An investigation of poly(ethylene oxide)/saponite-based composite electrolytes

Zhang, Wen; Gu, Zhonghua; Itoh, Takahito; Lin, Zhangxi; Yamamoto, Osamu

doi:10.1016/s0378-7753(03)00182-4

Cited by 17 publications

(11 citation statements)

References 12 publications

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“…This indicates that the nanoeffect is realized only for the nanocomposites with lower concentration of clay (<6 wt%). This is due to the decrease in homogeneity of dispersion at higher concentration of clay as has been confirmed by x‐ray diffraction and atomic force microscopy analysis elsewhere [18, 21, 22].…”

Section: Resultssupporting

confidence: 64%

“…However, the major problem is that the related systems exhibit poor mechanical properties. The incorporation of layered silicate have been investigated using various methods namely solution intercalation [16–18], steady state annealing [19], and melt extrusion [20]. Recently, we have reported the optimization of processing parameters for the synthesis of PEO/clay nanocomposite via melt mixing based on the rheological experimental results [21].…”

Section: Introductionmentioning

confidence: 99%

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Rheological properties and crystal morphology of poly(ethylene oxide)/clay nanocomposites

Ratna

Abraham

2011

Polymer Composites

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Poly(ethylene oxide) (PEO)/organoclay nanocomposites were prepared by a solution intercalation method. The crystallization behavior of the nanocomposites was investigated by a cross‐polarized optical microscopy (CPOM) fitted with a hot‐stage facility. A decrease in size and regularity were observed as a result of incorporation of clay into the PEO matrix. The dynamic viscoelastic behavior of PEO/organoclay nanocomposites was assessed using a strain‐controlled parallel plate rheometer. The effects of clay concentration on the rheological properties of the nanocomposites were extensively studied. A significant increase in the viscosity and storage modulus of the nanocomposites was found with increasing clay content. The reinforcing effect of the organoclay was determined by using a dynamic mechanical analyzer (DMA) and compared with the theoretically calculated values. POLYM. COMPOS., © 2011 Society of Plastics Engineers.

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Section: Resultssupporting

confidence: 64%

Section: Introductionmentioning

confidence: 99%

Rheological properties and crystal morphology of poly(ethylene oxide)/clay nanocomposites

Ratna

Abraham

2011

Polymer Composites

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“…Therefore, modifications of PEO are needed to improve its mechanical properties for the development of high performance PEO-based solid polymer electrolytes. [21,22] The present paper discusses the crystallization behavior, thermomechanical properties and rheological properties of PEO/novolac blends. It also discusses morphological characterization of the blends using cross-polarized optical microscopy (CPOM), atomic force microscopy (AFM) and scanning electron microscopy (SEM).…”

Section: Full Papermentioning

confidence: 99%

Thermomechanical and Rheological Properties of High‐Molecular‐Weight Poly(ethylene oxide)/Novolac Blends

Ratna

Abraham

Karger‐Kocsis

2008

Macro Chemistry & Physics

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Blends of poly(ethylene oxide) (PEO) and novolac‐type phenolic resin were investigated for potential use as a crystallizable switching component for shape‐memory polymer systems with adjustable switching temperature. High‐molecular‐weight PEO and novolac blends with low novolac content were studied. Dynamic and isothermal DSC studies indicated a significant decrease in the crystallization temperature as a result of incorporation of novolac. We investigated the spherulitic morphology using a cross‐polarized optical microscopy and found a decrease in size and regularity of the spherulites with increasing novolac content. The rheological and mechanical properties corroborated the existence of strong interactions through H‐bonding in the amorphous phase.magnified image

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“…Organically modified Closite and PEO nanocomposites were also studied in this context . Wen et al reported PEO‐saponite composites with higher ionic conductivity and high lithium ion transference number. Chen et al incorporated organically modified clay in PEO‐LiClO 4 system, which exhibited higher ionic conductivity at room temperature.…”

Section: Introductionmentioning

confidence: 99%

Nanocomposite solid polymer electrolytes based on polyethylene oxide, modified nanoclay, and tetraethylammonium tetrafluoroborate for application in solid‐state supercapacitor

Sivaraman

Shashidhara

Thakur

et al. 2015

Polymer Engineering & Sci

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Nanocomposite solid polymer electrolytes (SPEs) have been prepared from polyethylene oxide (PEO), organically modified nanoclay (MNclay), and tetraethylammonium tetrafluoroborate (TEABF4) salt. The concentration of the salt has been varied in the respective SPE, wherein PEO/MNclay ratio was kept constant. It has been proposed that three types of complex formation could be operative in the SPEs due to the interactions among PEO, MNclay, and the salt. The complex formation mechanism has been postulated on the basis of X‐ray diffraction (XRD) analysis, transmission electron microscopic (TEM) observation, differential scanning calorimetric (DSC) analysis, and polarized optical microscopic (POM) observation. ‘Complex 1’ and ‘complex 3’ formation could be involved in the crystalline phase as indicated by DSC and XRD analyses, whereas ‘complex 2’ formation might be restricted in the amorphous phase as suggested by TEM observation. The ionic conductivity of the SPEs has been correlated with the results obtained from XRD, DSC, and POM analyses. The formation of complex 1 and complex 2 could be responsible for the increase in the ionic conductivity, whereas complex 3 formation might decrease the ionic conductivity. An activated carbon‐based supercapacitor has been fabricated using SPEs and characterized by cyclic voltammetry, galvanostatic ‘charge–discharge’ behavior, and impedance spectroscopic analysis. POLYM. ENG. SCI., 55:1536–1545, 2015. © 2015 Society of Plastics Engineers

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An investigation of poly(ethylene oxide)/saponite-based composite electrolytes

Cited by 17 publications

References 12 publications

Rheological properties and crystal morphology of poly(ethylene oxide)/clay nanocomposites

Rheological properties and crystal morphology of poly(ethylene oxide)/clay nanocomposites

Thermomechanical and Rheological Properties of High‐Molecular‐Weight Poly(ethylene oxide)/Novolac Blends

Nanocomposite solid polymer electrolytes based on polyethylene oxide, modified nanoclay, and tetraethylammonium tetrafluoroborate for application in solid‐state supercapacitor

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