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Sodium 2-[~o-methacryloyl oligo(oxyethylene)] ethylsulfonate has been synthesized and polymerized to prepare a polymeric solid electrolyte with Na ? single-ionic conductivity. The length of oligo(oxyethylene) side chain determines the glass transition temperature and salt concentration of the homopolymers, and consequently influences the conductivity. The highest conductivity of 3.5 x I0- 6 S cm- 1 at 25°C is obtained when the number of CH2CH20 repeat units in the side chain is equal to 14. The temperature dependence of the ionic conductivity shows a curved Arrhenius plot, suggesting that ionic conduction is closely associated with segmental motion of the polymer host. The Williams-Landel-Ferry (WLF) empirical equation, which is based on the free-volume theory, is found to be valid for describing the conductivity data, and the obtained WLF parameters are comparable with the universal values.

Посилання на статтю:

Poly{sodium 2- [w-methacryloyl oligo(oxyethylene) ] ethylsulfonate} as a new type of polymer electrolyte with Na + single-ionic conductivity / Sheng-shui Zhang and Qing-guo Liu // Polymer. – 1994. – Vol 35. – P. 3740-3744.

Poly{sodium 2- [w-methacryloyl oligo(oxyethylene) ] ethylsulfonate} as a new type of polymer electrolyte with Na + single-ionic conductivity - Завантажити.