treatment plants, and materials engineering science. The ability to host ions is limited in very few polymers, which lack a detailed molecular-level understanding for showcasing the polymer-ion linkage behavior at the interfacial region. In the present manuscript, we have employed sum frequency generation (SFG) vibrational spectroscopy to investigate the interfacial structure of a new class phosphazene-based methoxyethoxyethoxyphosphazene (MEEP) polymer in the presence of lithium chloride salt at the air-aqueous interface. The interfacial aspects of the molecular system collected through SFG spectral signatures reveal enhanced water ordering and relative hydrogen bonding strength at the air-aqueous interface. The careful observation of the study finds a synchronous contribution of van der Waals and electrostatic forces in facilitating changes in the interfacial water structure that are susceptible to MEEP concentration in the presence of ions. The observation indicates that dilute MEEP concentrations support the role of electrostatic interaction, leading to an ordered water structure in proximity to diffused ions at the interfacial region. Conversely, higher MEEP concentrations promote the dominance of van der Waals interactions at the air-aqueous interface. Our study highlights the establishment of polymer electrolyte (PE) characteristics mediated by intermolecular interactions, as observed through the spectral signatures witnessed at the air-aqueous interface. The investigation illustrates the polymer-ion linkage adsorption effects at the interfacial region, which explains the macroscopic changes observed from the cyclic voltammetry studies. The fundamental findings from our studies can be helpful in the design and fine-tuning of better PE systems that can offer improved hydrophobic membranes and interface stability for use in electrochemical-based power sources.

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Effect of Halloysite Nanotubes as Novel Nanofiller on Peroxide- and Electron Beam Radiation-Initiated Polyphosphazene Elastomer

Cited by 5 publications

References 46 publications

Radiation Processing of Polymer-based Nanomaterials

Radiation Processing of Polymer-based Nanomaterials

Molecular dynamics simulation of salt diffusion in constituting phosphazene-based polymer electrolyte

Interfacial molecular structure of phosphazene-based polymer electrolyte at the air-aqueous interface using sum frequency generation vibrational spectroscopy

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