Impedance spectra analysis of thermoresponsive poly(acryloyl--proline methyl ester) gel membrane in LiCl solution

Chen, J.; Asano, Masaharu; Tsubokawa, Norio*; Maekawa, Yasunari; Yamaki, Tetsuya; Yoshida, Masaru

Journal of Polymer Science, Part B; Polymer Physics, 43(20), p.2843 - 2851, 2005/10

https://doi.org/10.1002/polb.20570

Impedance spectra analysis of a thermo-responsive poly(acryloyl--proline methyl ester) (poly(A-ProOMe)) hydrogel membranes in an aqueous solution of LiCl was carried out using a simple equivalent model. The hydrogel membrane was synthesized by -radiation-induced polymerization and crosslinking of A-ProOMe monomer aqueous solution in a glass-cast. By means of the impedance spectra analysis, a novel method for the calculation of the ionic conductivity of the hydrogel membranes in LiCl solution was proposed. The calculated ionic conductivity was in agreement well with the determined value. In addition, effects of temperature and LiCl concentration on the impedance spectra and ionic conductivity of the gel membrane were analysized. Results indicated that the impedance spectra analysis is a very useful tool for evaluating the electric properties of gel membranes in an electrolyte solution. The poly(A-ProOMe) gel membrane in 1.0 M LiCl solution showed a high ionic conductivity of about 0.2 S/cm at 14C. The temperature-dependence of the ionic conductivity was a complex nonlinear form due to the volume phase transition of the thermo-responsive poly(A-ProOMe) gel membrane, and the volume phase transition temperature appeared to be decreased with the increase in the LiCl concentration.

Electrical conductivity of a sintered pellet of octalithium zirconate

; Konishi, Satoshi; ; Kurasawa, T.; Katsuta, Hiroji; ;

Journal of Nuclear Materials, 132, p.222 - 230, 1985/00

https://doi.org/10.1016/0022-3115(85)90367-8

no abstracts in English

Comments on transport phenomena of ionic liquids

; Furukawa, Kazuo

First Inter.Symp.on Molten Salt Chem.Technol.,J-315, p.449 - 452, 1983/00

no abstracts in English

Lithium Movement and Tritium (Hydrogen) Behavior in LiO,LiSiO and LiAlO

; Konishi, Satoshi; ; ; Katsuta, Hiroji; ; ;

JAERI-M 82-146, 33 Pages, 1982/10

JAERI-M-82-146.pdf:1.18MB

no abstracts in English