Ion-conductivity of Gels based on Poly(divinyl ether of diethyleneglycol) and Lithium Perchlorate
Sarkyt E. Kudaibergenov1, Kenji Miyatake2, Shinji Takeoka2, Eishun Tsuchida2 and Esen A. Bekturov3
1Institute of Polymer Materials and Technology, Satpaev str. 18a, 050013,
2Department of Polymer Chemistry, Advanced Research Institute for Science and
3A.B. Bekturov Institute of Chemical Sciences, 106
Ualikhanov str. 050010,
A new type of amorphous polyether networks containing both “ladder-type” and branched structures have been synthesized by g-irradiation polymerization from the short ethyleneoxide monomer bearing divinyl end groups. The branched structure is formed due to elimination of hydrogen atoms from the side ethylene groups of the crosslinker. Thermal properties of gel specimen and gel-LiClO4 complexes as well as conductivity-temperature relationships are discussed in terms of prearrangement of gel matrix during heating-quenching process. Annealing of gel-LiClO4 complexes considerably increases the conductivity. After several runs an elastomeric polymer electrolytes show a stable conductivity of the order 10-4 S×cm-1 at 60°C. The activation energies of conductivity from the Arrhenius-type dependences have also been calculated.