TY - JOUR
T1 - Nanocomposite polymer electrolytes containing silica nanoparticles
T2 - Comparison between poly (ethylene glycol) and poly(ethylene oxide) dimethyl ether
AU - Park, Jung Tae
AU - Lee, Kyung Ju
AU - Kang, Moon Sung
AU - Kang, Yong Soo
AU - Kim, Jong Hak
PY - 2007/12/15
Y1 - 2007/12/15
N2 - Nanocomposite polymer electrolytes consisting of low molecular weight polyethylene oxide) (PEO), iodine salt MI (M = K+, imidazolium +), and fumed silica nanoparticles have been prepared and characterized. The effect of terminal group in PEP, i.e., hydroxyl (-OH) and methyl (CH3) using poly(ethylene glycol) (PEG) and PEO dimethyl ether (PEODME), respectively, was investigated on the interactions, structures, and ionic conductivities of polymer electrolytes. Wide angle X-ray scattering (WAXS), differential scanning calorimetry (DSC), and complex viscosity measurements clearly showed that the gelation of PEG electrolytes occurred more effectively than that of PEODME electrolytes. It was attributed to the fact that the hydroxyl groups of PEG participated in the hydrogenbonding interaction between silica nanoparticles, and consequently helped to accelerate the gelation reaction, as confirmed by FTIR spectroscopy. Because of its interaction, the ionic conductivities of PEG electrolytes (maximum value ∼ 6.9 × 10-4 S/cm) were lower than that of PEODME electrolytes (2.3 × 10-3 S/cm).
AB - Nanocomposite polymer electrolytes consisting of low molecular weight polyethylene oxide) (PEO), iodine salt MI (M = K+, imidazolium +), and fumed silica nanoparticles have been prepared and characterized. The effect of terminal group in PEP, i.e., hydroxyl (-OH) and methyl (CH3) using poly(ethylene glycol) (PEG) and PEO dimethyl ether (PEODME), respectively, was investigated on the interactions, structures, and ionic conductivities of polymer electrolytes. Wide angle X-ray scattering (WAXS), differential scanning calorimetry (DSC), and complex viscosity measurements clearly showed that the gelation of PEG electrolytes occurred more effectively than that of PEODME electrolytes. It was attributed to the fact that the hydroxyl groups of PEG participated in the hydrogenbonding interaction between silica nanoparticles, and consequently helped to accelerate the gelation reaction, as confirmed by FTIR spectroscopy. Because of its interaction, the ionic conductivities of PEG electrolytes (maximum value ∼ 6.9 × 10-4 S/cm) were lower than that of PEODME electrolytes (2.3 × 10-3 S/cm).
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U2 - 10.1002/app.26951
DO - 10.1002/app.26951
M3 - Article
AN - SCOPUS:36349027497
SN - 0021-8995
VL - 106
SP - 4083
EP - 4090
JO - Journal of Applied Polymer Science
JF - Journal of Applied Polymer Science
IS - 6
ER -