Details

Autor(en) / Beteiligte

• Marwanta, Edy
• Mizumo, Tomonobu
• Ohno, Hiroyuki

Titel

Improved ionic conductivity of nitrile rubber/Li(CF 3SO 2) 2N composites by adding imidazolium-type zwitterion

Ist Teil von

• Solid state ionics, 2007-02, Vol.178 (3), p.227-232

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2007

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Polymer electrolytes based on the composite of nitrile rubber (NBR; poly(acrylonitrile-co-1,4-butadiene)) and Li(CF 3SO 2) 2N (Li(Tf) 2N) were prepared and their ionic conductivity was evaluated. NBR with nitrile content of 33% was mixed with 25 wt% Li(Tf) 2N to show the highest ionic conductivity, while still in the rubbery state. Furthermore, addition of 9.2 wt% imidazolium-type zwitterion enhanced the ionic conductivity of about 8 times (5.6 × 10 − 6  S cm − 1 at 50 °C) with lithium ion transference number of 0.32. FT-IR investigations suggested that the interaction between NBR and Li + ion decreased by the addition of zwitterion. DSC measurements on the composites consisting of NBR, Li(Tf) 2N, and zwitterion strongly suggested micro-phase separation between NBR-rich phase and zwitterion-rich phase.