PVDF-Based Nanocomposite Solid Polymer Electrolytes; the Effect of Affinity Between PVDF and Filler on Ionic Conductivity

Lee, Yujin; Jeong, Soo-Kyeong; Jo, Nam‐Ju

doi:10.1163/156855409x450909

Cited by 8 publications

(8 citation statements)

References 15 publications

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“…This result is in agreement with the SEM results, showing that the PIM surface is characterized by the absence of spherulites (i.e., surface crystal structure) ( Figure 4 ). The MMT ability to change the PVDF crystallinity has been already reported by Lee et al [ 39 ]. In that case, two types of MMT (C30B and C15A) were incorporated into a PVDF matrix and a decrease of the PVDF crystallinity was observed.…”

Section: Resultsmentioning

confidence: 57%

“…It has been already shown that homogeneous nanoparticle dispersion in a polymer matrix makes possible significant improvement of mechanical strength and better controlled transport properties [ 37 , 38 ]. It is shown that the good dispersion of more or less exfoliated fillers in a semi-crystalline polymer (such as PVDF) can hinder its crystallization, while a less successful dispersion (i.e., intercalation and aggregation) can promote the growth of PVDF crystals [ 39 ]. It is known that the nanoparticles can have a nucleating effect depending on the particle size, their quantity and compatibility with the polymer, so the polymer crystallinity can be reduced or, on the contrary, increased.…”

Section: Resultsmentioning

confidence: 99%

“…Really, the membrane containing 20 wt % of C30B, 30 wt % of Aliquat 336 and 50 wt % of PVDF (Figure 3c) appears to be more transparent and smoother compared to the membrane containing CNa (Figure 3b). Such a result may be explained by a better compatibility between C30B clays and the PVDF chains, thus leading to a better dispersion of nanoclays in the PVDF matrix and probably inducing a reduction of the spherulite formation and, so, a crystallinity decrease [39]. The PIM structure and morphology are crucial parameters as they strongly influence transport and extraction properties.…”

Section: Membrane Morphologymentioning

confidence: 99%

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Novel Poly(Vinylidene Fluoride)/Montmorillonite Polymer Inclusion Membrane: Application to Cr(VI) Extraction from Polluted Water

et al. 2021

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Novel hybrid polymer inclusion membranes (PIMs) based on poly(vinylidene fluoride) (PVDF) (polymer matrix) and Aliquat 336 (ion carrier) and containing native sodium (Cloisite Na+ (CNa)) and organo-modified (Cloisite 30B (C30B)) Montmorillonites were elaborated and tested for the removal of toxic Cr(VI) ions from the aqueous solution. The influence of the nanoclay incorporation on the physicochemical properties of PVDF-based PIMs was studied and the resulting membrane transport properties of the Cr(VI) ions were investigated in detail. The water contact angle measurements reveal that the incorporation of the CNa nanofiller affects the membrane wettability as less hydrophilic surface is obtained in this case—~47° in the presence of CNa as compared with ~15° for PIMs with C30B. The membrane rigidity is found to be dependent on the type and size of the used Montmorillonite. The increase of Young’s modulus is higher when CNa is incorporated in comparison with C30B. The stiffness of the PIM is strongly increased with CNa amount (four times higher with 30 wt %) which is not the case for C30B (only 1.5 times). Higher Cr(VI) permeation flux is obtained for PIMs containing CNa (~2.7 µmol/(m2·s)) owing to their porous structure as compared with membranes loaded with C30B and those without filler (~2 µmol/(m2·s) in both cases). The PIM with 20 wt % of native sodium Montmorillonite revealed satisfactory stability during five cycles of the Cr(VI) transport due to the high membrane rigidity and hydrophobicity. Much lower macromolecular chain mobility in this case allows limiting the carrier loss, thus increasing the membrane stability. On the contrary, a deterioration of the transport performance is recorded for the membrane filled with C30B and that without filler. The obtained results showed the possibility to extend the PIM lifetime through the incorporation of nanoparticles that diminish the carrier loss (Aliquat 336) from the membrane into the aqueous phase by limiting its mobility within the membrane by tortuosity effect and membrane stiffening without losing its permselective properties.

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Section: Resultsmentioning

confidence: 57%

Section: Resultsmentioning

confidence: 99%

Section: Membrane Morphologymentioning

confidence: 99%

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Novel Poly(Vinylidene Fluoride)/Montmorillonite Polymer Inclusion Membrane: Application to Cr(VI) Extraction from Polluted Water

et al. 2021

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“…A great extent of basic concepts related to the relaxation dynamics of charge carriers in ionic solid polymer electrolyte still needs to be understood. Various types of polymer‐based electrolytes like poly(ethylene oxide; PEO) , poly(methyl methacrylate; PMMA) , poly(vinylidene fluoride; PVDF) , poly(vinylidene fluoride‐co‐hexafluoropropylene) , and poly(ethylene glycol) were developed . Among which PEO possesses unique features like desirable film formation, is used as an electrolyte in lithium‐ion batteries , supercapacitors, and so forth.…”

Section: Introductionmentioning

confidence: 99%

Conductivity and dielectric permittivity studies of KI‐based nanocomposite (PEO/PMMA/KI/I₂/ZnO nanorods) polymer solid electrolytes

et al. 2018

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In this present study, we have studied the relaxation behaviour and dynamics of charge carriers in poly(ethylene oxide; PEO)/poly(methyl methacrylate; PMMA) blend with potassium based iodide–triiodide redox couple as polymer solid electrolyte dispersed with different concentration of ZnO nanorods as fillers. Various composition of potassium iodide (KI)‐based nanocomposite (PEO/PMMA/KI/I2/x wt% ZnO nanorods, x = 0, 2, 4, 6, 8, and 10) polymer solid electrolytes (NCPSEs) films were prepared by solution casting technique. Structural properties of the prepared solid electrolytes are studied by X‐ray diffraction and Fourier transform infrared spectroscopy. Among the prepared NCPSEs, 6 wt% sample of solid electrolyte showed high conductivity of 4.698 × 10−5 S/cm. The relaxation and dynamics of charge carriers are studied by analyzing complex conductivity and dielectric permittivity through power law along with the contribution of electrode polarization and Havriliak–Negami formalism, respectively, for the prepared polymer solid electrolytes to find out their usefulness for dye‐sensitized solar cell applications. © 2018 Society of Plastics Engineers POLYM. COMPOS., 40:2919–2928, 2019. © 2018 Society of Plastics Engineers

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“…Several works have reported homopolymers based SPE including poly(vinyl chloride), poly(vinyl alcohol), poly(vinylidene fluoride) (PVDF), and so on. However, homopolymers possess a regularity of the structure unit, thereby they have high crystallinity nature which can greatly affect the ionic conductivity of SPEs .…”

Section: Introductionmentioning

confidence: 99%

Solid terpolymer electrolyte based on poly(vinyl butyral‐co‐vinyl alcohol‐co‐vinyl acetate) incorporated with lithium salt and tetraglyme for EDLCs

Bidin

Ming

Omar

et al. 2017

J of Applied Polymer Sci

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Solid terpolymer electrolytes (STEs) consist of different ratios of poly(vinyl butyral‐co‐vinyl alcohol‐co‐vinyl acetate) (PVBVA) and bis(trifluoromethane) sulfonamide lithium salt (LiTFSi) were prepared and the ionic conductivity of the prepared STEs was evaluated. The optimized STE (denoted as STE 20) was further doped with various amount of tetraglyme (10, 20, and 30 wt % and denoted as G10, G20, and G30, respectively). G20 enhanced the ionic conductivity from 6.22 (for STE 20) to 21.9 µS cm−1. This enhancement is due to the presence of abundant oxygen‐containing functional group in tetraglyme that provides more charge carrier mobility in the polymer matrix. The structure and complexation of the materials are authenticated via X‐ray diffraction and Fourier transform infrared spectroscopy analysis. The performance of electric double layer capacitors based on activated carbon (AC) fabricated with STE 20 (AC/STE 20/AC) and G20 (AC/G 20/AC) were studied via cyclic voltammetry, galvanostatic charge–discharge, and electrochemical impedance spectroscopy. AC/G 20/AC achieved the maximum specific capacitance of 10.20 F/g [which is higher than AC/STE 20/AC (9.30 F/g)] with 75% of specific capacitance retention after 1500 cycles. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45902.

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PVDF-Based Nanocomposite Solid Polymer Electrolytes; the Effect of Affinity Between PVDF and Filler on Ionic Conductivity

Cited by 8 publications

References 15 publications

Novel Poly(Vinylidene Fluoride)/Montmorillonite Polymer Inclusion Membrane: Application to Cr(VI) Extraction from Polluted Water

Novel Poly(Vinylidene Fluoride)/Montmorillonite Polymer Inclusion Membrane: Application to Cr(VI) Extraction from Polluted Water

Conductivity and dielectric permittivity studies of KI‐based nanocomposite (PEO/PMMA/KI/I₂/ZnO nanorods) polymer solid electrolytes

Solid terpolymer electrolyte based on poly(vinyl butyral‐co‐vinyl alcohol‐co‐vinyl acetate) incorporated with lithium salt and tetraglyme for EDLCs

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PVDF-Based Nanocomposite Solid Polymer Electrolytes; the Effect of Affinity Between PVDF and Filler on Ionic Conductivity

Cited by 8 publications

References 15 publications

Novel Poly(Vinylidene Fluoride)/Montmorillonite Polymer Inclusion Membrane: Application to Cr(VI) Extraction from Polluted Water

Novel Poly(Vinylidene Fluoride)/Montmorillonite Polymer Inclusion Membrane: Application to Cr(VI) Extraction from Polluted Water

Conductivity and dielectric permittivity studies of KI‐based nanocomposite (PEO/PMMA/KI/I2/ZnO nanorods) polymer solid electrolytes

Solid terpolymer electrolyte based on poly(vinyl butyral‐co‐vinyl alcohol‐co‐vinyl acetate) incorporated with lithium salt and tetraglyme for EDLCs

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Conductivity and dielectric permittivity studies of KI‐based nanocomposite (PEO/PMMA/KI/I₂/ZnO nanorods) polymer solid electrolytes